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Male


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Saint Paul, MN


About Me:

product development cooperative that uses its profit for charity.


Please tell us a bit about your UAV interest

seeking fun and compelling projects for engineering outreach for kids in schools


Hometown:

saint paul, mn


Activity Feed

crayfellow replied to crayfellow's discussion SimpleBGC (alexmos) and APM
"hey Shawn! Maybe it's about time we get an effort together to sort it out. Do we have an idea how big the user base might be? It'd certainly be useful for us. Shawn McCracken said:
Has there been any further development on this? "
Mar 22, 2017
crayfellow replied to Randy's discussion PixRacer with Ardupilot
"I've had an awful time with ESC calibration on QGC/PX4. The 2-3 times I've succeeded it's the sort of thing where you look back and you're not entirely sure which thing worked. Yes, throttle up / reboot / reboot again / throttle down, etc. The ESC…"
Feb 27, 2016
crayfellow replied to Randy's discussion PixRacer with Ardupilot
"I have the latest ArduPilot build for Pixracer and I am unable to connect using Tower. I will try PX4, I am guessing it will work as QGroundControl has worked consistently."
Feb 27, 2016
crayfellow replied to Randy's discussion PixRacer with Ardupilot
"I have not found that to be the case, either with Mission Planner or QGroundControl. PX4 on QGroundControl on the other hand connects consistently any time the Pixracer WiFi network is connected.
Happy to hack deeper via console/terminal/TCP/UDP to…"
Feb 27, 2016
crayfellow replied to Randy's discussion PixRacer with Ardupilot
"For now it seems we choose between Pixracer+WiFi using PX4 and QGroundControl, or Pixracer+traditional telemetry using ArduPilot and Mission Planner. I still haven't had time to dig into the MavESP8266 firmware, but I'm not aware of anyone…"
Feb 27, 2016
crayfellow commented on Andrew Tridgell's blog post A new chapter in ArduPilot development
"Yes! Congratulations Tridge, et al.
It will be great to see a centralized Ardupilot forum. Currently discussion is distributed between drones-discuss, rcgroups, diydrones, and ardupilot.com. It’s pretty much impossible for a professional or advanced…"
Feb 27, 2016
crayfellow replied to Randy's discussion PixRacer with Ardupilot
"The WiFi port is effectively SERIAL1/TELEM1, correct? I haven't looked through the MavESP8266 firmware yet but I'm curious if anyone else is successfully using the WiFi with ArduPilot. I know some firmwares were using a 921k baud rate.
I'll try to…"
Feb 26, 2016
crayfellow replied to Randy's discussion PixRacer with Ardupilot
"Randy, for Mission Planner users, it seems "Beta firmwares" does not make 3.3.4 available. 
Should it be available on the firmware site (http://firmware.diydrones.com/Copter/latest/) or somewhere else? I do see V3.4-dev is here, but not the pixracer…"
Feb 20, 2016
crayfellow replied to crayfellow's discussion SimpleBGC (alexmos) and APM
"that is interesting! Good to hear that the serial connection from Pixhawk is working for you. Are you able to use Mission Planner to point the camera, or are you using it specifically to counteract drift?

I haven't seen that NullPointerException,…"
Feb 20, 2016
crayfellow posted a discussion
Hi all,Aleksey has mentioned that he has an alexmos firmware update that supports MAVlink as a means of avoiding/eliminating sensor drift by leveraging flight controller attitude and GPS. Randy had mentioned "alexmos serial" support during the APM…
Feb 17, 2016
crayfellow replied to Randy's discussion Copter-3.3 beta testing
"Hi Randy!
I have searched the various sources and cannot find anything conclusive on alexmos/basecam support, especially the serial capability. Does this use the UART on the SimpleBGC otherwise intended for a bluetooth module, or something else? Or…"
Feb 16, 2016
crayfellow commented on PX4's blog post A detailed look at Pixracer
"On topic: My Pixracer arrived today! As an R&D engineer working to put as many sensor packages as possible in the air for scientific research, I'm excited to explore the opportunities this tiny new board affords! We have a Blackout Mini H that I…"
Jan 21, 2016
crayfellow posted a discussion
Hi all,I'm not sure if this is necessarily the correct forum as we're doing aerial survey with various sensor packages for scientific research, conservation projects, etc.But our problems are the same as yours, I think: drift caused by using only…
Jan 20, 2016
crayfellow replied to Randy's discussion Copter-3.3 beta testing
"yeah maybe. Are you just running it bare on the frame? I originally chose the rctimer based on the case. You're right, it might be equivalent, but it wouldn't hurt to do a comparison."
Sep 17, 2015
crayfellow replied to Randy's discussion Copter-3.3 beta testing
"I have no issue paying more for a significantly more effective implementation. It's true all of these have M8N but different antennas, trace/PCB quality, and antennas certainly will make a difference. My question is: what CSG board are you using? Is…"
Sep 17, 2015
crayfellow replied to Randy's discussion Copter-3.3 beta testing
"That reminds me - has anyone found a better method of calibrating the current measurement than running up the motors? That method is impractical for big 15+" prop craft.
I guess you could use the FrSky hall effect current sensorand make a…"
Sep 14, 2015
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