Clip the ends of the resistors fairly sort, maybe about 10mm longs or long enough that you feel comfortable soldering too.To start with strip the ends of 5 wires, the wires I use came from an old computer ribbon cable.I have only made this with a common cathode LED. If you need to apply the ground to the longest lead you have a common cathode, if you need to apply the voltage to the longest lead and ground any of the other leads you have a common anode. Note here that I have a common cathode LED, if you have a common anode LED your pin layout will be different to find out which you have, either look at the package, if you have it, or try and plug it in to a voltage source. The RGB has 4 leads, one for each color and one for ground. I think that this is the most confusing part. This step is to actually get all of the parts of the circuit together. You could use what ever case you want for this, but remember it will be something that you rest your foot on to use it. Also on the version I made I used 330 Ω resistors on all, this does mean that the red is much brighter than the other colors.Ī note on the case: I used a 3D printer to make a case as I found that to be the easiest. A micro controller that uses that chip should work (I used a knock off and it works fine). The Pro Micro uses the MEGA32U4 chip which works great with the keyboard.h library to make the code really simple. USB micro cable, long enough to reach the floor*Ī note on the Arduino selection.Arduino Pro Micro - a knock of will work as long as it uses the MEGA32U4 chip.The first and most important step in any project is gathering your materials and tools, unless you want to be cursed to be wandering around looking for that one tool you need every 2 minutes.
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