IIC I2C TWI SPI Serial Interface ExpandedBoard 1602/2004/12864 u2013 diymore It also has one rotary encoder and 6 pushbuttons. Insert first the pushbuttons from the top, flip the board and solder them from the bottom. The traditional LCD connection method needs to occupy more pins Supply voltage: 2.5-6V Module can be counted: 8 can be couplet. Arduino Display Adapter Module For 1602 2004 LCD (Arduino Compatible I2c Lcd Adjustable contrast: rotate the blue potentiometer, increase clockwise, weaken counterclockwise I2C LCD Adapter: Support IIC I2C Interface Two lines (SDA and SCL) can control LCDs. Modify the device address by short -circuit A0/A1/A2., The default address is 0x27 IIC I2C TWI SPI Serial Interface ExpandedBoard 1602/2004/12864 The traditional LCD connection method needs to occupy more pins , Supply voltage: 2., 5-6V LCD1602 work with Arduino Uno but not Esp32 - Displays - Arduino Forum Specification: Serial I2C control of LCD display using PCF8574Backlight can be enabled or disabled via a jumper on the board; Supply Voltage: 5VContrast control via a potentiometerI2C Address: 0X20~0X27 (the original address is 0X20,you can change it yourself);Has 8 modules on a single I2C bus (change address via solder jumpers)address
