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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Only 1 leftSecretlab Titan Evo (Regular)
Premium gaming chair. Magnetic memory-foam pillow, 4D armrests, integrated lumbar support. Multiple SKU sizes.
Nextron Nforce AMD Radeon RX 580 8GB GDDR5 Graphics Card
[Graphics Card] Nextron Nforce AMD Radeon RX 580 8GB GDDR5 Dual Fan Gaming Graphics Card The Nextron Nforce RX 580 8GB delivers responsive, fluid 1080p gaming performance powered by AMD Polaris architecture. Equipped with 8GB of high-speed GDDR5 memory and a dual-fan thermal cooling solution with copper heat pipes. ⭐ Key Features - High-capacity 8GB GDDR5 video memory with 256-bit bus width - Dual 90mm cooling fans with multi-rib heat dissipation - Dual slot aerodynamic shroud design - AMD FreeSync technology support for tear-free gaming - DirectX 12 and Vulkan API hardware acceleration - Multiple display connectivity with HDMI, DisplayPort, and DVI-D 📋 Technical Specifications - GPU Engine: AMD Radeon RX 580 (Polaris 20) - Stream Processors: 2048 Cores - Core Clock: Up to 1284 MHz - Memory Clock: 7000 MHz effective - Memory Interface: 256-bit GDDR5 - Bus Type: PCI-Express 3.0 x16 - Video Outputs: 1x HDMI 2.0b, 3x DisplayPort 1.4, 1x Dual-Link DVI-D - Thermal Design Power (TDP): 150W - Power Connector: 1x 8-Pin PCIe - Recommended Power Supply: 450W minimum 🎯 Applications - Budget 1080p gaming (CS2, GTA V, Valorant, Apex Legends, Fortnite) - Multi-monitor workstation setups for trading and productivity - Affordable 3D rendering and graphic design rigs 📦 Package Includes - 1 x Nextron Nforce RX 580 8GB GDDR5 Graphics Card - 1 x Driver CD & Quick Installation Guide
26650 Battery Holder / Battery Spacer 2×1 – 26.3mm Bore Diameter
[Lithium Battery Holder] 26650 Battery Holder / Battery Spacer 2×1 – 26.3mm Bore Diameter The 26650 Battery Holder / Battery Spacer 2×1 is a cylindrical battery spacer designed to securely arrange 26650 lithium-ion battery cells while building multi-cell battery packs. Made from flame-retardant ABS+PC material, it provides a strong and stable structure while allowing air circulation around the cells. The holder features interlocking slots on the edges, allowing multiple spacers to be joined together to create different battery-pack sizes and configurations. After welding nickel strips, the assembled battery pack can achieve a solid and reliable structure without requiring additional connecting hardware. ⭐ Key Features Designed for 26650 cylindrical lithium-ion cells 2 × 1 configuration 26.3mm bore diameter Made from flame-retardant ABS+PC material High-temperature resistant construction Crack-resistant design Interlocking slots for connecting multiple spacers Allows flexible battery-pack configurations Provides mechanical support for battery cells Helps maintain proper spacing between cells Suitable for high-current battery-pack construction Helps improve battery-pack stability and reliability Allows airflow around the cells for heat dissipation 📋 Technical Specifications Product Type: Battery Holder / Battery Spacer Compatible Cell: 26650 cylindrical battery Configuration: 2 × 1 Number of Cells: 2 Bore Diameter: 26.3mm Material: Flame-retardant ABS+PC Construction: Interlocking modular design Mounting: Multiple spacers can be joined together Application: Lithium battery pack assembly Cell Type: Cylindrical Li-ion cells 🔧 Applications 26650 lithium-ion battery packs E-bike battery packs Electric scooter battery packs Electric vehicle battery packs Power-tool battery packs DIY high-current battery packs UPS battery systems Solar energy storage packs Portable power stations Robotics battery packs Custom lithium battery assemblies 🛠️ How to Use The spacer is designed to hold two 26650 cells in a 2×1 arrangement. Multiple spacers can be connected through the slots provided around the edges to create larger battery-pack configurations. For a complete battery pack: Cell → Spacer → Nickel Strip Welding → Additional Spacers → Battery Pack For mechanical support, spacers can be positioned at the top and bottom of the cells. Important: For each individual battery cell, 2 spacers are recommended—one at the top and one at the bottom. 💡 Advantages Simple Assembly: Easy to arrange cylindrical cells. Flexible Design: Multiple spacers can be interconnected to create different pack shapes. Strong Construction: Helps keep cells firmly positioned. Heat Dissipation: Provides spacing between cells and allows airflow. Reliable Battery Pack: Helps make the completed pack mechanically stable. Suitable for Complex Packs: Useful for custom battery configurations, including e-bike and high-current applications. ⚠️ Important Notes This product is only a battery holder/spacer; batteries are not included. The 26.3mm bore is intended for compatible 26650 cells. Check your actual cell diameter before purchase. Do not force oversized cells into the holder. Battery cells should be properly insulated and securely assembled. Use suitable nickel strip and an appropriate spot-welding method. Use a suitable BMS/protection system for the completed lithium battery pack. Battery cells should be properly matched before assembling a multi-cell pack. 2 spacers are recommended per individual cell, one on each end. Keep the battery assembly away from excessive heat, moisture and physical damage. 📦 Package Includes 1 × 26650 Battery Holder / Battery Spacer – 2×1, 26.3mm Bore Diameter Note: Battery cells, nickel strips and BMS are not included.
