I am using an Arduino Uno, Stone TFT LCD, and F5LED and I want the LED to get brighter and brighter as the number increases when I tap the "+" on the screen and conversely get dimmer and dimmer. I've tried using PWM but it doesn't seem to work. How do I change my code?
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Cliff W. wrote: > How do I change my code? Delete everything, learn some basic programming techniques, start over. PWM_DUTY is not changed, not used, and the analogWrites receive only values from 0..255, not 0..1023.
> PWM_DUTY is not changed, not used, and the analogWrites receive only > values from 0..255, not 0..1023. Oh yes, you reminded me with that comment.
Pulse Width Modulation (PWM) is a fancy term for describing a type of digital signal. Pulse width modulation is used in a variety of applications including sophisticated control circuitry. A common way we use them here at SparkFun is to control dimming of RGB LEDs or to control the direction of a servo.
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