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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
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Biped robot kit. Servos: 4 micro servos (legs/feet). MCU: Arduino Nano compatible. Sensors: ultrasonic + buzzer. Power: 5V (battery pack). Programming: Arduino IDE / block coding. Functions: walk/dance/avoid.
Thermaltake Core P6 Tempered Glass Snow White ATX Mid Tower Case
[PC Case] Thermaltake Core P6 TG Snow White Transformable Open-Frame Case Dual-configuration chassis that can be easily transformed between a closed-chassis and open-frame design. Equipped with three 4mm tempered glass panels and modular brackets. ⭐ Key Features - Transformable between closed case and wall-mountable open frame - Rotatable PCI-E slots for horizontal or vertical graphics card displays - PSU cover and cable management shroud included - Magnetic dust filters on top, bottom, and side 📋 Technical Specifications - Dimensions: 565 x 255 x 530 mm - Net Weight: 17.84 kg - Front I/O: 1x Type-C, 2x USB 3.0, 2x USB 2.0 📦 Package Includes - 1 x Thermaltake Core P6 TG Snow White Chassis - 1 x Riser Cable Mount Bracket
Coco Sports Rampage Panoramic Tempered Glass Gaming PC Case
[PC Case] Coco Sports Rampage Panoramic Tempered Glass ATX Gaming Case Pillarless aquarium-style panoramic tempered glass PC case pre-fitted with 4x hydraulic bearing ARGB fans. Features full bottom-to-top vertical airflow and dual chamber cable routing. ⭐ Key Features - 270-degree pillarless dual tempered glass view - Pre-installed with 4x 120mm ARGB rainbow fans with LED control button - Dual-chamber layout hides power supply and SATA storage - Supports GPUs up to 380mm in length 📋 Technical Specifications - Form Factor: ATX, M-ATX, Mini-ITX - Drive Bays: 2x 3.5" HDD, 2x 2.5" SSD - Expansion Slots: 7 - Front I/O: 1x USB 3.0, 2x USB 2.0, Audio In/Out 📦 Package Includes - 1 x Coco Sports Rampage Gaming Case - 4 x 120mm ARGB Fans pre-installed
Antec Constellation C8 Black E-ATX Full Tower Case
[PC Case] Antec Constellation C8 Dual-Chamber Full Tower E-ATX PC Case Flagship seamless glass case with dual 360mm radiator support, 0.8mm+1.0mm thick steel structure, and extensive vertical airflow channels. ⭐ Key Features - Edge-to-edge seamless tempered glass without obstructive corner pillars - Bottom-to-top vertical thermal chimney layout - Supports thick 360mm radiators at top, bottom, and side simultaneously - Tool-free quick release panels 📋 Technical Specifications - Motherboard: E-ATX, ATX, M-ATX, ITX - Dimensions: 464 x 303 x 476 mm - Front I/O: 1x USB 3.2 Gen 2 Type-C, 2x USB 3.0, Audio 📦 Package Includes - 1 x Antec C8 Black Full Tower Case
Out of stockSelf-Adhesive Rubber Feet (50 pc, mixed)
Black silicone bumpers for case bottom, anti-slip, mixed sizes (8 / 10 / 12 mm).
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.
