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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Force Pressure Sensor
Force-sensitive resistor, square 1.75×1.5 inch sensing area.
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.
TPA3116D2 XH-M543 120W Dual Channel High Power Original Digital Power Amplifier Board
[Amplifier Board] Build your own music system with 120 watts of stereo output. TPA3116D2 XH-M548 Dual Channel 120W Digital Power Amplifier Board is newly designed digital audio amplifier board with fine quality is practical to install and use also has good performance. It features high-efficiency class D audio power amplifier with the latest and original TPA3116D2 core technology the BTL bridge circuit is more efficient than before. This product uses the double power supply transformer with a dynamic power supply range from 12V to 24V with high efficiency small quiescent current. Additionally, it is equipped with Perfect protection functions like overvoltage protection and output current limit. Features: A strong TPA3116D2 chip is a digital power amplifier chip, with low idle loss characteristics, makes it work well and quickly. Onboard, front-facing IC to improve the input sensitivity, high-definition sound quality. It can be used for car vehicle computer speaker, family audio and video, and empty square. This product has the characteristics of loud sound, the capacitance is large, excellent sound quality. There is no solder joint on the back of the circuit board, the chip capacitors, and the solder board together, so there is no possibility of short circuit. Package Includes: 1 x TPA3116D2 XH-M543 120W Dual Channel High Power Digital Power Amplifier Board
XY-LPWM Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display Module
XY-LPWM Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display Module is a two-channel PWM signal generator. It has dedicated switches for adjusting the frequency and duty cycle separately. Using this module PWM output, frequency and duty cycle can be set as per requirements. Communication Standard: 9600 bps Data bits: 8 Stop bit: 1 Check digit: none Flow control: none Set the frequency of the PWM “F101”: Set the frequency to 101 Hz (001 to 999) “F1.05”: set the frequency of 1.05 kHz (1.00 ~ 9.99) “F10.5”: Set the frequency to 10.5kHz (10.0 ~ 99.9) “F1.0.5”: set the frequency of 105kHz (1.0.0 ~ 1.5.0) Set the PWM duty cycle “DXXX”: set the PWM duty cycle to XXX; (001 ~ 100) Such as D050, set the PWM duty cycle is 50% Read the set parameters Send a “read” string to read the set parameters. Set successfully return: DOWN; Setup failed to return: FALL. Application: This is used to drive a stepper motor driver’s square wave. Generate an adjustable pulse for MCU. Generate an adjustable pulse for controlling relative circuit (PWM adjust lightspeed, etc). Used as a square wave signal generator for experimental development and use. Parameter Settings: The module has 4 switches, two for frequency adjustment and two for duty cycle adjustment. This module can generate frequencies between 1Hz and 150kHz, with automatic switching for different ranges. Frequency is divided into four ranges, automatic switching: 1. XXX (no decimal point): the smallest unit is 1Hz, the value range of 1Hz ~ 999Hz; 2. X.XX (decimal point in the hundred) the smallest unit is 0.01Khz, the range of 1.00Khz ~ 9.99Khz; 3. XX.X (decimal point in ten): the smallest unit is 0.1Khz; value range of 10.0KHz ~ 99.9KHz 4. X.X.X (decimal point in ten and hundred): the smallest unit is 1Khz; value range 1KHz ~ 150KHz 5. e.g. frequency display: 100 indicates PWM output 100Hz pulse; 1.01 indicates PWM output 1.01K pulse; 54.1 indicates that the PWM output has a pulse of 54.1 kHz; 1.2.4 indicates that the PWM output is 124 kHz pulse; Duty cycle range: 1 – 100%. In case of a power outage or if the module is powered down, the parameters that are set are saved automatically, so there is no need to set the parameters again. Single touch for increasing or decreasing single unit and long press for fast increasing or decreasing. Features: LCD display for frequency and duty cycle. Wide frequency range. High precision. Serial communication(TTL based). Package Includes: 1 x XY-LPWM Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display Module.
