Search found 7 matches

by PeeBee
Thu Jun 19, 2014 2:59 pm
Forum: Software development
Topic: Serial via another Arduino with XBee
Replies: 0
Views: 187

Serial via another Arduino with XBee

In case anyone is interested... I have written a small protocol dumper and serial passthrough for Multiwii. I put an Arduino on the aircraft with an Xbee, connected to the second serial port of the MultiWii. I then run the GUI into a USB explorer with another XBee on it. This gives me in the air tun...
by PeeBee
Thu Jun 19, 2014 10:24 am
Forum: Software development
Topic: Fuzzy tuning of PID gains
Replies: 8
Views: 1221

Re: Fuzzy tuning of PID gains

Auto tune/assist tune from the GUI shouldn't be hard... start at a PID = 0, then increase P in steps, say every 10 seconds. The user can decide when oscillations set in, then fix P, then move onto I, etc. This would work for any board 8 or 32 bit. ANyone think this is worthwhile/useful?
by PeeBee
Wed Jun 18, 2014 12:58 pm
Forum: Ideas
Topic: Attemp to integrate sonar (ultrasonic sensor)
Replies: 265
Views: 135222

Re: Attemp to integrate sonar (ultrasonic sensor)

I have a 32u4 based MicroWii (Hextronik) and a SRF-04. Is it possible to get Alt-hold to use this sensor directly from the MicroWii?

I have experience in coding the Arduino Leonardo, so can do some coding if that necessary.

Any suggestions would be appreciated... :)
by PeeBee
Wed Jun 18, 2014 8:53 am
Forum: Software development
Topic: Spektrum Telemetry Feed
Replies: 15
Views: 2119

Re: Spektrum Telemetry Feed

Yes, as have I... but I have this equipment lying around, so would rather use it than discard it. And the code is there and working, so why not? Also, its a bit satisfying to have reverse engineered the 'x-bus' protocol, despite Sputum's best efforts to obfuscate it! Why not offer a lower cost path ...
by PeeBee
Tue Jun 17, 2014 10:53 pm
Forum: Software development
Topic: Spektrum Telemetry Feed
Replies: 15
Views: 2119

Re: Spektrum Telemetry Feed

Hi all, I have a Dx7s and TM1000 and SPektrum GPS. I have written code for my home brewed FC which reads the GPS data via the Leonardo's I2C (yes, x-bus is just Sputum-proprietary-speak for I2C). The GPS module is a slave, the Leonardo must be the master. This means the I2C pins are used. The GPS mo...
by PeeBee
Tue Jun 17, 2014 10:18 pm
Forum: Software development
Topic: Fuzzy tuning of PID gains
Replies: 8
Views: 1221

Re: Fuzzy tuning of PID gains

How about doing the auto tuning in the Processing GUI app? No RAM/code size issues... I am using an XBee 2.4GHz to get in-flight access via the GUI (and others are using bluetooth) so all the interface needs is a button next to each PID set saying 'Auto tune'. Additional features could be starting l...
by PeeBee
Tue Jun 17, 2014 7:53 pm
Forum: Getting Started - MultiWii config and setup
Topic: Hexcopter/quadcopter losing throttle power after awhile
Replies: 13
Views: 2630

Re: Hexcopter/quadcopter losing throttle power after awhile

I had a similar problem after I mis-connected some of the connections to the rx. It would not develop enough power in any mode to lift off. Checked everything, couldn't get it to work. Found this thread, cleared EEPROM, recalibrated ESCs, reloaded MultiWii, recalibrated accel and mag, and viola, it ...