Type-C USB Ultrasonic Mist Maker Humidifier – 5V Atomizer Module with 108KHz Disc & PCB
[Ultrasonic Sensor] The Type-C USB Ultrasonic Mist Maker Humidifier Module is a compact and efficient atomization device designed for humidification and mist generation applications. It uses advanced ultrasonic technology to produce a fine and continuous mist, helping improve air moisture and indoor comfort. In addition, the module operates using a 108KHz high-frequency ceramic atomizer disc, which ensures stable mist generation with low noise and efficient performance. As a result, it is suitable for personal humidifiers, aroma diffusers, facial beauty equipment, and DIY mist projects. Because of its convenient Type-C USB power interface, the module can be powered easily using USB adapters, power banks, laptops, and other 5V USB power sources. Furthermore, the compact PCB design allows easy integration into portable and custom-built humidifier systems. The module also features low power consumption and reliable operation for continuous use. Moreover, the built-in safety protection helps automatically stop operation when the water level becomes too low. This ultrasonic mist maker is widely used in humidifiers, mist generators, aromatherapy devices, beauty care equipment, and medical atomization systems. 🔹 Key Features Ultrasonic mist generation technology 108KHz ceramic atomizer disc Convenient Type-C USB power input Fine and continuous mist output Compact and lightweight design Low power consumption Quiet operation Automatic low water protection Suitable for DIY humidifier projects 🔹 Technical Specifications Product Type: Ultrasonic Mist Maker Module Input Voltage: 5V DC Power Interface: Type-C USB Operating Frequency: 108KHz Atomization Mode: Continuous Power Consumption: Less than 3W Mist Output: Adjustable Operating Temperature: 5°C to 45°C Storage Temperature: -10°C to 60°C Material: PCB + Ceramic Atomization Film Humidity Range: Non-Condensing Application Type: Humidifier / Mist Generator 🔹 Applications This ultrasonic mist maker module is suitable for many applications, including: Portable humidifiers DIY mist generators Aroma diffusers Facial beauty equipment Medical liquid atomizers Air moisture control systems Decorative mist projects 🔹 Package Includes 1 × Humidifier Driver Board 1 × 16mm Atomizer Plate 1 × Cotton Stick Stand 1 × Cotton Stick
Wuzhi Audio ZK-MT21 Bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Tone Board Bass AMP AUX
[Amplifier Board] Tip: Only when the audio input is sufficient and the power supply voltage/current is sufficient, there will be sufficient output power. The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power. Please make sure that the power of the adapter power supply is greater than the actual working power of the amplifier! You can check our others amplifier boards here. FAQ: 1. How to choose a power supply? The power supply with the board is very important. The ripple of the selected power supply must be small. A power supply with a large ripple will cause the bottom noise of the power amplifier board to become larger and there will be current noise. The higher the voltage, the greater the current, and the more adequate the output power. The power supply is 12V1A and can be equipped with 3-4inch speakers. If it is above 19V 5A, there is no problem with 8-10 inches, and the power supply must be highly regarded. If the voltage is too low, the amplified sound will easily cause sound distortion. If the current is too low, the speaker will pull down the voltage, which will result in abnormal operation or poor sound quality. It is recommended to use a power supply of 18V19V24V with a current above 5A. If you only have 9V12V or 1A 2A power supply, it can be used but the power is low. When the volume is selected close to the maximum, it may be distorted and affect the sound quality. 2. How to choose a speaker? Regarding speaker types: commonly used speakers are generally 4-8 ohms, which can be used. The left and right channel speakers need to be connected to full-range speakers or mid- to high-frequency speakers, and the power is between 20W-100W. The subwoofer speaker cannot be connected to an ordinary speaker, and a speaker with a subwoofer speaker must be connected with a power between 20-100. The dive frequency of the subwoofer speaker must be at least 50 Hz. If your speaker has a low power, such as between 20W-50W, it can be used. You need a lower power supply voltage to prevent the speaker from burning after amplifying the sound. For example, choose a power supply below 15V. If you are a 50W-100W speaker, don't worry about the problem of speaker burnout. You can choose a 12-24V power supply. The higher the selected voltage, the greater the sound or power that can be output. The speaker power should not exceed 100W, otherwise it will affect the sound quality. 