3pcs RobotDyn Graphic LCD 12864 Adapter Module Backlight Driver BoardFeature: This is I2C adapter for Graphic LCD 128x64, very suitable for interactive work with , Raspberry. In this adapter used driver MCP23017. For instruction and libraries you can find information here: www. gammon. com. au forum ? id=10940 For change I2C adress you can folow infromation on bottom side of board. Control of backlight: Normal backlight use power 5V from +5V and can ajust with potentiometer. If you need control of backlight from
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