Shop

Mini Toggle Switch 3-Pin SPDT ON-OFF-ON | Pro Tronix

Switches

SKU: PRO00188

Mini 3-pin toggle switch with SPDT ON-OFF-ON configuration. Durable panel-mount control switch for custom electronics, robotics, and power rigs!

-1% Sold out

LP16-24200 LiFePO4 25.6V 200Ah Energy Storage Battery | Pro Tronix

Battery & charger

SKU: PRO01145

LP16-24200 LiFePO4 25.6V 200Ah 5.12kWh industrial battery with 6000+ cycles. Flexible wall, rack, or stack mounting for solar and backup power systems!

-2% Sold out

PV18-3524 PREM High Frequency Off-Grid Solar Inverter 3.5kW 24V | Pro Tronix

Power Supply

SKU: PRO01144

PV18-3524 PREM 3.5kW 24V pure sine wave off-grid solar inverter with 100A charger. Ideal for solar power systems and reliable backup energy!

An ESP32-CAM micro-USB shield board featuring a CH340 chip, micro-USB port, reset button, and socket headers for the camera module.

-20% Sold out

ESP32-CAM Board Shield with Micro-USB Port & CH340 Adapter | Pro Tronix

ESP Boards

SKU: PRO01041

ESP32-CAM micro-USB expansion shield with CH340 serial chip. Hassle-free programming adapter board with built-in reset button and easy USB connection!

-12% Sold out

4 Channel 5v Relay Module

SKU: PRO01015

Description It is a 4 Channel Isolated 12v 10A Relay Module Opto-coupler, A wide range of microcontrollers such as Arduino,

CJMCU-ADS1115 16-Bit Ultra-Compact ADC Development Board | Pro Tronix

-10% Sold out

CJMCU-ADS1115 16-Bit Ultra-Compact ADC Development Board | Pro Tronix

SKU: PRO00590

Ultra-compact CJMCU-ADS1115 development board delivering high-precision 16-bit resolution over 4 single-ended or 2 differential channels. Features an onboard programmable gain amplifier (PGA) and simple I2C communication, perfect for sensitive millivolt-level analog sensor arrays.

Compact red printed circuit board showing a metal-shielded three-pin IR receiver dome, a current-limiting resistor, a red SMD indicator LED, and a 3-pin male header row.

-8% Sold out

HX1838 VS1838B IR Infrared Receiver Sensor Module with Cable | Pro Tronix

SKU: PRO00579

High-sensitivity HX1838 (VS1838B) 38kHz infrared receiver module. Operating on a wide 2.7V to 5.5V DC range, this module features built-in ambient light filtering, an onboard status indicator LED, and a 3-pin interface. The perfect choice for adding wireless remote control capabilities to your Arduino, ESP32, and Raspberry Pi projects.

Compact blue ADXL345 accelerometer PCB featuring an onboard ultra-low-dropout regulator, filtering capacitors, pull-up resistors, and 8 clearly labeled circular solder pads for pin headers.

-3% Sold out

ADXL345 3-Axis Digital Accelerometer Module | Pro Tronix

SKU: PRO00577

Highly accurate ADXL345 3-axis digital accelerometer and gravity sensor module. Operating on a wide 3.0V to 5.0V input range with standard I2C and SPI interfaces, it delivers up to 13-bit resolution across ranges of +/- 2g to +/- 16g. The go-to sensor for Klipper input shaping, gesture detection, and drone stabilization.

Compact red mechanical endstop PCB displaying an onboard microswitch with a metal roller lever, a current limiting resistor, a red status indicator LED, and a white 3-pin connection terminal socket.

-17% Sold out

Endstop Mechanical Limit Switch Module with Cable (RAMPS 1.4 Compatible) | Pro Tronix

SKU: PRO00548

Product Description The Mechanical Endstop Limit Switch is the most reliable and widely used homing sensor for DIY 3D printers,

Compact blue printed circuit board showcasing an input DC barrel jack and terminal block on the left, an input capacitor, step-down conversion circuitry with a 330 power inductor in the center, and a female USB port next to an output terminal block on the right.

-10% Sold out

24V/12V to 5V 5A DC-DC Buck Converter Module with USB & DC Jack | Pro Tronix

SKU: PRO00538

High-efficiency, synchronous 24V/12V to 5V 5A DC-DC step-down power module. Equipped with an onboard USB Type-A port, output screw terminals, an input DC barrel jack, and reverse-polarity protection. Ideal for powering Raspberry Pi setups, charging mobile electronics, and driving high-current robotics projects.