48mm Square Internal Magnet Speaker – 4Ohms 5W
[Speakers] 48mm Square Internal Magnet Speaker – 4Ω 5W The 48mm Square Internal Magnet Speaker is a compact full-range audio driver designed for clear and efficient sound reproduction in space-constrained applications. With a 4Ω impedance and 5W power rating, this speaker is suitable for Bluetooth speakers, portable audio systems, DIY speaker projects and embedded electronic devices. Its square frame allows convenient mounting inside compact enclosures and panels. ⭐ Key Features Compact square speaker design 4Ω impedance 5W power rating Internal magnet construction Full-range audio output Compact size for space-limited applications Easy to install inside speaker enclosures Suitable for DIY and commercial audio projects Lightweight and practical design 📋 Technical Specifications Speaker Type: Internal Magnet Speaker Shape: Square Speaker Size: 48mm class Model: 4Ω 5W Impedance: 4Ω Power Rating: 5W Magnet Type: Internal Magnet Audio Type: Full-range Mounting Type: Panel / Enclosure Mount Dimensions: 47 × 29 × 23mm Application: Compact audio systems, DIY electronics and portable speakers 🔧 Applications Bluetooth speaker systems Portable speakers DIY speaker projects Compact audio enclosures Embedded audio systems Intercom systems Alert and notification devices Educational electronics projects Consumer electronic devices Custom audio projects 🛠️ Installation Connect the speaker to a compatible amplifier with a 4Ω output. Ensure the amplifier's output power is suitable for the speaker's 5W rating. Mount the speaker securely inside the enclosure to reduce unwanted vibration. Observe correct speaker polarity when connecting multiple speakers. 📦 Package Includes 1 × 48mm Square Internal Magnet Speaker Impedance: 4Ω Power: 5W ⚠️ Precautions Do not exceed the 5W rated power for prolonged operation. Use a compatible 4Ω amplifier. Avoid short-circuiting the speaker terminals. Keep away from moisture, excessive heat and physical damage. Ensure proper mounting to minimize vibration and unwanted noise. Actual sound quality depends on the amplifier, enclosure and application.
Passive Radiator Bass Diaphragm Rubber Speaker Vibration Plate for DIY Speakers
[Passive Radiator] 🔊 Oval, Square & Round Passive Radiator Bass Diaphragm Rubber Speaker Vibration Plate for DIY Speakers Deep Bass Enhancement • Passive Design • No External Power Required • Ideal for DIY Speaker Projects The Rubber Passive Radiator Bass Diaphragm is a high-quality auxiliary bass vibration plate designed to significantly improve the low-frequency response of speaker systems. Available in Oval, Square, and Round shapes with multiple sizes, this passive radiator enhances bass performance without requiring additional power or amplifier channels. Unlike conventional speakers, a passive radiator does not contain a voice coil or magnet. Instead, it utilizes the air pressure generated by the active speaker driver to vibrate, producing deeper, richer bass while minimizing distortion and unwanted cabinet resonance. Manufactured using premium rubber and durable ABS materials, these passive radiators provide excellent flexibility, durability, and long service life. They are ideal for upgrading Bluetooth speakers, portable speakers, multimedia speakers, subwoofers, soundbars, and custom DIY audio projects. Whether you're repairing an existing speaker or building a custom enclosure, these passive bass diaphragms help deliver powerful low-frequency performance while maintaining compact enclosure sizes. ⭐ Features Premium quality rubber passive radiator Available in Oval, Square & Round shapes Produces deep and powerful bass response No power supply or wiring required Improves low-frequency performance Reduces speaker distortion Durable rubber suspension Lightweight and compact design Easy to install Ideal for DIY speaker upgrades and repairs 📋 Technical Specifications Product Type: Passive Radiator Bass Diaphragm Material: Rubber + ABS Plastic+Metal Shape: Oval / Square / Round (Depending on Selected Variant) Available Sizes: Multiple Sizes (2040 to 6090 Series) Operation: Passive (No Voice Coil or Magnet) Power Requirement: None Installation Type: Speaker Cabinet Mount Application: Low Frequency Bass Enhancement Color: Black 🔧 Applications Suitable for: Bluetooth Speakers Portable Speakers DIY Speaker Projects Multimedia Speakers Home Audio Systems Bookshelf Speakers Soundbars Subwoofers Wireless Speakers Audio System Repairs Custom Speaker Cabinets DIY Audio Enclosures 📦 Package Includes 1 × Passive Radiator Bass Diaphragm (Size & Shape as Selected) ⚠️ Note This is a passive radiator only and does not contain a voice coil, magnet, or electrical terminals. Product images are for reference only. The actual product may vary slightly in appearance depending on the selected size, shape, or manufacturing batch.
ESP32-C3 Super Mini Development Board With Headers Pins
[ESP Modules] Ultra Compact • Wi-Fi & BLE 5.0 • USB Type-C • Perfect for IoT & Embedded Projects The ESP32-C3 Super Mini Development Board is a compact, feature-rich development board built around the powerful ESP32-C3 SoC from Espressif. Powered by a 32-bit RISC-V single-core processor running at up to 160MHz, it combines 2.4GHz Wi-Fi, Bluetooth 5.0 Low Energy (BLE), and low-power operation in an ultra-small form factor. Designed for IoT, smart home, wireless communication, automation, and embedded system development, the ESP32-C3 Super Mini offers 4MB Flash memory, 400KB SRAM, multiple GPIOs, ADC, PWM, UART, SPI, and I2C interfaces for connecting sensors, displays, relays, and other peripherals. The onboard USB Type-C interface simplifies programming and power supply, while the built-in USB-to-Serial functionality enables quick firmware uploading without requiring additional programmers. Fully compatible with Arduino IDE, ESP-IDF, PlatformIO, and MicroPython, it is suitable for beginners, students, makers, and professional developers. Its ultra-compact breadboard-friendly design makes it ideal for portable and space-constrained projects where performance, wireless connectivity, and energy efficiency are essential. Note: Programming, software configuration, driver installation, firmware flashing, and coding-related issues are not covered under return or replacement. Users are expected to troubleshoot software-related issues independently. ⭐ Features Powerful ESP32-C3 32-bit RISC-V processor CPU frequency up to 160MHz Built-in 2.4GHz Wi-Fi (802.11 b/g/n) Integrated Bluetooth 5.0 Low