*** 2 Units / One Pair of Transceivers *** These are very easy to use and robust wireless modules. Their popularity means there is no…

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

Black oxide coated hex socket cap flat head machine screws Please consider our our multi-item discount found at the top of the listing page; it…

0.96″ I2C/IIC Serial OLED Display Screen with WHITE text Resolution is 128×64  Compatible with Arduino, ESP8266, ESP32, Raspberry Pi, etc.  3.3V or 5V logic level, 3.3-6V input. Only…

Package of 20 18-8 Stainless steel hex (Allen) socket button head/cap machine screws FREE Shipping to the USA + APO Addresses 10% off 3, 15% off…

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

*** 4 Pack *** Photosensitive sensor for Arduino, STM32, ESP8266/ESP32, etc 3.3V-5V operation Digital and analog outputs Used to sense light (or dark) FREE Shipping to…

FREE USA SHIPPING! 2 Pack SPI MicroSD adapter, compatible with Arduino and other popular development boards Breadboard compatible.  New, sealed in anti-static bag. See our…

Single-channel 5V relay board Very simple to wire, and extremely useful FREE Shipping to the USA + APO Addresses 10% off 3, 15% off 5 items. …