4S 20A 18650 Lithium Battery Protection Board
[Lithium Battery Protection Board] The HXYP-4S-BM20 4S 20A Lithium Battery Protection Board (BMS) is a compact and reliable battery management system designed specifically for 3.7V lithium-ion 18650 rechargeable cells. This board provides complete protection and safe operation for building 4-cell (4S) battery packs with a nominal output voltage of up to 14.8V and a full charge voltage of 16.8V. Featuring a square, lightweight, and portable design, this protection board is easy to integrate into custom battery packs and compact enclosures. It allows you to connect four 18650 lithium cells simultaneously and ensures balanced and safe charging and discharging. The board includes multiple built-in safety protections such as over-charge protection, over-discharge protection, over-current protection, and short-circuit protection, helping to extend battery life and prevent damage or hazardous conditions. This module is ideal for use in DIY battery packs, power tools, solar storage systems, electric scooters, backup power supplies, robotics, and other lithium battery applications. ⭐ Key Features ✔ Designed for 4S (4-cell) 18650 lithium-ion battery packs ✔ Supports continuous current up to 15A ✔ Built-in protection for over-charge, over-discharge, over-current & short circuit ✔ Compact square PCB design – easy to install ✔ Low power consumption with ultra-low quiescent current ✔ Increases battery safety, reliability, and lifespan 🔧 Technical Specifications Model: HXYP-4S-BM20 Battery Type: 3.7V Li-ion (18650 rechargeable cells) Configuration: 4S (4 cells in series) Charging Voltage: 16.8V Maximum Continuous Current: 15A Maximum Peak Current: 20A Over-Charge Voltage: 4.25 ± 0.05V per cell Over-Discharge Voltage: 2.5 ± 0.05V per cell Quiescent Current: < 30 µA Board Size: 3.6 × 3.6 cm Country of Origin: China 🎯 Applications DIY lithium battery packs Power tools & backup batteries Solar energy storage systems Electric scooters & e-bikes Robotics & embedded systems UPS & portable power stations 🔹 Battery Connection Terminals on Board Usually marked as: B- → Battery Pack Negative (Cell 1 –) B1 → Connection between Cell 1 & Cell 2 B2 → Connection between Cell 2 & Cell 3 B3 → Connection between Cell 3 & Cell 4 B+ → Battery Pack Positive (Cell 4 +) 🔹 Output / Charge Terminals P- → Load / Charger Negative P+ → Load / Charger Positive (same as B+) 🔧 Step-by-Step Wiring Connect 4 cells in series: Cell order:Cell1 → Cell2 → Cell3 → Cell4 Then wire as: Cell1 negative → B- Cell1 positive / Cell2 negative → B1 Cell2 positive / Cell3 negative → B2 Cell3 positive / Cell4 negative → B3 Cell4 positive → B+ For charging & discharging: Charger / Load positive → P+ (or B+) Charger / Load negative → P- ⚠️ Safety Tips Always connect balance wires before main power wires Use proper insulated wires and nickel strips Do not short any terminals Use a 16.8V Li-ion charger for 4S packs Ensure BMS current rating matches your load 📦 Package Includes 1 × -4S-BM20 4S 20A Lithium Battery Protection Board (BMS) * Product Images are shown for illustrative purposes only and may differ from actual product.
