Circuit Diagram to Interface OLED Display with Arduino UNO. As the OLED display uses the I2C protocol for its communication, we are going to utilize the hardware I2C port of the Arduino UNO via its ...

Automatic Plant Watering System Circuit Diagram. The below circuit diagram uses Arduino UNO R4 WiFi as a main controller, but you can use any other microcontroller by swapping it and making little ...