Energy (BLE) Ultra-compact Super Mini design Breadboard-friendly layout USB Type-C interface for programming and power 4MB onboard Flash memory 400KB SRAM Multiple GPIO, ADC, PWM, UART, SPI & I2C interfaces Low power consumption with Deep Sleep mode Onboard programmable LED Compatible with Arduino IDE, ESP-IDF, PlatformIO & MicroPython Ideal for IoT, automation, robotics, and wireless applications 📋 Technical Specifications Product Type: Development Board Board Model: ESP32-C3 Super Mini Microcontroller: ESP32-C3 Processor Architecture: 32-bit RISC-V CPU Frequency: Up to 160MHz Core: Single Core Flash Memory: 4MB SRAM: 400KB Wi-Fi Standard: IEEE 802.11 b/g/n (2.4GHz) Bluetooth: Bluetooth 5.0 Low Energy (BLE) Operating Voltage: 3.3V Input Voltage: 5V via USB Type-C or 3.3V External USB Interface: USB Type-C GPIO: Multiple Digital GPIO Pins Analog Input: Up to 6 ADC Channels PWM: Supported UART: Supported SPI: Supported I2C: Supported USB-to-Serial: Onboard Onboard LED: User Programmable (GPIO8) Power Consumption: Ultra Low (Deep Sleep ≈ 43µA) Dimensions: Approx. 22.5 × 18 mm Headers: Pre-Soldered 🔧 Applications Suitable for: Internet of Things (IoT) Smart Home Automation Wireless Sensor Networks Home Automation Systems Bluetooth Low Energy Devices Wi-Fi Enabled Controllers Robotics Projects Data Logging Systems Remote Monitoring Industrial Automation Portable Embedded Devices Educational Learning DIY Electronics Projects Wearable Electronics Rapid Prototyping 📦 Package Includes 1 × ESP32-C3 Super Mini Development Board Pin Headers ⚠️ Note Programming, firmware installation, software configuration, and driver-related issues are not covered under warranty, return, or replacement. Please verify board compatibility and install the appropriate development environment before programming. Soldered and non-soldered header pin depend on stock
702025 3.7V 400mAh rechargeable Battery for Drone, Toys, Gaming, Robotics bluetoorh Headset, Bluetooth Speaker
[LiPo Cell] The 702025 3.7V 400mAh Rechargeable Lithium Polymer Battery is a compact and high-performance power source designed for portable electronic devices requiring lightweight and reliable energy storage. Built using advanced Lithium Polymer (Li-Po) technology, it provides high energy density, low self-discharge, and consistent output voltage. In addition, the battery delivers a nominal voltage of 3.7V with a capacity of 400mAh, making it suitable for powering compact electronic devices and embedded systems. As a result, it is widely used in drones, Bluetooth speakers, Bluetooth headsets, wireless gaming accessories, robotics, GPS devices, wearable electronics, and DIY battery-powered projects. Because of its slim profile and lightweight construction, the battery can be easily integrated into space-constrained applications. Furthermore, it supports multiple charge and discharge cycles while maintaining stable performance and long service life. The battery includes a pre-attached connector with insulated leads for quick installation and safe operation. Moreover, its rechargeable design makes it an economical and environmentally friendly power solution. ⚠️ Note: Charge the battery only with a compatible 3.7V Lithium Polymer battery charger or BMS protection circuit. 🔹 Key Features Rechargeable Lithium Polymer (Li-Po) battery High energy density Compact and lightweight design Stable 3.7V output Long charge/discharge cycle life Low self-discharge rate Pre-attached connection wires Suitable for portable electronic devices Reliable and safe performance Ideal for DIY electronics projects 🔹 Technical Specifications Battery Type: Lithium Polymer (Li-Po) Model: 702025 Nominal Voltage: 3.7V Full Charge Voltage: 4.2V Capacity: 400mAh Battery Dimensions: Approx. 7 × 20 × 25 mm Rechargeable: Yes Protection Circuit: Yes Charging Method: CC/CV (Constant Current / Constant Voltage) Operating Temperature: -10°C to +60°C Weight: Approximately 6–7g 🔹 Applications This battery is suitable for: Mini drones RC toys Bluetooth headsets Bluetooth speakers Wireless gaming controllers Robotics projects GPS trackers Wearable electronics DIY electronic devices Portable rechargeable products
3.7V BMS 1S 2A 18650 Lithium Battery Protection Board
[Lithium Battery Protection Board] The 1S 3.7V Lithium Battery Protection Board (BMS/PCM) is a compact battery management module designed specifically for single-cell lithium-ion batteries such as 18650, 14500, and similar 3.7V rechargeable cells. It continuously monitors battery voltage and current to ensure safe charging and discharging operations. In addition, the module provides multiple layers of protection including overcharge, over-discharge, overcurrent, and short-circuit protection. As a result, it helps extend battery life and improves the safety of battery-powered devices. Because of its compact size, the protection board can be easily integrated into DIY battery packs, portable electronics, LED lighting systems, and rechargeable battery projects. Furthermore, the board uses nickel-strip compatible terminals for easy battery pack assembly. The protection circuit is designed for long-term reliable operation and helps prevent damage caused by improper charging or excessive current draw. Moreover, it offers high voltage detection accuracy for improved battery management performance. ⚠️ Note: This protection board is designed for 3.7V Lithium-Ion batteries only and is not suitable for LiFePO4 batteries. 🔹 Key Features Single-cell (1S) lithium battery protection board Suitable for 18650 lithium-ion batteries Overcharge protection Over-discharge protection Overcurrent protection Short-circuit protection High voltage detection accuracy Compact and lightweight design Easy installation and integration Long operational life 🔹 Pin Configuration B+ : Battery Positive Terminal B- : Battery Negative Terminal P+ : Charge / Discharge Positive Terminal P- : Charge / Discharge Negative Terminal 🔹 Technical Specifications Product Type: Lithium Battery Protection Module (BMS/PCM) Battery Configuration: 1S (Single Cell) Compatible Battery Type: 3.7V Lithium-Ion (18650, 14500, etc.) Operating Voltage Range: 3.2V – 4.2V Overcharge Detection Voltage: 4.25 ± 0.05V Overcharge Release Voltage: 4.23 ± 0.05V Over-discharge Detection Voltage: 2.54 ± 0.1V Continuous Charge Current: 2A Continuous Discharge Current: 2A Maximum Supported Current: 2A – 5A Protection Functions: Overcharge, Over-discharge, Overcurrent, Short Circuit Terminal Type: Nickel Strip Compatible Board Life Expectancy: More than 20,000 Operating Hours 🔹 Applications This protection board is suitable for: 18650 battery packs Rechargeable lithium battery projects DIY power banks Portable electronics LED lighting systems Battery-powered devices Robotics projects Arduino and ESP32 power systems 🔹 Important Notes Not suitable for LiFePO4 batteries Not recommended for high-current motors above 4A Not suitable for electric bicycles or high-power battery packs Ensure correct polarity during installation Use only with compatible lithium-ion cells 🔹 Package Includes 1 × 1S 3.7V 2A Lithium-Ion Battery Protection Board (BMS/PCM)