3. Introduction to audio input mode This audio power amplifier module has two audio input methods: one is Bluetooth input, the other is AUX input, Bluetooth mode is preferred. Bluetooth can be connected in any mode. As long as the Bluetooth connection is successful, it is in Bluetooth mode, and the Bluetooth mode supports automatic connection back. When Bluetooth is not connected, AUX plug-in is in AUX mode. It should be note that when using AUX mode, you need to confirm that the Bluetooth connection of this module has been disconnected. 4. How to adjust the main volume? The MAIN—VOLUME knob adjusts the main volume. Right-handed main volume increases, left-handed main volume decreases. The main volume affects the volume of the left and right channels and the subwoofer. 5. How to adjust the left and right channel high and low sounds? The R&L CHANNEL—BASS knob controls the bass, right-turning bass enhancement, left-turning bass attenuation. When the knob is in the rightmost position, the bass is neither enhanced nor attenuated. The R&L CHANNEL—TREBLE knob controls the treble, the right-handed treble is enhanced, and the left-handed treble is attenuated. When the knob is in the middle position, the high pitch is neither enhanced nor attenuated. Note when adjusting the treble and bass: when the treble or bass is adjusted to the maximum by turning right, if the sound is distorted, the gain of the treble or bass adjustment is too large. You need to turn the treble or bass knob to the left to lower the gain or turn the right Turn the MAIN-VOLUME knob to the left to reduce the total volume. 6. How to adjust the subwoofer? SUBWOOFER—VOLUME knob is used to control the volume of the subwoofer. Right-handed volume increases, and left-handed volume decreases. The SUBWOOFER—FREQ knob controls the cutoff frequency of the subwoofer. The right-hand frequency increases, and the left-hand frequency decreases. The frequency adjustment range is 20HZ-200HZ. 7. The voice is small and okay. When the voice becomes louder, the voice becomes muddy? The sound is distorted, please turn down the total volume or change to a higher voltage adapter power supply. 8. The sound is small, but when the sound becomes louder, the sound freezes? If the input power is insufficient, the power supply itself is protected against intermittent power failure. Please replace it with a higher-power power supply; or if the power is too large, the power amplifier board will generate serious heat and thermal protection has occurred. Reduce power usage or enhance heat dissipation. 9. What factors are related to the sound quality? The sound quality is not only related to the power amplifier module, but also related to the power supply, sound source, and the entire audio system. Basically, every aspect of the audio system will affect the sound quality, among which the main links are the audio transmission line, the audio power supply, the tone circuit, the power amplifier circuit, the speakers and the surrounding environment. The sound quality is the best only when the sound source, power supply, amplifier module and speakers are matched. Feature: Product Name: 2.1 channel audio amplifier module Product Model: ZK-MT21 Bluetooth Version: 5.0 (no shielding, 15 meters) Input Sensitivity: 500mV Audio Input: AUX + Bluetooth Channel: 2.1 Chip Solution: Domestic power amplifier chip Power Range: DC 12-20 V / 5A above (Do not connect to 24V battery pack) Adapter Speaker: 20-100 W, 4-8 Ω Output Power: Left and right channels <50W, Subwoofer <100W Protection Mechanism: Anti reverse connection. Overheat. Overcurrent. Short circuit Product Dimensions: 93mm*90mm*22mm Package Weight : about 185g (packaging) Package Includes: 1 x ZK-MT21 bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Tone Board Bass AMP AUX
16A 250V AC DPST ON-OFF Rocker Switch
[Mechanical Switches] This is a basic DPST ON-OFF Rocker Switch for your projects. No screws required, it simply clips into place. This is a two-pin switch that is easy to use, simply cut one of the two power wires and solder each of the ends to the unit. This 16A 250V AC DPST ON-OFF Rocker Switch is perfect for controlling power to electronic circuits, robots, etc. We have carefully selected the best On/Off Rocker Switch with a high load rating and the perfect size to for all general-purpose On/Off applications. This rocker switch has two positions – one on position and another off position. The rocker switch stays in the one till it is pressed and changed to the other position. It has two large pins on the backside to which wires can be soldered and connected to your circuit. The On/Off Rocker Switch is the simplest and easiest power control switch for your project. It comes with tabs on the top and bottom which secure it onto an enclosure without the need for any screws. On and Off positions are clearly marked which help users identify the current switch position during usage. This switch is great to turn on/off and control DC Motors in Robotics, Car and Motorcycle DC Motors, DC Motors in Industrial Machines, Water Dispensers, etc. We have sourced the best switch with a high load rating of 16A at 250VAC which should be suitable for most applications. Please note: 1. Switching Mode: ON-OFF 2. Structure: DPST Features: Positions Marked on the rocker: I, O (On and Off) for easy identification Long Switching Life: 50000-100000 cycles Easy installation, No Screws or Nuts required Used widely for on/off power control, car, motorcycle, boat, some machines, water dispenser, etc. Package Includes: 1 x 16A 250V AC DPST ON-OFF Rocker Switch
