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LCD I2C or serial Character Controller IC

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I2C LCD driver IC with 3 PWM Back Light Outputs (P017-serial, P018-I2C)

(Two versions available Serial and I2C))

This is a controller IC that will control any normal character LCD type display, for example 16x2, 20x4, 40,2 etc. The IC can output a PWM signal for the back light enabling dimming as well as on and off. In addition to this it has in fact three PWM outputs that will operate the newer LCD displays that have a combined RBG backlight arrangement.

There is also a kit available to save time building.

Instructions: Full construction, data sheet and operation instructions are provided in the link.

Included is free Python software for the Raspberry Pi and Windows.

This is an example. Notice the three sliders for the back light, for displays with only one back light the red slider is used. Also note that the sign on message at start up can be set by the user.


  • I2C or Serial
  • PCB and parts kit as shown

This kit has all of the components including PCB that will attach to the back of the LCD.

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