RC Radios, Transmitters, Receivers, Servos, gyros Discussion all about rc radios, transmitters, receivers, servos, etc.

Mixer for tiltrotor / vectored thrust

Old 06-19-2007, 07:22 AM
Junior Member
Thread Starter
maxvtol's Avatar
Join Date: Nov 2006
Location: Valdosta, GA
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default Mixer for tiltrotor / vectored thrust

I need a little help refining my onboard mixer for my vtol project.

I would like to speed thing up a bit by having a separate processor capture 8 PWM signals and sending them to the mixing microcontroller via I2C.

The first 3 channels would be coming from gyros, so the pulses will not be front to back as they do coming out of the receiver. The 4th channel is the throttle and I need it as quickly as the first 3.

The next 4 channels would be for tilt and gyro gains, so even if I skipped a frame, it wouldn’t hurt, although I would like as smooth a motion as possible. The pulses may or may not come out back to front sequentially from the receiver but they will never overlap.

Got a couple of questions.

1) What’s the best, least expensive way to capture these pulses? I would like to maintain about 1 usec resolution, but I could probably live with 2 or 3.

2) Is I2C the best way to go about this?

I know what I want, I just don’t know how to do it. I’ll have to explain this someone who can build PC boards, so if you could explain it to me in noob terms, I would appreciate it.

If you want more info on my project, check out my website [link=] [/link]

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.