User Manual Q&AAnswer
Apr 29, 2025 - 12:08 PM
To connect the JOY-IT 20x4 LCD Module with 16 Pin Header to an Arduino, you will need to use the LiquidCrystal library. Here are the steps:
1. Download the LiquidCrystal library from the Arduino Libraries website.
2. Open your Arduino IDE and go to Sketch → Include Library → Add .ZIP Library...
3. Select the downloaded LiquidCrystal library .zip file and add it to your Arduino IDE.
4. Restart your Arduino IDE to ensure the library is properly installed.
5. Connect the LCD module to your Arduino using the following pin connections:
- Arduino D12 to LCD Pin 4
- Arduino D11 to LCD Pin 6
- Arduino D5 to LCD Pin 11
- Arduino D4 to LCD Pin 12
- Arduino D3 to LCD Pin 13
- Arduino D2 to LCD Pin 14
- Arduino GND to LCD Pin 5
- Arduino 5V to LCD Pin 2 (through a 220Ω resistor)
- Arduino GND to LCD Pin 1
- Arduino Potentiometer Signal to LCD Pin 3
- Arduino 5V to LCD Pin 15
- Arduino GND to LCD Pin 16
6. Make sure to select the correct Board and Port under Tools in your Arduino IDE.
7. Copy the provided code example into your Arduino IDE.
8. Click on Tools → Upload to upload the code to your Arduino.
9. Your LCD module should now display the output according to the code.
Please refer to the JOY-IT 20x4 LCD Module with 16 Pin Header User Manual for more detailed instructions and troubleshooting tips.
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