1602/2004/12864 Rambo LCD Controller Adapter Display Module Board

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1602/2004/12864 Rambo LCD Controller Adapter Display Module Board

Uses MCP23017 chip, it is compatible with 1602 and 12864 liquid crystal screens, through this module is switched, use I2C communication, only need two MCU I/Os to be able to realize the liquid crystal to drive the display. The potentiometer on the module can achieve contrast adjustment. You can also unplug the jump cap to turn off the backlight or adjust the brightness through PWM. Supply voltage: 5V the backlight and contrast is adjusted by potentiometer Compatible for 1602 LCD 2004 LCD 12864LCD