Out of stock2 inch 15 Watt 3-4 Ohm Speaker 53mm Diameter good Quality
[Speakers] Description This is a general-purpose 3-4 Ohm 15 Watt Speaker that can be used for a variety of audio projects. It has a balanced frequency response and is extremely efficient. Excellent high-frequency response. It is a type of transducer that converts electromagnetic energy into sound waves. It converts analog signal inputs from computers or audio players into sound waves. Because of its small size, it can be used in a variety of applications where space is limited. It can be used in Doorbells, Bluetooth speakers, music systems, Alarms and various other projects. Specifications Impedance 3-4 ohms Power 15 Watt Speaker Dimension 53mm*53mm Thickness 29.4mm Magnet Diameter 44.0mm Shape Top Round, Square Frame Material Metal, Magnet & Plastic Color Black & Silver Magnet Type External Quantity 1 Pieces Country of Origin China
Out of stockDigital Multimeter Small Yellow Color LCD AC DC Measuring Voltage Current
[Measuring Instruments] A multimeter or a multitester, also known as a VOM (Volt-Ohm meter), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter would include basic features such as the ability to measure voltage, current, and resistance. Analog multimeters use a microammeter whose pointer moves over a scale calibrated for all the different measurements that can be made. Digital multimeters (DMM, DVOM) display the measured value in numerals, and may also display a bar of a length proportional to the quantity being measured. Digital multimeters are now far more common than analog ones, but analog multimeters are still preferable in some cases, for example when monitoring a rapidly-varying As the name suggests it is the multifunction device for all your testing need for daily work. When testing DC voltage, AC voltage, DC current, resistance, diode, buzzer, and battery, connect the red test lead to “VΩmA” jack and black test lead to “COM” jack, whereas When you need to test the current more than 200mA, connect the red test lead to “‘ 10A≡” jack and black test lead to “COM” jack. And When while testing the temperature, connect the temperature probe to “VΩmA” jack or “COM” jack. When testing the magnifying ratio of the transistor, turn the switch to hFE position and connect the transistor to the eight hole jack available in blue color. For the Square wave output, the frequency is 50Hz, the voltage is approximately 3Vp-p. The output jack is “VΩmA” and “COM” Description Table: Features : Small size makes it comfortable in many areas Brand new product. Good for newbies with basic knowledge of VI. No warranty on this product. No replacement or refund on this product Package Include: 1 x Digital Multimeter Small Yellow color and LCD display 2 x Measuring Probes(Red and Black)
DS3231 RTC Memory Module Precise Real Time Clock I2C-AT24C32
[Clock Module] The DS3231 RTC Real Time Clock Module is a precision timing module designed to provide accurate date and time information even when the main system power is unavailable. It features the highly accurate DS3231 RTC IC along with an onboard AT24C32 EEPROM memory chip for storing user data. In addition, the module includes a built-in temperature-compensated crystal oscillator (TCXO), which significantly improves timekeeping accuracy compared to conventional RTC modules. As a result, it offers excellent long-term stability with minimal drift. Because of its battery backup capability, the RTC continues to maintain accurate time and calendar information during power outages. Furthermore, the module automatically manages switching between the main power source and backup battery. The onboard AT24C32 EEPROM provides non-volatile storage for user settings, calibration values, and project data. Moreover, the module communicates through the standard I2C interface, making integration simple with Arduino, Raspberry Pi, ESP32, STM32, NodeMCU, and other microcontroller platforms. The DS3231 keeps track of seconds, minutes, hours, day, date, month, and year while automatically compensating for leap years up to the year 2100. ⚠️ Note: CR2032 backup battery is not included. 