Product parameters:
1. Size: 41.5mm (length) * 19mm (width) * 15.3mm (height)
2. Weight: 5g
3.PCB color: black
4. Power supply voltage: 2.5-6V
5. Support I2C protocol
6. With backlight power control, you can set the jumper cap is connected to the backlight power supply. Plug in the jumper cap to connect the backlight power, unplug the jumper cap to disconnect the backlight power
7. Contrast adjustable, rotating blue potentiometer, clockwise enhanced, anti-clockwise weakened. Potentiometer design in the front, convenient for customers to adjust freely anytime, anywhere
8. Modules can be cascaded up to 8 cascades. Change the device address by shorting A0 / A1 / A2. The default address is 0x27
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