Plug the RFID module into the breadboard with enough space around it. Connect the VCC pin to the Arduino's 3.3V (not 5V), and ...

Step-by-step guide on designing and programming a custom I2C slave sensor device using Arduino. Trump overpowers Musk's ...

a digital potentiometer, and a connector for the circular touchpad. The Arduino communicates with both devices over I2C, and translates the high resolution digital output of the touch controller ...

Although this is his first time venturing away from HD44780 character displays, the availability of an Arduino ... control pins eat up most of the available I/O on the ATmega328 chip he used, but ...