Tricopter Electronics Wiring Basics!

[abaumer]

Hello. I'm a newbie here. I've been reading your threads for months building my tricopter piece by piece. It's nearly ready to fly, but I need some help I can't seem to find in the threads.

I need help knowing exactly how to hook up the following:

- HobbyKing Multi-Rotor Control Board V2.1 (Atmega168PA)
- 3 x TURNIGY Plush 18amp Speed Controllers
- DX7s Receiver
- Battery

A basic schematic of what goes where, and which ports exactly on the board & receiver would be hugely helpful. This is probably second nature to you guys, but I need the basics! Thanks so much in advance.

[SecretSpy711]

The RCexplorer.se educational section has pretty much all the info you'll need in one place... he used a slightly different board but all the pins are the same. It was indispensable when I was setting up my own Tri.

You'll need a bunch of male-to-male servo leads.
Have you flashed the board for the Tri configuration?

P.S. Welcome to FPVlab!

[FPVer]

If you haven't already, you need to reflash the board because it comes as standard setup for quadcopter control.
http://www.rcexplorer.se/Educational/HKKK/HKKK.html
As it explains, you need an AVR programmer which again, as he explains, you can get from ebay or hobby king

Then you need to set it up:
http://www.rcexplorer.se/Educational...e/kkguide.html

hope it helps, but as secretspy711 said, it's all on RCexplorer's website

[abaumer]

Thanks SS711 & FPVer! Exactly the kind of info I needed! Now to flash my board and plug it in!

[abaumer]

Ok. I'm back! It's been a while, but I finally got around to resetting everything. New transmitter model setup with all defaults on DX7s. Calibrated ESCs, pushed new firmware to board (HK v2.1 board with KK v1.6 firmware), all gyros right direction, all pots right direction and set to 50%, all controls to right direction.

It hovers! Kinda. I think it's mostly me and some trim to get it to hover more stably without floating around.

ONLY ISSUE: The Aileron control doesn't seem to be working well. The rig doesn't seem to respond to it. Hmm. I tried pushing yaw pot to 75%, but nothing. Any ideas?

[brock-samson]

how high are you hovering? I found that 5ft is the sweet spot for trimming, If you can retain control at that level you are ready to fly. The hk kk boards don't stop the tricopter from drifting around at hover so use caution and never try to recover as a beginner just kill all throttle. During the trimming process tricopters can get pretty wild and take off on you in a panic. If all else fails make sure your kk board is compensating correctly by removing the props and tilting the tricopter, The motor going downward should increase rpm. Also expo and dual rate need to be set correctly. Here are my settings.

THR 5% expo 100%DR
RUD 35% expo 100%DR
ELEV 40% expo 60%DR
AIL 40% expo 60%DR

Hope that helps, Good luck!

[Dsiee]

I second the setting the expo and dual rates! My first tri was uncontrollable without dual rates and expo

[abaumer]

Thanks guys. I set my DR/expos, not to exactly those, but close. Going for another try tomorrow! I'll give those settings a whirl too. Thanks. I'll let you know how it goes.

[SecretSpy711]

abaumer, you said it wasnt responding to roll/aileron control so you changed the gain for yaw/rudder?