1. I2c address: 0x20. 2. Supply voltage: 5v. 3. The backlight and contrast is adjusted by potentiometer. 4. Come with 2 iic interface, which can be connected by dupont line or iic dedicated cable. 5. Compatible for 1602 lcd.
Package Included: 2 x LM2596 Buck Step-down Power Converter Module DC 4.0~40 to1.3-37V Voltmeter 2PCS IIC/I2C/TWI/SPâ€‹â€‹I Serial Interface Board Module For Arduino1602LCD Display