I am trying to fade an LED with the TLC5940, but I'm stumped. I keep trying to come up with code, but I can't come up with the right code. I know why it's NOT working, but I just can't get it to work. If anyone here doesn't know how to use the TLC5940 library, here's the basic code:
Tlc.set(1, 4095); // That would set output pin 1 HIGH (Sets the output to have a greyscale value of 4095, which is the max value).
Tlc.set(1, 0); // This would set output pin 1 LOW (Sets the output to have a greyscale value of 0, which is the lowest value).
Tlc.update(); // This updates the TLC5940 and makes changes to the outputs.
Tlc.clear(); // This sets all the outputs to 0.
Tlc.set(1, 4095); // That would set output pin 1 HIGH (Sets the output to have a greyscale value of 4095, which is the max value).
The comment here, and on the next line, should give you a clue that you can use any value between 0 and 4095 to set the brightness of the LED.
Also, the comment following the Tlc.output() call should make it clear that you need to call that function to actually send the value(s) to the LED(s).
So, to fade a single LED, you'd use a for loop containing a call to Tlc.set() using an ever increasing (or decreasing) value for one pin, followed by a call to Tlc.update().
To fade several LEDs, you'd use a for loop containing several calls to Tlc.set() using an ever increasing (or decreasing) values for one of several pins, followed by a call to Tlc.update().