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LM2596 DC-DC Adjustable Step-Down (Buck) Converter Module – 3A
A versatile and efficient DC-to-DC step-down converter capable of driving a 3A load with excellent line and load regulation. Ideal for lowering higher battery or power supply voltages (up to 40V) to safer levels for Arduinos, ESP8266, and other electronics.
MFRC522 RFID Reader/Writer Module with S50 Card and Key Fob
A complete RFID solution for Arduino and microcontrollers. This 13.56 MHz reader/writer module allows you to read and write contactless tags, cards, and key fobs. Perfect for security systems, smart locks, and automated attendance projects.
Pulse Heart Rate Sensor Module | Pro Tronix
Highly compact, circular optical PPG Pulse Heart Rate Sensor. Operating at $+3.3\text{V}$ to $+5\text{V}$ with low power draw, it generates a real-time analog wave output of capillary blood pulse changes. Complete with finger strap and protective backing, it is the perfect biometric addition to Arduino, ESP32, and Raspberry Pi builds.
GY-31 TCS3200 Color Sensor Module | Pro Tronix
High-precision GY-31 TCS3200 color sensor module. Featuring 64 photodiode arrays with RGB filters and 4 white LEDs, this module converts light intensity to a digital frequency output for automated color sorting, colorimeters, and smart IoT projects.
Water Level Sensor Module | Pro Tronix
High-sensitivity analog water level depth sensor module. Featuring a parallel trace grid design for 3.3V–5V microcontrollers, this compact board measures liquid levels and detects leaks for automated pumps, aquariums, and tank monitoring systems
Soil Moisture Sensor Module
High-sensitivity soil moisture sensor module set. Featuring an LM393 comparator chip, dual analog/digital outputs, and adjustable sensitivity, this module measures soil water content for automated irrigation systems, smart greenhouses, and Arduino builds.
Raindrop Detection Sensor Module Rain Sensor for Arduino
High-sensitivity resistive rain detection module kit complete with a nickel-plated sensing array plate, LM393 comparator board, and adjustable threshold pot. Delivers both analog and digital outputs, making it perfect for smart home setups and DIY weather monitoring stations.
PS2 Joystick Dual Axis Breakout Module for Arduino
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Buy the PS2 Joystick dual-axis breakout module online. High-precision X-Y analog outputs and Z-axis push button for Arduino robotics and DIY projects.
VHM-314 Bluetooth 5.0 Audio Receiver Board Module (Type-C Version) | Pro Tronix
High-performance VHM-314 Bluetooth 5.0 stereo audio decoder board featuring a convenient Type-C power interface. Equipped with an onboard 3.5mm AUX output jack and line-out solder pads, making it the perfect choice for retrofitting vintage audio gear or building compact DIY wireless speakers.
YF-S201 G1/2 Hall Effect Water Flow Sensor
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Buy the YF-S201 G1/2 Hall effect water flow sensor online. High-precision 1-30L/min pulse output sensor for Arduino and liquid flow control systems.
TEC1-12706 40×40mm 6A Thermoelectric Peltier Cooler
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Buy the TEC1-12706 12V 6A Peltier cooler module online. Premium 40x40mm solid-state thermoelectric cooling plate for DIY electronics and refrigerators.