3V 100mA LED Filament 45mm COB Edison Bulb Filament
[COB LED] The 3V 100mA LED Filament 45mm is a flexible COB LED light source designed for decorative lighting, Edison bulb restoration, DIY lamps, and creative illumination projects. Available in a variety of colors, it delivers bright and uniform light output while maintaining low power consumption. In addition, the filament provides 360-degree illumination, closely replicating the appearance of traditional Edison-style incandescent filaments. As a result, it is widely used in decorative bulbs, custom lighting fixtures, model lighting, art installations, and creative electronics projects. Because of its flexible substrate design, the filament can be slightly bent to fit custom enclosures and unique lighting arrangements. Furthermore, it produces minimal heat during operation, making it safe for compact and enclosed lighting applications. The advanced COB LED structure ensures consistent brightness, excellent efficiency, and long service life. Moreover, the solderable metal terminals allow quick integration into DIY electronics and lighting projects. 🔹 Key Features Available in multiple colors Bright and uniform light output COB LED filament design Low power consumption Excellent energy efficiency Minimal heat generation 360° illumination pattern Lightweight and compact structure Easy solderable metal terminals Long operational life 🔹 Technical Specifications Product Type: COB LED Filament Operating Voltage: 2.8V to 3.2V DC Rated Voltage: 3V DC Forward Current: 100mA (Maximum) Power Consumption: Approximately 0.3W Brightness: Approximately 80–100 Lumens per Watt Filament Type: COB (Chip-on-Board) LED Filament Base Material: Flexible Polymer Substrate Connection Type: Solderable Metal End-Caps led Length: 45mm Total Length: 55mm Filament Diameter: Approximately 2.0mm Terminal Size: Approximately 2mm × 2mm Weight: Less than 1g Available Colors: Warm White, Cool White, Red, Blue, Green (subject to availability) 🔹 Mechanical Specifications Filament construction Durable polymer substrate Highly resistant to mechanical shock Lightweight design Easy soldering connection terminals Suitable for custom lamp and lighting assemblies 🔹 Applications This LED filament is suitable for: Edison bulb repair and replacement Decorative LED lamps Custom lighting fixtures Battery-powered lighting projects Art installations Scale models and dioramas Display and showcase lighting Wearable electronics DIY electronics projects Creative lighting applications 🔹 Package Includes 1 × 3V 100mA LED Filament 38mm (Selected Color)
TDT LiFePO4 LFP 4S 12.8V 25A Battery Management System
[Lithium Battery Protection Board] The TDT 4S 12.8V 25A LiFePO4 Battery Management System (BMS) is designed to protect and manage 4-cell LiFePO4 battery packs. It continuously monitors each cell’s voltage and current to ensure safe and stable operation. In addition, the BMS includes a balancing function, which helps maintain equal voltage across all cells. As a result, the battery pack delivers better performance and longer life. Moreover, the module provides multiple protection features, including overcharge, over-discharge, overcurrent, and short-circuit protection. Therefore, it prevents damage to the battery and improves reliability. Because of its compact design and efficient performance, this BMS is ideal for solar systems, backup power solutions, electric vehicles, and DIY battery packs. 🔹 Key Features Supports 4S LiFePO4 (LFP) battery packs Nominal voltage 12.8V 25A continuous discharge current Built-in cell balancing High reliability and stable operation Compact and easy to install Suitable for various battery applications 🔹 Protection Functions Overcharge protection Over-discharge protection Overcurrent protection Short-circuit protection Temperature protection (if supported) 🔹 Technical Specifications Parameter Specification Brand TDT Battery Type LiFePO4 (LFP) Battery Configuration 4S Nominal Voltage 12.8V Max Continuous Current 25A Balance Function Yes Application Lithium battery protection 🔹 Applications Solar battery systems DIY LiFePO4 battery packs Backup power systems Electric scooters and bikes Energy storage systems (ESS) 🔹 Package Includes 1 × TDT 4S 12.8V 25A LiFePO4 BMS Board
2S 20A 7.4V / 8.4V 18650 Lithium Battery Protection Board with Balance
[Li-ion Rechargeable Battery Charger, Lithium Battery Protection Board] The 2S 7.4V / 8.4V 20A Lithium Battery Protection Board with Balancing is a compact and reliable Battery Management System (BMS) designed for 2-cell (2S) 18650 lithium-ion battery packs. This board provides complete protection and automatic cell balancing to ensure safe charging, stable discharging, and long battery life. With a nominal output of 7.4V and a full charge voltage of 8.4V, this protection board supports continuous current up to 20A, making it suitable for medium-power applications such as DIY battery packs, portable power tools, robotics, LED systems, solar projects, and backup power supplies. The built-in balancing function equalizes the voltage between both cells during charging, preventing overcharging of individual cells and improving overall pack efficiency and lifespan. Multiple protection features including over-charge, over-discharge, over-current, and short-circuit protection ensure maximum safety during operation. Compact in size and easy to wire, this BMS is ideal for both DIY users and professional battery pack manufacturers. ⭐ KEY FEATURES ✔ Designed for 2S (2-cell) 18650 lithium battery packs✔ 20A continuous discharge current support✔ Built-in cell balancing function✔ Protection against over-charge, over-discharge, over-current & short circuit✔ Improves battery safety, performance & lifespan✔ Compact PCB – easy to integrate✔ Ideal for DIY & professional battery pack builds 🔧 TECHNICAL SPECIFICATIONS Battery Configuration: 2S (2 cells in series) Nominal Voltage: 7.4V Full Charge Voltage: 8.4V Maximum Continuous Current: 20A Battery Type: 3.7V Li-ion (18650 rechargeable cells) Balancing Function: Yes (automatic during charging) Protection Functions: Over-charge protection Over-discharge protection Over-current protection Short-circuit protection 🔌 WIRING GUIDE – How to Connect 2S Battery Pack 🔹 Board Terminals (Typical Marking) B- → Battery negative (Cell 1 −) B1 → Between Cell 1 & Cell 2 B+ → Battery positive (Cell 2 +) 🔹 Output / Charger Terminals P- → Load / Charger negative P+ → Load / Charger positive (same as B+) 🔧 Connection Steps Connect Cell 1 negative → B- Connect Cell 1 positive / Cell 2 negative → B1 Connect Cell 2 positive → B+ Connect Load & Charger + → P+ (or B+) Connect Load & Charger − → P- ⚠️ Use only matched 18650 cells and an 8.4V Li-ion charger. 