🔹 Key Features High-accuracy DS3231 RTC IC Built-in temperature-compensated crystal oscillator (TCXO) Integrated AT24C32 EEPROM memory Battery backup support Automatic leap-year compensation Two programmable alarms Programmable square-wave output Digital temperature sensor output I2C communication interface Low power consumption Excellent long-term timekeeping stability Compatible with Arduino, ESP32, Raspberry Pi, and STM32 🔹 Technical Specifications RTC IC: DS3231 EEPROM IC: AT24C32 Communication Protocol: I2C Operating Voltage: 3.3V – 5V DC Time Format: 12-Hour / 24-Hour Calendar Support: Day, Date, Month, Year Leap Year Compensation: Valid Up To 2100 Alarm Functions: 2 Programmable Alarms Square Wave Output: Programmable Temperature Sensor Accuracy: ±3°C Backup Battery: CR2032 (Not Included) Data Storage: 32Kb EEPROM (AT24C32) Low Power Operation: Yes 🔹 Pin Configuration VCC – Power Supply (3.3V – 5V) GND – Ground SDA – I2C Data Line SCL – I2C Clock Line Arduino UNO Connection SDA → A4 SCL → A5 VCC → 5V GND → GND 🔹 Applications This RTC module is suitable for: Arduino projects Raspberry Pi projects ESP32 projects Data loggers Digital clocks IoT systems Automation systems Time-stamped monitoring systems Industrial controllers Embedded electronics projects 🔹 Package Includes 1 × DS3231 RTC Real Time Clock Module with AT24C32 EEPROM
Out of stock4V DC LED Square shape High brightness LED Aluminum Yellow bead COB strip light bulb pack of 1pcs
[COB LED] 4V DC LED Square shape High brightness LED Aluminum Yellow bead COB strip light bulb pack of 1pcs This is a special type of high-power COB LED light. This LED produces high power lighting compare to LEDs that are present in the market. With no wire, these COB LED lights to provide less fuss and have limitless applications. These COBs have tiny metallic contacts that can be directly soldered to wires. Our high-power COB LEDs are energy efficient and provide a superior lighting experience. This LED works on low power up to 1W. This type of LED provides long life and solid-state reliability. PACKAGE INCLUDES This is the pack of a single piece of 4V DC LED Square shape High brightness LED Aluminum Yellow bead COB strip light bulb Features Lower operating and manufacturing cost Uniform consistent bright light Reliable and constant LED Environmentally friendly Flexible design
40×1 Female Berg Strip
[Header Pin] Features : Number of Pins: 40. Pin Spacing(pitch): 2.54 mm. Pin height: 11.6 mm. Square Posts. Stackable – End to End and Side to side. It can be manually broken for the length needed. Standoffs allow cleaning of solder contaminants.
1×40 Berg Strip Male Connector
[Header Pin] Features : Number of Pins: 40. Pin Spacing(pitch): 2.54 mm. Pin height: 11.6 mm. Square Posts. Stackable – End to End and Side to side. It can be manually broken for the length needed. Standoffs allow cleaning of solder contaminants.
Fence Sink Bracket for 12CM Fan 4.7 Inch Fan Grill – 120mm
[Cooling FAN] The metal guard is constructed of C1008 Steel with a nickel-chrome finish. It has four holes that can be screwed onto any cooling fan with an 80-millimetre square frame. Able to withstand 220 pounds of pull force at each joint, the guard was designed to withstand heavy usage. Application: The fan guard creates a protective barrier between a fan’s blades and any foreign objects it may come into contact with. The blade is fragile and can be damaged if impacted by a foreign object during use. At high speeds, it can also cause damage to wires and fingers on contact. Specification: Product: Fence Sink Bracket Total Dimensions 4.7 x 4.7 x .2 in. (120 x 120 x 5 mm) Screw Hole Size Ø .2 in. (Ø 4.9 mm) Fan Size 120 mm Material C1008 Steel Finish Nickel Chrome Ring Diameter Ø 1.5mm Rib Diameter Ø 1.8mm Pull Force 220 lbs Plug Guage Test Ø 6.355mm
Fence Sink Bracket for 9CM Cooling Fan 3.5 Inch Fan Grill
[Cooling FAN] The metal guard is constructed of C1008 Steel with a nickel-chrome finish. It has four holes that can be screwed onto any cooling fan with an 80-millimetre square frame. Able to withstand 220 pounds of pull force at each joint, the guard was designed to withstand heavy usage. Application: The fan guard creates a protective barrier between a fan’s blades and any foreign objects it may come into contact with. The blade is fragile and can be damaged if impacted by a foreign object during use. At high speeds, it can also cause damage to wires and fingers on contact. Specification: Product: Fence Sink Bracket Total Dimensions 3.5 x 3.5 x .2 in. (76 x 76 x 5 mm) Screw Hole Size Ø .2 in. (Ø 4.9 mm) Fan Size 80 mm Material C1008 Steel Finish Nickel Chrome Ring Diameter Ø 1.5mm Rib Diameter Ø 1.8mm Pull Force 220 lbs Plug Guage Test Ø 6.355mm
