This PCB was planed for Sainsmart 4-Channel 5V Relay Module. It is alss possible to measure the current if ACS712 is connected to the prepared header. ACS Generic male header - 3 pins pin spacing ...

Here’s a fun build from [RootSaid] that is suitable for people just getting started with microcontrollers and robotics — an Arduino-controlled two-wheeled robot. The video assumes you already have one ...

Before the Raspberry Pi came out, one cheap and easy way to get GPIO on a computer with a real operating system was to ...

This is a library for the laser particle sensor module PM2005 manufactured by Wuhan Cubic Optoelectronics. The PM2005 module counts airborne particles of different sizes in catagories of 0.3, 2.5, and ...