// Display: SDA pin -> Arduino Analog 4 or the dedicated SDA pin // SCL pin -> Arduino Analog 5 or the dedicated SCL pin // Arduino Leonardo: // Display: SDA pin -> Arduino Digital 2 or the dedicated ...

3 pins are required to interface (two I2C and one reset). Adafruit invests time and resources providing this open source code, please support Adafruit and open-source #define SCREEN_WIDTH 64 // OLED ...

The hardware was assembled by connecting the Arduino UNO R4 WiFi, the PZEM 004T, the current transformer, and the OLED ...