LCD Display
See the LCD micro-circuits guide.
Connection Diagram
The Green (SDA) and Yellow (SCL) wires between the Nano 1, Nano 2, and Pico to the LCD module are the LCD connections. The ESP32 is not connected to the LCD, it will be connected to an OLED later.
Connections
Board pin numbers are those printed on the board while code pin numbers need to be used in code (generally indicated in the pinout diagram as the GPIO pin number). They may be the same or different, depending on the board.
Nano Circuit 1
Board Pin | Code Pin | Pin Mode | Component | Pin |
|---|---|---|---|---|
| A4 | A4 | I2C SDA | I2C lCD | SDA |
| A5 | A5 | I2C SCL | I2C LCD | SCL |
Nano Circuit 2
Board Pin | Code Pin | Function | Component | Pin |
|---|---|---|---|---|
| A4 | A4 | I2C SDA | I2C LCD | SDA |
| A5 | A5 | I2C SCL | I2C LCD | SCL |
Pico Circuit
Board Pin | Code Pin | Mode | Component | Pin |
|---|---|---|---|---|
| 6 | 4 | I2C SDA | I2C LCD | SDA |
| 7 | 5 | I2C SCL | I2C LCD | SCL |
Code
The code for this circuit is distributed across multiple files, so will not be displayed here. It will be available for download for subscribers.