Out of stock32700 32650 3.2V Rechargeable 6000mAh LifePO4 Battery Cell for EV
[LiFePO4 Battery Cell] 32700 32650 3.2 V 6000 MAH LiFePO4 Battery This Standard 32700 32650 3.2 V Rechargeable 6000mAh LifePO4 Battery Cell is a single cell powerful battery cell with a massive 6000 mAh capacity. This LifePO4 battery is very convenient to install in your project where 3.2 Volt with high capacity is needed. The Standard 6000mAh 3.2V Rechargeable LifePO4 Battery is a source of power for various portable devices including flashlights, hobby transmitters, and receivers, etc. This Battery can be the best Replacement to the normal Non-Rechargeable AA Battery used in many applications such as in RC Transmitter/Reciever Remote, which can make your flight driving experience very cost-effective and efficient in terms of power output than that of conventional AA batteries. IMPORTANT: Never completely discharge the LifePO4 battery ( below 2.5V under load ). Charge fully to 4.2V before first use. Never attach any metal moving part like a magnet to the battery contact. Never use force to install (insert) LifePO4 battery. Do not use old and new battery cells together. Use only a high-quality battery charger. Do not expose to heat. Do not short (connect) positive (top), and negative (bottom) battery terminals (contacts). Keep battery that is not in use in the plastic holder (or any insulating [plastic] container). Do not charge the battery over 4.22V (another reason to use a high-quality battery charger). Don’t charge unattended. Do not store your LifePO4 batteries fully charged (for an extended period of time). Store in a cold and dry place at approximately 3.7V (storage charge). After the battery is discharged-don’t leave it discharged, charge it as soon as possible. FEATURES: Shape: Cylindrical Battery Battery Type: Lithium-Ion Rechargeable Battery High performance and capacity Flat top to suit many devices fitting PACKAGE INCLUDES: 1 x 32700 or 32650 3.2 V Rechargeable 6000mAh LifePO4 Battery Cell for EV. Note: Color and Print on the Cells may vary with every lot. We ship it randomly
DC5V Humidifier USB Spray Module DIY Incubation Experiment Equipm 108KHz(mist maker)
[Ultrasonic Sensor] Description This DC Ultrasonic Humidifiers Power Circuit Board with Atomizing Chip Moisture Film Humidification atomization machine consists of an atomization plate tablet with a diameter of 20mm. This Ultrasonic Humidifier Piezoelectric Transmitter module works on the principle of cavitation produced by sound waves. Just provide the DC 3V to 5V power supply it will turn into a mini ultrasonic atomizer. As sound waves contain compression and rarefaction. Due to extremely rapid movement, water droplets can no longer sustain their liquid state and get converted into vapor immediately. This vibration is produced by a piezoelectric filament. Tags, USB Humidifier Atomization Driver Board PCB Circuit Board 5V Spray Incubation, Tags, OEM/ODM Available Mini Humidifier USB spray module humidifier pcb circuit board for DIY kit Incubation Experiment Equipment, USB Humidifier Atomization Driver Board PCB Circuit Board 5V Spray Incubation, 5V DIY Ultrasonic Piezoelectric Humidifier Moisture Atomizing Chip Mist maker circuit board. Features Come with a driver Power-ON trigger work 108KHz high-frequency oscillator Micron level aperture The glazed surface of the atomized sheet Features/Specs: Product Name: 108KHz 20mm USB Humidifier Work Voltage: DC 4.5V~5.0V Work Power:2W Work Frequency:108KHz(+/-3KHz) Power Type: Female USB Socket Diameter without rubber ring:16mm Diameter with rubber ring:20mm Spray Diameter:5um Spray Hole:740 holes Spray speed:50ml/h Work Temperature:0℃ ~ 85℃ Work Humidity:10%~90%RH Driver Size:35*19*15mm Length: 35 mm Width: 19 mm Height: 15 mm Weight: 10 gm Application: Humidifier | mist maker Beauty care for facial massager Medical liquid atomizing Equipment Package Includes: 1pc x Humidifier Driver Bord 1pc x 16mm Atomizer Plate 1pc x Cotton Stick Stand 1pc x Cotton Stick
Out of stockHongli 18650 3.7V 3000mAh Lithium-Ion Rechargeable Cell