🎯 APPLICATIONS DIY lithium battery packs Power tools & cordless devices Robotics & automation projects LED lighting systems Solar battery packs Backup power & portable energy systems 📦 PACKAGE INCLUDES 1 × 2S 20A Lithium Battery Protection Board with Balancing
ESP32 Development Board with WiFi & Bluetooth – CH340C USB Type-C
[ESP Modules] The ESP32 Development Board with WiFi & Bluetooth (CH340C, Type-C) is a powerful and versatile microcontroller board designed for modern wireless and IoT applications. It features a dual-core processor and integrated 2.4GHz WiFi and Bluetooth (Classic + BLE) connectivity. This board includes an onboard CH340C USB-to-Serial converter, which allows easy programming and communication without requiring an external crystal oscillator. The USB Type-C port provides a stable and reversible connection for power and data. With a wide range of GPIO pins and peripherals such as ADC, DAC, PWM, UART, SPI, and I2C, this board is perfect for building home automation systems, smart devices, IoT nodes, robotics controllers, sensor networks, web servers, and wireless projects. It is fully compatible with Arduino IDE, ESP-IDF, and MicroPython, making it suitable for beginners, students, and professional developers. 🔹 Key Features Based on ESP32 dual-core microcontroller Built-in WiFi 802.11 b/g/n and Bluetooth v4.2 (Classic + BLE) Onboard CH340C USB-to-Serial converter (no external crystal required) Modern USB Type-C connector for power and programming Dual-core CPU up to 240 MHz for high-performance applications Multiple GPIO pins with ADC, DAC, PWM support Supports Arduino IDE, ESP-IDF, and MicroPython Low-power modes including deep sleep for battery-powered projects Compact design with breadboard-friendly layout Ideal for IoT, automation, robotics, smart home, and DIY electronics 🔹 Technical Specifications Microcontroller: ESP32 CPU: Dual-core Tensilica LX6, up to 240 MHz Flash Memory: 4 MB (typical, may vary by batch) SRAM: 520 KB Wireless Connectivity: WiFi: 2.4 GHz, 802.11 b/g/n Bluetooth: v4.2, Classic + BLE USB Interface: USB Type-C USB-to-Serial Chip: CH340C Operating Voltage: 3.3 V Input Voltage: 5 V via USB Logic Level: 3.3 V GPIO Pins: 30+ multifunction pins Peripherals: ADC, DAC, PWM, UART, SPI, I2C, I2S Clock Frequency: Up to 240 MHz Programming Support: Arduino IDE, ESP-IDF, MicroPython Onboard Components: Reset & Boot buttons, voltage regulator, status LEDs Form Factor: Standard ESP32 Dev Board size 🔹 Applications Internet of Things (IoT) projects Home and industrial automation Smart home devices Robotics and motor control Wireless sensor networks Web servers and cloud-connected devices Educational and training projects DIY electronics and prototyping 🔹 Package Contents 1 × ESP32 Development Board with WiFi & Bluetooth (CH340C, USB Type-C)
Type-C 3S 4A 18650 Lithium Battery Charger Module | USB-C Step-Up Boost Charging Board for Li-ion
[Li-ion Rechargeable Battery Charger, Step UP Buck Converter] The 3S Type-C Charging Module Battery Charger Board is a compact and highly efficient solution for charging 18650 lithium-ion and Li-Po polymer battery packs. Designed specifically for 3S battery configurations (12.6V charging voltage), this module integrates a USB Type-C input and a high-frequency step-up (boost) circuit, making it ideal for modern portable power applications. With multiple current variants available (1A / 2A / 4A), the module offers flexibility for different power requirements. Its high switching frequency up to 1MHz ensures fast response, stable performance, and compact PCB size. The intelligent quasi-CV (constant voltage) mode compensates for voltage loss caused by internal battery resistance and PCB trace resistance, ensuring accurate and efficient charging. This charging board also features automatic recharge capability, restarting charging when battery voltage drops, and excellent adaptability to power sources with limited driving capability. Built-in protection functions safeguard the battery and connected devices from over-voltage, under-voltage, and short-circuit conditions, enhancing safety and battery lifespan. Thanks to its wide compatibility and reliable performance, this module is suitable for a broad range of applications including DIY power banks, portable electronics, solar charging systems, audio equipment, POS machines, electric fans, Bluetooth devices, and other Type-C powered equipment. ⭐ Key Features ✔ USB Type-C Input for convenient and modern charging ✔ Supports 3S Lithium Battery Packs (12.6V charging voltage) ✔ Multiple Charging Current Options: 0.37A (1A version) 0.74A (2A version) 1.48A (4A version) ✔ High Switching Frequency up to 1MHz for stable and efficient operation ✔ Quasi-CV Charging Mode compensates voltage loss ✔ Automatic Recharge Function ✔ Built-in Protection: Over-voltage, low-voltage, short-circuit ✔ Compact design, easy integration into DIY projects 🔧 Technical Specifications Battery Configuration: 3S lithium battery Supported Batteries: 18650 Li-ion / Li-Po polymer Input Voltage: DC 3–6V (Recommended: 3.7V / 5V) Input Current: Up to 4A (4A version) Charging Voltage: 12.6V Charging Current: 0.37A (1A version) 0.74A (2A version) 1.48A (4A version) Switching Frequency: Up to 1MHz Protection Functions: Over-voltage, under-voltage, short-circuit 🎯 Applications DIY power banks 18650 lithium battery packs Mobile phones & portable devices Bluetooth speakers & audio equipment Solar charging systems POS machines Cameras, MP3/MP4 players Game consoles & notebooks Type-C powered electronics 📦 Package Includes 1 × 3S Type-C Charging Module Battery Charging Board 4A Version Please note: Image Only for representation purposes. Actual products may vary as per available stock.
