Circuit Documentation
Summary
This document provides a detailed overview of a circuit consisting of an Arduino Nano, a 20x4 I2C LCD Panel, and an AC-DC PSU board. The circuit is designed to power the LCD panel and interface it with the Arduino Nano for display purposes. The document includes a component list, wiring details, and the embedded code used in the Arduino Nano.
Component List
20x4 I2C LCD Panel
- Description: A 20x4 character LCD display with I2C interface.
- Pins: GND, VCC, SDA, SCL
Arduino Nano
- Description: A small, complete, and breadboard-friendly board based on the ATmega328P.
- Pins: D1/TX, D0/RX, RESET, GND, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11/MOSI, D12/MISO, VIN, 5V, A7, A6, A5, A4, A3, A2, A1, A0, AREF, 3V3, D13/SCK
AC-DC PSU board 220V-5V&12V
- Description: A power supply unit that converts 220V AC to 5V and 12V DC.
- Pins: AC-N, AC-L, +5V, GND, +12V
Wiring Details
20x4 I2C LCD Panel
- GND: Connected to GND of the AC-DC PSU board.
- VCC: Connected to +5V of the AC-DC PSU board.
- SDA: Connected to A5 of the Arduino Nano.
- SCL: Connected to A1 of the Arduino Nano.
Arduino Nano
- A5: Connected to SDA of the 20x4 I2C LCD Panel.
- A1: Connected to SCL of the 20x4 I2C LCD Panel.
AC-DC PSU board 220V-5V&12V
- GND: Connected to GND of the 20x4 I2C LCD Panel.
- +5V: Connected to VCC of the 20x4 I2C LCD Panel.
Code Documentation
Arduino Nano Code
sketch.ino
void setup() {
// put your setup code here, to run once:
}
void loop() {
// put your main code here, to run repeatedly:
}
documentation.txt
This concludes the documentation for the circuit. The provided information should help in understanding the components, their connections, and the embedded code used in the Arduino Nano.