With project 11 from the starterkit i want to control the contrast by using a PWM output. For the LED this works great but for contrast i don’t get it working.
The only thing thats happens is that no text can be read, no matter witch value is set. When the LCD pin 4 is connected to GND the screen show the text that where programmed with full contrast. When using the potentiometer for the contrast, the contrast can be set to different settings.
Is there an solution i can use to control the contrast from the LCD screen with a PWM signal or have i bad luck?