All-Metal Hotend Conversion Kit for MakerBot Replicator Style 3D Printers with MK10 Hotends Using a hotend without a PTFE liner allows printing of materials that…

18-8 Stainless hex button cap head machine screws Pack of 20   Please consider our our multi-item discount found at the top of the listing page; it…

Black oxide coated hex socket cap flat head machine screws Pack of 20   10% off 3, 15% off 5 items.  Applies to most of…

STM32F103C8T6 ARM STM32 Dev Development Board Module Blue Pill USA FREE SHIPPING STM32 development board, commonly called the “blue pill” 32-bit microcontroller development board,new in…

This listing includes 4 DRV8825 driver chips with heat sinks The Arduino UNO Board is NOT included with this listing – see our other items…

*** 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…

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…

*** 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…

Quantity 20 Socket Head Cap Screw 18-8 Stainless Steel FREE Shipping to the USA + APO Addresses 10% off 3, 15% off 5 items.  Applies to…

*** 2 Pack *** Reed switch sensor for Arduino, STM32, ESP8266/ESP32, etc Specifications:     4-6VDC operation     LM393 Chip     Digital output (on or off)…