AKROS

Another decision to make is materials. In this case the sky is basically the limit. Multicopter frames can be as simple as a couple of crossed sticks or as complex as interlocking plates with tubes of woven carbon fiber. Kits can be purchased, or designs can be hand made. If you're scratch building, the local hardware store is often a great source of parts. I've seen everything from towel rod to PVC pipe pressed into service as part of a multicopter frame... Power systems have been a tough problem since the early days of radio controlled planes. Picking the right power system is a lot like picking the correct microcontroller or op-amp for a circuit design. There are a seemingly endless number of parameters to be taken into account. Once you break it down though, it isn't too hard... The key to this whole operation is where it says INPUT (Data, Var, Abs). Those two bytes (0x81, 0x02) specify that this will be an absolute input device. Of course, reporting absolute position is very..