A 26.000MHz crystal is used in the ESP-01/ESP-01S module. In order to use the ESP-01 Wi-Fi relay module, a programmer/programming adapter is required to program the ESP-01 module (see below). Also it ...

If so, remember to connect the VCC pin to 5V of the Arduino board to enable the control input pins IN1 and IN2. Also note at this point that, if you want perfect galvanic-isolation, do not link ...

Two years after launching the Curie-powered Arduino 101 maker board, Intel is calling it quits on the hardware. The chipmaker has announced the end-of-life for its Curie Module, which launched in ...

Try “Arduino in 555 timer form-factor” and you have an article on using DIP-8 AVRs. Piunora opens up both the 3v3 on 0.1″ pitch and USB world of MCUs or a non-CM pi, and PCIe from the ...

Arduino Uno. 4-channel relay module. PIR motion sensor. Steps: Use Arduino to handle sensor input and relay control. Pi runs a Python Flask server with a simple UI to toggle GPIO pins via serial ...