TPA3116D2 XH-M543 120W Dual Channel High Power Digital Power Amplifier Board
[Amplifier Board] Build your own music system with 30- 120 watts of stereo output. TPA3116D2 XH-M548 Dual Channel 30-120W Digital Power Amplifier Board is newly designed digital audio amplifier board with fine quality is practical to install and use also has good performance. It features high-efficiency class D audio power amplifier with the latest and original TPA3116D2 /TPA 3110 core technology the BTL bridge circuit is more efficient than before. This product uses the double power supply transformer with a dynamic power supply range from 12V to 22V with high efficiency small quiescent current. Additionally, it is equipped with Perfect protection functions like overvoltage protection and output current limit. Features: A strong TPA3116D2 / TPA 3110 chip is a digital power amplifier chip, with low idle loss characteristics, makes it work well and quickly. Onboard, front-facing IC to improve the input sensitivity, high-definition sound quality. It can be used for car vehicle computer speaker, family audio and video, and empty square. This product has the characteristics of loud sound, the capacitance is large, excellent sound quality. There is no solder joint on the back of the circuit board, the chip capacitors, and the solder board together, so there is no possibility of short circuit. Package Includes: 1 x TPA3116D2 XH-M543 30-120W Dual Channel High Power Digital Power Amplifier Board
Out of stock170 pts Mini Breadboard SYB-170 White
[Breadboard and Zero PCBs] The SYB-170 Mini Solderless Breadboard is named for its 170 tie points. It has 17 columns of 10 holes, which are separated into two pairs by a central notch, and labeled 1 to 17. Each column is also labeled, with a letter from A to J to that they can be easily referenced in instructions ( like the squares on a chess board ). It has a peel and sticks adhesive backing as well as two mounting holes for M2 screws so you can anchor it down. This solderless, re-usable breadboard is made from sturdy ABS plastic housing. Great for prototyping, testing and creating add-on modules or new circuits. It’s standard nickel plated spring clips ensure longevity and firm grip. As a single unit, the PTBB-170W provides one large (170) tie-point IC circuit terminal strip. If you run out of space, the PTBB-400W can be pair with additional breadboards (below) to accommodate larger projects. Works with LEDs, transistors, diodes, capacitors, and resistors. Features : Use: experimental, testing, robot Matching jumper, diameter 0.8mm Accepts 20-29 AWG wire sizes. Adhesive-backed for permanent mounting. Phosphor bronze nickel plated spring clips Package Includes : 1 x 170 pts Mini Breadboard SYB-170 White
Fence Sink Bracket for 8CM Cooling Fan 3 inch Fan Grill
[Cooling FAN] The metal guard is constructed of C1008 Steel with a nickel-chrome finish. It has four holes that can be screwed onto any cooling fan with an 80-millimetre square frame. Able to withstand 220 pounds of pull force at each joint, the guard was designed to withstand heavy usage. Application: The fan guard creates a protective barrier between a fan’s blades and any foreign objects it may come into contact with. The blade is fragile and can be damaged if impacted by a foreign object during use. At high speeds, it can also cause damage to wires and fingers on contact. Specification: Product: Fence Sink Bracket Total Dimensions 3 x 3 x .2 in. (76 x 76 x 5 mm) Hole to Hole Distance 2.81 x 2.81 in. (71.5 x 71.5 mm) Screw Hole Size Ø .2 in. (Ø 4.9 mm) Fan Size 80 mm Material C1008 Steel Finish Nickel Chrome Ring Diameter Ø 1.5mm Rib Diameter Ø 1.8mm Pull Force 220 lbs Plug Guage Test Ø 6.355mm
Out of stockFence Sink Bracket for 5CM Cooling Fan
