1. Supply voltage: 2.5 – 6V.

2. Support I2C protocol.

3. Backlight power control, you can set the jumper cap to connect the backlight power supply. Plug in the jumper cap can connect the backlight power, unplug it can disconnect the backlight.

4. Contrast is adjustable, rotate blue potentiometer, clockwise to enhance, counterclockwise to weaken. Potentiometer is designed in the front, which is convenient for customers to adjust freely.

5. Modules can be cascaded, up to 8 cascaded. Modify the device address via short circuit A0 / A1 / A2. The default address is 0 x 27.

6.Size: 41.5 * 19 * 15.3mm.