MarkusXL
Second Officer
United States
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I connected some LED's, a DMM, and a cheap oscilloscope to the outputs of the PWM ports!
So, you get about 5 Volts output by default. You can use Scratch blocks to program the Duty Cycle from 0% to 100%, so you get from 5V to 0V with a resolution of 0.05V per step.
The LED's I used are not very bright
They are made for RC gear, which puts out at least 6V. So, RC servos will work, just a bit slower with less torque.
The cheap LEDs I got put two LEDs in series on the 5V signal. I think I can rework it to put 5V across each LED, that should make them pretty bright and hopefully not burn out. If I burn out one I will have to rig a series resistor too.
If I get this right, then it will be worth it make a little video so you can see the square wave on my cheap o-scope.
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