PD65W Fast Charging Adapter Power Banks Module USB-C PD 65W
[Li-ion Rechargeable Battery Charger, Step UP Buck Converter] 📝 Description Upgrade your power projects with this PD65W Fast Charging Adapter Module, engineered to deliver USB-C Power Delivery up to 65W.This module provides stable, intelligent, and ultra-fast charging for smartphones, laptops, tablets, and Type-C gadgets. Featuring a PD standard protocol board, it supports multiple voltage profiles such as 5V, 9V, 12V, 15V, and 20V, making it ideal for DIY fast chargers, custom power banks, repair work, or integrating PD into your electronic builds. Built with premium components, over-voltage, over-current, temperature protection, and high-efficiency power conversion, this module delivers reliable, safe performance for all your USB-C PD applications. Perfect for makers, technicians, hobbyists, and product developers. ⭐ Key Features ✔ 65W USB-C Power Delivery — Supports ultra-fast charging for smartphones, tablets, laptops, and Type-C devices ✔ Multi-Voltage PD Profiles — Automatically negotiates 5V / 9V / 12V / 15V / 20V depending on connected device ✔ High-Efficiency Power Conversion — Stable output with low heat generation and fast response ✔ Built-In Safety Protections — Over-voltage, over-current, short-circuit and thermal protection ensure reliable operation ✔ Compact Size for Easy Integration — Fits perfectly in DIY chargers, power banks, docking stations, and custom electronics ✔ Plug-and-Play Operation — Simple wiring and automatic PD negotiation ✔ Ideal for Makers & Technicians — Great for DIY projects, repairs, and upgrading existing charging systems 🔧 Technical Specifications Input Voltage: Operates from 8V to 32V, compatible with various power sources. Output Power: Up to 65W (via USB-C) Supported PD Voltages: 5V/9V/12V/15V/20V Protocol: USB Power Delivery (PD) Efficiency: High (depends on input/output profile) Protection Features: Over-voltage protection/Over-current protection/Short-circuit protection/Thermal protection Application: DIY chargers, fast-charging adapters, power banks, docking stations, electronics projects 📦 Package Includes 1 × PD65W Fast Charging Adapter Module Standard Board
7S 20A BMS for 18650 Lithium-Ion Battery Pack – Protection Board with Connector
[Lithium Battery Protection Board] The BMS NMC 7S 20A Same Port is an advanced Battery Management System designed for high-performance 25.9V lithium NMC battery packs. Engineered with integrated protection features and a compact PCB layout, this BMS offers robust electrical safety while minimizing design complexity with its single port for both charging and discharging. This Data sheet is for Lichtronics 7S 20A NMC PCM/BMS Charging Voltage -DC:29.4-30V CC/CV Max continuous charging current – 20A Over charge detection voltage – 4.25±0.05V Over discharge detection voltage – 2.8±0.08V Over current detection current – 40A Operating Temperature -45°C –+65°C Storage Temperature -45°C — +85°C Product Data Sheet Key Features Same Port Design: Combines charging and discharging through a single port for streamlined connections. 20A Continuous Discharge: Supports mid-range power devices with stable performance. Multiple Safety Protections: Overcharge Protection Over-discharge Protection Overcurrent & Short Circuit Cut-off Temperature Detection Passive Balancing: Ensures equal charge across cells for longer battery life. Compact and Lightweight Design: Ideal for tight enclosures or portable builds. Connector Included: Easily connect to standard 7S battery configurations. Technical Specifications Specification Details Battery Chemistry Lithium NMC (3.7V/cell) Configuration 7S (7 Cells in Series) Nominal Voltage 25.9V Charge Cut-off Voltage 29.4V (4.2V per cell) Discharge Cut-off ~17.5V (2.5V per cell) Max Continuous Current 20A Port Type Same port for charge/discharge PCB Size Compact footprint Balance Current 30-60 mA Applications Electric Bikes & Scooters Solar Lighting & Backup Power Portable DIY Power Systems Battery Replacements & Packs Energy Storage & IoT Solutions The PCM NMC 07S/20A SAME PORT (SLCT) is a Protection Circuit Module (PCM) designed for lithium nickel manganese cobalt (NMC) battery packs configured in a 7-series (07S) setup. This module provides overcharge, over-discharge, overcurrent, and short-circuit protection to safeguard the battery and enhance its lifespan. It is rated for a maximum continuous current of 20A, allowing higher current flow for larger applications. The "SAME PORT" feature suggests that both charging and discharging can occur through the same port, simplifying the battery management system. The "SLCT" (selectable) feature likely refers to adjustable settings for specific battery configurations or protections. 📦 Package Includes 1 × 7S 20A BMS Protection Board (with connector)
500mAh 3.7V Single Cell Rechargeable LiPo Battery (HCY-602530)
[LiPo Cell] 500mAh Rechargeable 3.7v LiPo Battery The 600mAh Rechargeable 3.7V LiPo Battery is a compact and high-performance power source designed for a wide range of DIY electronics, robotics, and wearable projects. With a nominal voltage of 3.7V and capacity of 500mAh, this 1S lithium polymer battery delivers a reliable and consistent power output for your low-to-medium power applications. Its lightweight and slim profile make it ideal for portable gadgets, RC toys, sensors, and IoT devices that require stable energy without adding bulk. One of the key advantages of this battery is its long-lasting runtime when used with efficient electronics. For example, if a device consumes an average current of just 2mA, the 600mAh capacity allows the battery to run for up to 300 hours (600mAh / 2mA) under ideal conditions. This impressive endurance highlights the battery’s suitability for long-duration tasks, especially in energy-conscious designs. With Witty Fox’s reputation for quality and durability, this LiPo battery is a dependable choice for both hobbyists and professionals looking for efficient power solutions. Features: High Capacity: 600mAh gives little devices a longer runtime. Consistent Performance: A nominal voltage of 3.7V guarantees stable output. It is rechargeable, so it can be used repeatedly for extended periods of time. Small Design: Elongated and light, ideal for projects with limited area Up to 300 hours of use at a current draw of 2mA is supported by smart power efficiency. Multiple embedded systems, microcontroller boards, and robotics kits can all be used with this versatile tool. Specifications: Specification Details Brand HCY Battery Type Lithium Polymer (LiPo) Nominal Voltage 3.7V Nominal Capacity 500mAh Battery Cell Configuration 1S (Single Cell) Rechargeable Yes Dimensions (LxWxH) 30 x 25 x 6 mm Weight 8 g(approx) Package Includes: 3.7V 500mAH (Lithium Polymer) Lipo Rechargeable Battery (Model – 602530)
