ESP-8266 Development Board (commonly referred to as “NodeMCU”) USB-programmable (requires a microUSB cable); no extra programming device required. Built around the extremely capable ESP8266 chip…

Quantity 20 Flat Head Hex Drive (Allen) Machine Screw 18-8 Stainless Steel Please consider our our multi-item discount found at the top of the listing page; it…

***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…

*** 2 Pack *** LSI/CSI LS7366R quadrature counter IC in DIP package This is a popular chip for reading quadrature encoders (such as those used on servo…

This listing includes 2 2×20 and 1 2×10 female headers to match the pin layout on these boards.  These can be soldered to a prototype board…

40 Pin female header, 2 rows of 20 pins each.  2.54mm / 0.1″ spacing This header has extra long pins which is why it is…

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…

*** 4 Pieces *** ESP-8266 Development Board (commonly referred to as “NodeMCU”) USB-programmable (requires a microUSB cable); no extra programming device required. Built around the…

*** 2 Pack *** 0.91″ I2C / IIC Serial OLED Display Screen with BLUE text Resolution is 128×32 SSD1306 Compatible with Arduino, ESP8266, ESP32, Raspberry Pi,…

24-Pin ATX Power supply adapter Coverts your ATX (common in computers) power supply to a bench/lab power source. 4 pairs of power/ground female banana plugs,…