
16x2 character LCD with I2C interface, adjustable contrast, and configurable I2C address to avoid bus conflicts. Compatible with common Arduino LCD I2C libraries.

5V supply for the LCD module.
Common ground.
I2C data line. DFRobot documents the connector as VCC, GND, SCL, SDA with configurable address 0x20-0x27.
I2C clock line.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| VCC | power | 5V supply for the LCD module. | 5 | |
| GND | ground | Common ground. | ||
| SDA | i2c | I2C data line. DFRobot documents the connector as VCC, GND, SCL, SDA with configurable address 0x20-0x27. | ||
| SCL | i2c | I2C clock line. |
SPI · I2C · 3.3 V · 3.3 – 5 V · Breakout
Adafruit describes product 398 as a 16x2 RGB backlight LCD using digital pins for LCD control and PWM pins for the backlight; the product…
Module pins: VCC, GND, SDA, SCL. Schematik maps them to your board in the app.
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