Insulation Filament Tape 25mm 50 meters
[Filament Tape] 🧵 Insulation Filament Tape 25mm × 50 Meter High Strength Reinforced Adhesive Tape High Tensile Strength • Strong Adhesive • Tear Resistant • Ideal for Electrical & Industrial Applications The Insulation Filament Tape (25mm × 50 Meter) is a premium-quality, filament-reinforced adhesive tape designed for applications requiring exceptional strength, durability, and reliable adhesion. Reinforced with cross-woven fiberglass filaments, this tape offers excellent tensile strength, making it ideal for bundling, securing, reinforcing, and insulating cables, cartons, pipes, and various industrial components. Its pressure-sensitive adhesive ensures a firm bond on a wide range of surfaces while maintaining excellent resistance to tearing, stretching, and wear. The tape is widely used in electrical work, packaging, logistics, manufacturing, automotive industries, and general repair applications. With a 25mm width and 50-meter roll length, this tape provides long-lasting performance for both professional and DIY use. ⭐ Features Premium quality filament-reinforced adhesive tape Strong pressure-sensitive adhesive High tensile strength for heavy-duty applications Cross-woven fiberglass reinforcement for extra durability Excellent tear and stretch resistance Reliable adhesion on multiple surfaces Suitable for electrical insulation and cable bundling Easy to apply and remove without splitting Ideal for industrial, commercial, and home use Long-lasting adhesive performance 📋 Technical Specifications Product Type: Filament Reinforced Adhesive Tape Tape Width: 25mm Tape Length: 50 Meter Tape Type: Cross Filament Reinforced Backing Material: Reinforced Fiberglass Filament Adhesive Type: Pressure Sensitive Color: Transparent / Clear (May vary by batch) Tear Resistance: High Tensile Strength: High Application Temperature: Suitable for general industrial use Application: Insulation, Bundling, Packaging, Reinforcement 🔧 Applications Suitable for: Electrical Insulation Cable Bundling Wire Harnessing Carton Sealing Heavy-Duty Packaging Shipping & Logistics Pipe Wrapping Industrial Assembly Appliance Manufacturing Automotive Wiring Warehouse Packaging Repair & Maintenance DIY Projects General Industrial Use 📦 Package Includes 1 × Insulation Filament Tape (25mm × 50 Meter) ⚠️ Note Image shown is for reference only. Product color or branding may vary depending on the manufacturing batch. Ensure the application surface is clean, dry, and free from dust or oil for maximum adhesion.
ESP32 38-Pin Development Board – IoT Microcontroller with WiFi & Bluetooth
[ESP Modules] Description The ESP32 38-Pin Development Board is a versatile and cost-effective microcontroller platform perfect for a wide range of IoT, automation, and wireless communication projects. Powered by the ESP32 SoC, this board offers integrated WiFi and Bluetooth (BLE) capabilities, making it ideal for developing smart home devices, industrial control systems, robotics, and DIY electronics. For the best IoT experience, you can pair this board with our LoRa SX1278 Module for long-range communication or integrate it with our 0.96-inch OLED Display for real-time data display. Need reliable power control? Combine it with our 2-Channel Relay Module with Optocoupler for safe switching of external devices. Compatible with popular platforms like Arduino IDE, MicroPython, and PlatformIO, this ESP32 board is user-friendly for both beginners and professionals. The board features 38 GPIO pins, enabling you to connect a variety of sensors, actuators, and other peripherals—available in our IoT Components category. Key Features: ESP32 Dual-Core 32-bit LX6 Processor Built-in 2.4 GHz WiFi and Bluetooth 4.2 (BLE) 38 GPIO Pins supporting multiple digital and analog functions Interfaces: UART, SPI, I2C, PWM, ADC, DAC Ultra-low power operation modes ideal for battery-powered IoT devices Supports Arduino IDE, MicroPython, and other environments Onboard micro-USB connector for easy power and programming Reset and boot buttons for firmware flashing Breadboard-friendly form factor Applications: IoT development projects Smart home automation – compatible with Vihaan IoT Gateway Solutions Wireless data logging systems Robotics and drone controllers Industrial monitoring devices Sensor networks – connect with our DHT11/DHT22 Temperature Sensors Specifications: Chipset: ESP32 (Generic) Operating Voltage: 3.3V (5V tolerant inputs) Flash Memory: 4MB Connectivity: WiFi IEEE 802.11 b/g/n, Bluetooth 4.2 BLE Interfaces: GPIO, UART, SPI, I2C, ADC, DAC, PWM USB Interface: Micro USB Form Factor: 38-Pin, breadboard compatible Package Includes: 1 x ESP32 38-Pin Generic Development Board
GL-12 840 Points Solderless Breadboard