[Cooling FAN] The metal guard is constructed of C1008 Steel with a nickel-chrome finish. It has four holes that can be screwed onto any cooling fan with an 50-millimetre square frame. Able to withstand 220 pounds of pull force at each joint, the guard was designed to withstand heavy usage. Application: The fan guard creates a protective barrier between a fan’s blades and any foreign objects it may come into contact with. The blade is fragile and can be damaged if impacted by a foreign object during use. At high speeds, it can also cause damage to wires and fingers on contact. Specification: Product: Fence Sink Bracket Total Dimensions (46 x 46 x 5 mm) Hole to Hole Distance (4.5 x 4.5 mm) Screw Hole Size Ø .2 in. (Ø 4.9 mm) Fan Size 50 mm Material C1008 Steel Finish Nickel Chrome Ring Diameter Ø 1.5mm Rib Diameter Ø 1.8mm Pull Force 220 lbs Plug Guage Test Ø 6.355mm Package Includes: 1 x Fence Sink Bracket 5cm
Out of stockPS2 Joystick Module Breakout Sensor
[Breakout Board] Dual Axis XY Joystick Module This is JoyStick Module PS2 Breakout Sensor very similar to the ‘analog’ joysticks on PS2 (PlayStation 2) controllers. Directional movements are simply two potentiometers – one for each axis. Pots are ~10k each. This joystick also has a select button that is actuated when the joystick is press down. With the help of this Joystick Module, you can measure position coordinates on the X and Y axis by moving the “hat”. It also contains a switch that is press-able by pushing the “hat”.It also contains a switch that is press-able by pushing the “hat” down. Similar to the XBOX controller. The X and Y axes are two 10k potentiometers which control 2D movement by generating analog signals. When the module is in working mode, it will output two analog values, representing two directions. This module uses the 5V power supply, and value, when reading through analog input, would be about 2.5V, a value will increase with joystick movement and will go up till maximum 5V; the value will decrease when the joystick is moved in other direction till 0V. Applications: 1. As square wave signal generator which generates a square wave signal 2. To provide a signal to the stepping motor driver 3. Adjustable pulse generation for chip use 4. Produce variable pulse signal, the control-related circuit (PWM dimming, speed) Module Description: Frequency is divided into three ranges: 1. XXX (no decimal point): the smallest unit is 1Hz, the range 1Hz-999Hz 2. XX.X (decimal point in ten): The minimum unit is 0.1Khz; the range of 0.1KHz-99.9KHz 3. X.X.X.(there is three decimal point): the smallest unit is 1Khz; the range 1KHz-150KHz Frequency Display Example: 1. ”100″ indicates that the PWM output pulse of 100Hz 2. ”54.1″ indicates that the PWM output pulse of 54.1KHz 3. ”1.2.4.” Indicates that the PWM pulse output 124KHz 4. Duty Cycle in the range:0 to 100 5. Three frequencies duty cycle is the same, all the parameters are non-volatile Features: 2.54mm pin interface leads Long service life and stable performance Standard interface and electronic building blocks Widely use in Arduino DIY projects Cross rocker as a two-way 10K resistor, with the rocker in a different direction.
Out of stockTPA3110 30W HW-404 2.0 Channel Digital Stereo Audio Power Amplifier Board
[Amplifier Board] Build your own music system with dual 30W of stereo output. TPA3110 XH-A232 Dual Channel Digital Power Amplifier Board is a newly designed digital audio amplifier board with fine quality is practical to install and use also has good performance. It features a high-efficiency class D audio power amplifier with the latest and original TPA3110 core technology the BTL bridge circuit is more efficient than before. This product uses the double power supply transformer with a dynamic power supply range from 12V to 24V with high efficiency small quiescent current. Additionally, it is equipped with Perfect protection functions like overvoltage protection and output current limit. Features: Strong TPA3110 chip is a digital power amplifier chip, with low idle loss characteristics, which makes it work well and quickly. Onboard, front-facing IC to improve the input sensitivity, high-definition sound quality. It can be used for car vehicle computer speaker, family audio and video, and empty square. This product has the characteristics of loud sound, the capacitance is large, excellent sound quality. There is no solder joint on the back of the circuit board, the chip capacitors, and the solder board together, so there is no possibility of a short circuit. Package Includes: 1 x XH-A232 TPA3110 30W 2.0 Channel Digital Stereo Audio Power Amplifier Board