***3 PIECES*** ARM STM32 Dev Development Board – commonly known as the “Blue Pill” 32-bit microcontroller development board,new in sealed package containing 2×20 male pins…

*** 10 Pieces *** Single-channel 5V relay board Please consider taking advantage of our multi-item discount found at the top of the listing page; it allows us…

Arduino Nano compatible microcontroller board + Screw Terminal interface board These are great for securely connectinng wires, especially when using a breadboard doesn’t make sense.…

This sensor triggers when something comes between the IR emitter and receptor.  Generally used as non-contact limit switches/endstops/proximity sensors.  Also can be used to build…

Stainless hex socket cap flat head machine screws Pack of 20 Photo may not be of exact item, for example we use pictures of one…

*** 2 Pack *** IR proximity/obstacle detection/avoidance  sensor for Arduino, STM32, ESP8266/ESP32, etc 3.3V-5V operation LM393 Chip Digital output Adjustable threshold Please consider our our multi-item…

Inductive probes are a popular way of adding bed level compensation ability to 3D printers. Marlin and other 3d printer firmwares support this.  Also useful…

3.5″ Touchscreen display for Raspberry Pi 2 and 3 This is the perfect display if you want to keep the size as close to the…

Pressure transducer with G1/4 Threads + adapter to 1/4 NPT Input 5VDC Output: 0.5-4.5VDC Material: Steel Working pressure: 0-1.2MPa (approximately 0-174psi) Maximum pressure 2.4MPa Working temp.:…

*** 2 Pack *** USB breakout adapter Exposes the individual wires of the USB interface as screw terminals Useful for debugging USB devices, or supplying…