[Breadboard and Zero PCBs] A GL-12 840 Points Solderless Breadboard is an invaluable tool for experimenting with circuit designs whether in the R&D or university lab. A breadboard is used to make up temporary circuits for testing or to try out an idea. No soldering is required so it is easy to change connections and replace components. Parts will not be damaged so they will be available for re-use afterward. 840 Tie points – 128 Groups of 5 connected terminals, 8 Bus of 25 connected terminals Reusable for fast build a prototype of an electronic circuit – will accept transistors, diodes, LEDs, resistors, capacitors and virtually all types of components – No soldering required – Can modify or revise the circuits easily Fit for jumper wire of 0.8mm diameter – Standard 2.54mm hole spacing Adhesive sheet on the back side of the board – Multiple breadboards can be spliced together too. Features: 100% brand new and high quality Practical and useful Solderless breadboard with 840 points Completely reusable and have a self-adhesive back Easy component placement Package Includes: 1 x GL-12 840 Points Solderless Breadboard
JIABAIDA (JBD) NMC 10S 36V 20A Battery Management System
[Lithium Battery Protection Board] The JIABAIDA (JBD) 10S 37V 20A Battery Management System (BMS) is an advanced electronic module designed to protect and manage 10S lithium-ion battery packs using NMC chemistry. It ensures safe operation by continuously monitoring voltage, current, and temperature. In addition, the BMS includes cell balancing functionality, which helps maintain equal voltage across all cells. As a result, battery performance improves and lifespan increases. Moreover, the system features multiple protection mechanisms, including overcharge, over-discharge, overcurrent, and short-circuit protection. Therefore, it helps prevent battery damage and ensures reliable operation. Because of its compact design and accurate monitoring, this BMS is suitable for electric bikes, battery packs, solar storage systems, and portable power applications. 🔹 Key Features Supports 10S Li-ion (NMC) battery packs 20A continuous discharge current Built-in cell balancing function High-accuracy voltage monitoring Temperature monitoring support Multiple protection systems Stable and reliable performance Suitable for DIY and industrial use 🔹 Protection Functions Overcharge protection Over-discharge protection Overcurrent protection Short-circuit protection Temperature protection 🔹 Technical Specifications Parameter Specification Brand JIABAIDA (JBD) Battery Type Li-ion (NMC) Battery Configuration 10S Nominal Voltage 37V Max Continuous Current 20A Cell Voltage Range 0V – 4.2V Temperature Range -40°C to 85°C Voltage Balance Accuracy ±5mV Current Accuracy ±50mA 🔹 Applications Electric bikes (E-bike) DIY battery packs Solar energy storage systems Portable power systems Electric scooters Backup power solutions 🔹 Package Includes 1 × JBD 10S 37V 20A Battery Management System (BMS)
5V 2.4A Lithium Battery Digital Display Charging Module with Dual USB Power Bank Module
[Lithium Battery Protection Board] Dual USB Output • LED Battery Display • Built-in Protection • DIY Power Bank Module The Dual USB 5V Power Bank Charging Module is a compact and feature-rich charging and protection board designed for building custom power banks using 3.7V Lithium-Ion or Lithium Polymer batteries. Supporting both USB Type-C and Micro USB charging inputs, the module provides convenient charging compatibility while delivering stable 5V output through dual USB ports. Equipped with an intelligent boost converter, the module efficiently converts the battery voltage (3.0V–4.2V) into a regulated 5V output with a maximum output current of 2.4A, making it suitable for charging smartphones, tablets, Bluetooth devices, smartwatches, and other USB-powered electronics. The onboard digital LED display shows the battery level from 0% to 100% in real time and also indicates charging (IN) and discharging (OUT) status, allowing users to easily monitor battery capacity. Designed with multiple safety features including overcharge, over-discharge, over-current, short-circuit, and constant current protection, this module ensures safe and reliable operation. It also includes dedicated LED terminals for adding a flashlight, making it an ideal solution for DIY portable power bank project Note: This module is designed for single-cell (1S) 3.7V Lithium-Ion/Li-Po batteries connected in parallel only. Do not connect batteries in series, as doing so may permanently damage the module. ⭐ Features Supports USB Type-C and Micro USB charging input Dual USB output ports for charging two devices simultaneously Maximum output current up to 2.4A Intelligent 5V boost converter Real-time LED battery percentage display (0–100%) Charging and output status indicators Built-in flashlight LED connection High conversion efficiency Multiple protection circuits for safe operation Compact PCB design for DIY power bank projects 📋 Technical Specifications Product Type: Power Bank Charging & Protection Module Battery Type: Single Cell (1S) Lithium-Ion / Lithium Polymer Battery Voltage: 3.0V–4.2V DC Charging Input: USB Type-C & Micro USB Input Voltage: 5V DC USB Output Ports: 2 Output Voltage: 5V DC Maximum Output Current: 2.4A Display Type: Digital LED Battery Percentage Display Battery Indicator: 0–100% Status Indicators: Charging (IN) / Output (OUT) Protection Functions: Overcharge Protection Over-discharge Protection Over-current Protection Short Circuit Protection Constant Current Charging LED Flashlight Output: Supported Module Dimensions: Approx. 65 × 25 × 10 mm 🔧 Applications Suitable for: DIY Power Banks 18650 Battery Packs Lithium Battery Projects Portable USB Chargers Emergency Power Supplies Mobile Phone Chargers Bluetooth Speaker Power Banks Raspberry Pi Power Supply Arduino Projects Portable Electronics DIY Electronics Battery Backup Systems 📦 Package Includes 1 × Dual USB 5V Type-C & Micro USB Power Bank Charging Module with LED Display ⚠️ Important Notes Connect the battery correctly: B+ to battery positive and B- to battery negative. Incorrect battery polarity may permanently damage the module. Use 3.7V Lithium-Ion or Li-Po batteries only. If using multiple cells, connect them only in parallel. Do not connect batteries in series, as this may cause overheating and permanent module failure. Quick Charge performance depends on the connected device, charging cable, charger, and battery quality.