[Lithium Battery Cell] HONGLI Lithium-ion 18650 3.7V 3000mAh Battery Cell This Li-Ion 18650 3.7V 3000MAH Battery gives value for your money. It is a single cell, compact, and powerful battery cell with 3000 mAh capacity(Not actual capacity). It is very convenient to install in your project to fulfill a 3.7 Volt requirement with high capacity. The battery terminals can use in any compatible battery adapter/holder or it can be permanently soldered to your application’s power source wires. This is copy cells capacity may be different. Important: Never completely discharge the Li-ion battery ( below 2.5V under load ). Charge fully to 4.2V before first use. Never attach any metal moving part |magnet| to the top-positive or the bottom-negative battery contact. Never use force to install (insert) Li-ion battery. Do not use old and new battery cells together. Use only a high-quality battery charger. Do not expose to heat. Do not short (connect) positive (top), and negative (bottom) battery terminals (contacts). Keep battery that is not in use in the plastic holder (or any insulating [plastic] container). Do not charge a battery over 4.22V (another reason to use a high-quality battery charger). Don’t charge unattended. Do not store your li-ion batteries fully charged (for an extended period of time). Store in cold and dry place at approximately 3.7V (storage charge). After the battery is discharged-don’t leave it discharged=>charge it as soon as possible Features/Specs: Manufacturer: HONGLI SUPPLY SOURCE TECHNOLOGY Battery Type: Lithium-Ion Battery Battery Model: 18650 Battery Voltage: 3.7V Full Charging voltage: 4.20V Battery Capacity: 3000 mAh Rechargeable: Yes PCB Protected Board: No Shape: Cylindrical Battery Dimensions in: mm Dia: 18mm Length: 65mm Weight: 39gm Application: Portable equipment: POS, Portable printer, handset. Medical instrument: B ultrasound, Ecg monitoring instrument Military equipment: IR telescope Consumer electronics:PDA,MID,laptop,emergency light power source power tool e-bicycle Industrial and commercial instrument: light power meter, Gas testing instruments, fusion splicer, flaw detector Electric toy:RC car/ boat/helicopter Package Includes: 1 x HONGLI Lithium-ion 18650 3.7V 3000mAh Battery Cell Note: Product Images are shown for illustrative purposes only and may differ from the actual product.
Out of stockPVC PLASTIC ENCLOSURE – 4″ X 4″
[PVC ENCLOSURE] This is a small size enclosure for all your project housing needs. Made from high quality plastic this enclosure is 4″ x 4″ x 2″ in size. Perfect for housing small sized PCBs and boards. Can be easily modified, cut, and drilled into with simple tools. It is light and yet quite strong and rugged. Perfect for housing small sized projects. Key Features: Outer Dimesnsions: 10 cm x 10 cm x 5 cm in size Colour: white Has 4 holes in bottom which help to mount the box on table or wall. Glossy white Finish with White Top and White Bottom Lid. The top panel has a flat display area, perfect for labels, silk screening, membrane keypads or easily machined. Designed for a comfortable fit into the user’s hand. Also suitable for surface use. Enclosure consists of a bottom piece and a lid which clips onto to each other through 4 screws (Provided inside). Application: Can be used to house DC Chargers, LED Drivers, General Purpose Boards, etc Can be easily modified, cut, and drilled into with simple tools. It is light and yet quite strong and rugged.Perfect for housing all small to medium sized projects.
Out of stockRocker switch 16A 250V SPDT 3PIN Red
[Mechanical Switches] The 16A 250V SPDT ON-OFF Rocker Switch with Light is the simplest and easiest power control switch for your project. It comes with tabs on the top and bottom which secure it onto an enclosure without the need for any screws. On and Off positions are clearly marked which helps users identify the current switch position during usage. The switch has a Tin built indicator light to show the On/Off Status of the Button. This switch is great to turn on/off and control DC Motors in Robotics, Car and Motorcycle DC Motors, DC Motors in Industrial Machines, Water Dispensers, etc. We have sourced the best switch with a high load rating of 16A at 250VAC which should be suitable for most applications. Switching Mode: ON-OFF Structure: SPDT Features: Positions Marked on the rocker: I, O for easy identification Long Switching Life: 50000-100000 cycles Easy installation, No Screws or Nuts required Used widely for on/off power control, car, motorcycle, boat, some machines, water dispenser, etc. Specifications: Switch type: Rocker switch Voltage: 250V Current: 16A Color: Red Led light: Red Structure: SPDT Pins: 3pin Weight: 6 Package Includes: 1 x 16A 250V SPDT ON-OFF Rocker Switch with Light
Out of stock6A 250V AC DPDT ON-OFF-ON 6 Pin Rocker Switch
