I2C adapter module for 1602 LCD’s. Can be soldered directly to most 1602 LCD modules.
Features / Specs
- Main IC: PCF8574 (Unknown Manufacturer)
- Operating Voltage Range: 2.5 – 6VDC
- Supported Serial Protocol: I2C (Default Address: 0x27)
- Other Features: Backlight power control / Contrast adjustment potentiometer
- Dimensions: ~(41.6mm x 19.2mm x 15.3mm)
Pin Description
- PIN 1-> Ground
- PIN 2-> Supply Voltage (2.5 – 6VDC)
- PIN 3-> Contrast Adjust
- PIN 4-> I/O 0 – LCD RS
- PIN 5-> I/O 1 – LCD R/W
- PIN 6-> I/O 2 – LCD Enable
- PIN 7-> Not connected
- PIN 8-> Not connected
- PIN 9-> Not connected
- PIN 10-> Not connected
- PIN 11-> I/O 4 – LCD Data Bus DB4
- PIN 12-> I/O 5 – LCD Data Bus DB5
- PIN 13-> I/O 6 – LCD Data Bus DB6
- PIN 14-> I/O 7 – LCD Data Bus DB7
- PIN 15-> Backlight Anode (Connected to VCC via LED Jumper)
- PIN 16-> Backlight Cathode (Controlled by NPN transistor connected to I/O 3)
