Personally I'd just use a set of 3DR Radios. the air unit would connect to the RX/TX/VCC/Gnd on the arduino and the ground unit would be just a standard USB connect. For anything other than windows you would probably need an OTG cable…"
"Ken Wilkins said:
Thanks for the specifics. I'm using circuit.io for wiring diagram. They don't have the radio link, though, so how should I wire it, and what do I need on the ground for it?
Personally I'd just use a set of 3DR Radios. the air…"
"you could easily do this with an arduino [nano/micro/whatever] + SD reader + MPL3115A2. If you wanted to also beam down the data in realtime you could also use a set of radios. Total cost [if buying from ebay] would be about 10 bucks. [20ish if you…"
"open MP then press Control F then click on Param Gen on the left.
Close everything and then re-open and you should be fine.
Also when opening MP "before" connecting go to config/tuning and make sure the drop down that says "Layout" is set to advance."
"rebind your RX so that it does S.Bus and PWM and then you can just assign a switch to channel 9 on your TX and then connect the signal from your gear directly to your RX's 1st PWM pin and a ground, Do NOT power them off the RX or APM make sure THAT…"
"There are 3 flight modes you could look at.
Stab is just pretty much auto level that uses the mag/baro
Alt-Hold which is basically stab + holding altitude using the baro
Loiter uses the GPS to calculate position and tries to keep it there.
"do NOT forget to use a cord to tie the 2 tubes together. I had a bud forget when he made his and it took off with the center pole still attached to the copter and made it impossible for him to land. It was like a pogo stick. Felt bad for him as he…"
"I built a stand a few years ago to "air test" units without actually having them in the air :)
just some PVC tubing and wood. Costs about 5 bucks to make and pays for itself on the 1st use since no chances of breaking even a prop :) Plus it's a lot…"