[Mechanical Switches] This is a basic DPDT ON-OFF-ON Rocker Switch for your projects. No screws required, it simply clips into place. This is a two-pin switch that is easy to use, simply cut one of the two power wires and solder each of the ends to the unit. This 6A 250V AC DPDT ON-OFF-ON Rocker Switch is perfect for controlling power to electronic circuits, robots, etc. We have carefully selected the best On/Off Rocker Switch with a high load rating and the perfect size to for all general-purpose On/Off applications. This rocker switch has two positions – one on position and another off position. The rocker switch stays in the one till it is pressed and changed to the other position. In simple words, It is a simple push-switch, such as one for a doorbell, has one set of contacts and the on position is only momentary, as soon as you release the switch it goes back to off. This action is called push-to-make (push to close contacts). It has two large pins on the backside to which wires can be soldered and connected to your circuit. The On-Off-On Rocker Switch is the simplest and easiest power control switch for your project. It comes with tabs on the top and bottom which secure it onto an enclosure without the need for any screws. On and Off positions are clearly marked which help users identify the current switch position during usage. This switch is great to turn on/off and control DC Motors in Robotics, Car and Motorcycle DC Motors, DC Motors in Industrial Machines, Water Dispensers, etc. We have sourced the best switch with a high load rating of 16A at 250VAC which should be suitable for most applications. Please note: 1. Switching Mode: ON-OFF-ON 2. Structure: DPDT Features: Positions Marked on the rocker: I, O (On and Off) for easy identification Long Switching Life: 50000-100000 cycles Easy installation, No Screws or Nuts required Used widely for on/off power control, car, motorcycle, boat, some machines, water dispenser, etc. Package Includes: 1 x 16A 250V AC DPDT ON-OFF-ON Momentary Rocker Switch
Nano Board R3 with CH340 chip without USB Cable compatible with Arduino (Unsoldered)
[Arduino Boards] The Nano Board R3 with CH340 chip without USB Cable chipboard is based on the famous Arduino platform and does all the functions of Uno, but with a smaller footprint. The Nano Board R3 with CH340 chip without USB Cable is vital for your small project where you don’t need much of a pin-outs but the small size is very important to make it look good. This Nano equips a low-cost USB-Serial Chip that makes it less in price than Nano with FTDI USB-Serial Chip used on older versions of Arduino Nano. The Nano Arduino is a small, complete, and breadboard-friendly board based on the ATmega328 (Nano R3). It has more or less the same functionality of the Uno but in a different package. It lacks only a DC power jack and works with a Mini-B USB cable instead of a standard one. The Nano can be power via the mini-USB connection, 6-20V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). The power source is automatically selected to the highest voltage source. The size of Nano V3.0 with CH340 Chip is only 43 mm x 18 mm; it comes with 6 PWM I/O from the total of 14 digitals I/O, 8 analog inputs, 16Mhz clock speed and 32kB of flash memory. Note:- CH340 chip might not work directly with some PC/Laptop, you will need some ch340 drivers. This board comes with OLD BOOTLOADER buy it accordingly Features : 1 pair of TTL level serial transceiver ports RX / TX Using Atmel Atmega328P-AU MCU There is a bootloader installed in it Support USB download and Power Support for external 5V ~ 12V DC power supply It Supports power supply by 9V battery Support ISP download Automatic reset during program download. Power OK blue LED on the bottom. Green (TX), red (RX) and orange (L) LED. +5V to AREF jumper. Auto-sensing/switching power input. Small mini-B USB for programming and serial monitor. ICSP header for direct program download. Standard 0.1” spacing DIP (breadboard friendly). Manual reset switch. Package Includes : 1 x Nano Board R3 with CH340 chip without USB Cable compatible with Arduino (Unsoldered)
Potentiometer Knob 113 with Buffer (Pack of 2)
[Electronic Components, Potentiometer] Multi Colour Potentiometer Knob/Rotary Switch Cap for Knurled Potentiometer This potentiometer knob 113 provides a firm grip on the potentiometer stick, making controlling operation very convenient and easy. This knob comes with a translucent buffer to tighten the potentiometer stick with the knob. Features 1. Top Diameter: 16mm ( +/- 1mm ). 2. Bottom Diameter: 20mm ( +/- 1mm ). 3. Knob Height: 17mm ( +/- 1mm ). 4. Knob Internal Diameter: ~6mm.
Out of stockKnob-202 Multiple Colour Potentiometer Knob With Buffer(Pack of 2)
[Potentiometer] Multi Colour Potentiometer Knob/Rotary Switch Cap for Knurled Potentiometer This Potentiometer knob with buffer provides a firm grip on the potentiometer stick, making controlling operation very convenient and easy. This knob comes with a translucent buffer to tighten the potentiometer stick with the knob. Features 1. Top Diameter: 11mm ( +/- 1mm ). 2. Bottom Diameter: 15mm ( +/- 1mm ). 3. Knob Height: 17mm ( +/- 1mm ). 4. Knob Internal Diameter: ~6mm 5. Colour: Black and Green. Black and Grey. Black and Yellow. Black and Red.
