Learning electronics? Then, chances are you already know what an Arduino is, or at the very least, you've heard of it. After all, it's among the most popular electronics platforms available in the ...

Qwiic I2C connector for expansion modules. 3-pin header with an “OFF” pin to turn off the board and a “VRTC” pin to keep the internal Real-Time Clock powered and running. Both Arduino UNO R4 boards ...

They are female header pins. You’re supposed to put wires or male jumper pins in them. Arduino Uno pinout There are two kinds of pins: GPIO and power pins. GPIO pins let you process inputs and outputs ...