Out of stockQuadcopter Drone Frame F450
[Drone Frame, Uncategorized] F 450 Quadcopter 4-Axis Strong Frame (Multicolour) Width: 450mm Height: 55mm Weight: 295g (without electronics) Material: Glass Fiber + Polyamide-Nylon Motor Mount Bolt Holes: 16/19mm Built from high-quality glass fibre and ultra-durable polyamide nylon. Arms are reinforced and much stronger to prevent and reduce breakage at hard landings. Integrated PCB connections for direct soldering your ESCs. Colored arms for orientation to keep you flying in the right direction. Large mounting tabs on main frame bottom plate for easy camera or other accessories mounting. Pre-threaded brass sleeves for all of the frame bolts. Easy assembly. Package includes : 1 x Top and Bottom with Integrated PCB. 2 x F450 arms Red 2 x F450 arms White 1 x Accessories set. This Q450 Quadcopter Frame is made from Glass Fiber which makes it tough and durable. They have the arms of ultra-durable Polyamide-Nylon which are the stronger molded arms having a very good thickness so no more arm breakage at the motor mounts on a hard landing. The arms have support ridges on them, which improves stability and provides faster forward flight.
Out of stockZP4510 P45 Water Level Sensor Float Control Switch
[Water Level Sensor] A float switch is a device used to sense the level of liquid within a tank, it may actuate a pump, an indicator, an alarm, or another device. A float switch is a device used to sense the level of liquid within a tank. The switch may actuate a pump, an indicator, an alarm, or another device. Use them with hydroponics, saltwater tank, freshwater tank, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, pumps, ponds, basement alarms, boats, air condition drain pans, pressure washers, carpet cleaning machine, reef aquarium, fluid control, ice machines, coffee pots, marine, automotive, automobiles, tropical fish tanks, evaporator coils, condensation line, in relays, or whatever your project may be. It can be easily converted from normally open to normally close by inverting the float. Note: because the current that the switch can carry is much little(0.5A), you must use a relay or contactor when it is connected by a load, relay and contactor are not included here. Specifications:- Cable Length: 30.5(cm) Maximum Load: 50 W Max Switching Voltage: 100V DC Minimum Voltage: 250V DC Maximum Switching Current: 0.5 A Max Load Current: 1.0 A Max Contact Resistance: 0.4 ΩTemp Rating: -20~ 80 degree Applications:- Household Equipment such as overhead water tanks, Water purifiers. Use them with hydroponics, saltwater tank, freshwater tank, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, or whatever your project may be. Up float switch Contains no mercury Product. How Magnetic Reed Liquid Level Sensors Work:- The purpose of a float switch is to open or close a circuit as the level of a liquid rises or falls. Most float switches are "normally closed," meaning the two wires coming from the top of the switch complete a circuit when the float is at its low point, resting on its bottom clip or stop (for example, when a tank is dry). Most float switches utilize a magnetic reed switch to open or close the circuit. The reed is encased in a glass tube, which is cemented into a plastic or stainless steel stem with epoxy. The illustration to the left demonstrates how a magnet can be used to open or close a circuit by moving it closer to or farther away from a reed switch. When the magnet comes close to the two contacts, they draw together and touch, allowing the current to pass through. When the magnet is moved away, the contacts demagnetize and separate, breaking the circuit. In a float switch, the magnetic reed switch is hermetically sealed in a stem, most often made from plastic or stainless steel. The float encases a sealed magnet, which moves up and down the length of the stem as a fluid level rises and falls. As the magnet passes by the contacts in the encased reed switch, they draw together and complete a circuit between the two lead wires. The operation shown can usually be reversed by removing the bottom clip from the switch, inverting the float, and replacing the clip. When this change is made, the switch circuit will be open when the float is resting on the bottom clip and closed when the float rises. Properly used, float switches can deliver millions of on/off cycles, for years of dependable operation. Failures are normally due to overloading, frequently caused by spiking voltage. Before designing a circuit that uses a float switch, be sure to read our Technical Page on Spiking Voltage & Float Switches. * Product Images are shown for illustrative purposes only and may differ from the actual products.