Tom Mahood
  • Irvine, CA
  • United States
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Tom Mahood's Discussions

Any smaller alternatives to the stock Pixhawk buzzer?

Started this discussion. Last reply by Tom Mahood Sep 17, 2014. 2 Replies

I'm interested in replacing the stock Pixhawk piezo buzzer with something smaller but after a lot of time looking, I can't seem to find any specs on it. The schematics on the Pixhawk.org website show…Continue

Need advice for imaging a steep ridgeline

Started this discussion. Last reply by Tom Mahood Aug 7, 2014. 9 Replies

I'm interested in imaging a possible archaeological site located along the spine of a fairly steep descending ridgeline and am looking for advice on how to approach the imaging. At the very least I'd…Continue

Any good GPS cameras lighter than a Canon SX230 HS?

Started this discussion. Last reply by Tom Mahood Apr 11, 2014. 4 Replies

I've been using a Canon SX230 HS on multicopters for mapping and vertical imaging. I think it does a great job and takes fantastic pictures....but it's heavy! At 220 grams it seriously shortens…Continue

Need help with difficult analysis of log for Loiter crash

Started this discussion. Last reply by Tom Mahood Feb 21, 2014. 1 Reply

I've spent the past 4 hours going through the logs of my tricopter crash with both MP and APM Planner trying to figure out why it went down and I'm stumped. I'm decent with log interpretation and try…Continue

Tags: crash, Loiter

 

Tom Mahood's Page

Latest Activity

Tom Mahood replied to Christopher Harrod's discussion Newbie Question: How do I supply power to APM?
"The pic you linked to shows one female and one male plug, as it should be. Those yellow plugs are called XT60 connectors. Ummmm, not to be rude, but the questions you are asking are VERY basic, and things you should already know if you're…"
yesterday
Tom Mahood commented on Chris Anderson's blog post Photos from the Ferrara Drone Show
"(Italian Design) + (Drones) = Amazing!"
yesterday
Tom Mahood replied to Christopher Harrod's discussion Newbie Question: How do I supply power to APM?
"It would be best for you to use a Power Module. A full description for how to power an APM is here. I'd recommend not bothering with a telemetry radio until you get things running with just the basics."
yesterday
Tom Mahood replied to Tim Dickinson's discussion Vibration issue?
"You will need to post a dataflash log for anyone to examine your vibration level. And if it's an older APM you'll have to make sure your IMU logging is turned on (PX4s and Pixhawks have it turned on by default)"
yesterday
Tom Mahood replied to Kelly Ness's discussion Yaw Blues
"Many times it's one, silly thing that gets overlooked. Not that it's ever happened to me..... I find the two CCW, one CW setup to be the best, although they both will work. By running all motors CCW the tail motor has to tilt a lot more to…"
yesterday
Tom Mahood replied to Kelly Ness's discussion Yaw Blues
"I've found Autotune works very well for pitch and roll PIDs. Yaw is a bit trickier because some frame/motor combos seem prone to "yaw wobble" with APM. I've suffered from that and was able to cut out most of it by turning the…"
yesterday
Tom Mahood replied to Kevin Garland's discussion Osd Screen switch
"Switching is setup on the first screen of the Config Tools GUI for the MinimOSD, not Mission Planner. You have a choice of two panels. The first one you populate as you like, and leave the other blank. Then use the switch setup in Config Tools to…"
Thursday
Tom Mahood replied to Christopher Gehrich's discussion Trouble With 5V Linear BECs in Parallel in the group ArduCopter User Group
"It's considered poor practice to power a system with BECs in parallel. Sometimes it can work, but often times problems occur, yours being not the worst of the possibilities. You can blow up a BEC doing this. BECs are not like running batteries…"
Tuesday
Tom Mahood replied to Craig Thompson's discussion MinimOSD Config Setup & Connectivity...
"Have you tried using the usual Config Tools for the Minim (R800 being the latest) instead of the Hazy one? And the other question is does the LED on the Minim flash when you attempt to read or write, thus showing a communication attempt? Things like…"
Mar 20
Tom Mahood replied to Tazmoe's discussion I think I found the problem, but what is the cause?- Pixhawk switched flight modes by itself...
"Vcc will move around a bit and I'd say your's is OK. It looks within normal limits. Maybe tweak your transmitter's flight mode settings a bit, if possible, so you are more centered in the ranges, as Cala suggested below."
Mar 18
Tom Mahood replied to Tazmoe's discussion I think I found the problem, but what is the cause?- Pixhawk switched flight modes by itself...
"Your problem is most likely with your RC RX or Tx. If you plot your RCIN for channel 5 (the channel that changes the Pixhawk's flight mode) you'll see that the PWM values seen by the Pixhawk changes. Thus the Pixhawk switched flight…"
Mar 18
Tom Mahood replied to Armin Beyel's discussion Power supply for APM and receiver and servos
"I see the info you are referring to. That has to be some sort of error in the Wiki. In looking at the actual schematic for the APM, with JP1 left unconnected that center +5 Volt rail on the output does not connect to any of the circuitry of the APM.…"
Mar 17
Tom Mahood replied to Dan McKenna's discussion Research using IRIS..not allowed!? in the group IRIS
"Dan, the way the law stands as of today, is that you can't fly into federal airspace for non-hobbyist or recreational purposes without a COA from the FAA. Doesn't matter if it's from your property or the USFS's property. The only…"
Feb 28
Tom Mahood replied to Dan McKenna's discussion Research using IRIS..not allowed!? in the group IRIS
"Understood. It sounds like you must absolutely, positively adhere to all relevant regulations. But then the answer to your original question is that you can't legally fly your Iris for the research project you described without obtaining a COA…"
Feb 27
Tom Mahood replied to Dan McKenna's discussion Research using IRIS..not allowed!? in the group IRIS
"Dan: The problem is you've made an official request for approval to the USFS and they have to respond....officially. They are aware that the only way it is currently legal to fly a non-recreational "drone" in US airspace is with a…"
Feb 27
Tom Mahood commented on Hugues's blog post World's first : the lightest 2-axis brushless gimbal carrying a full HD camera
"The motors were described in the third post. I just picked up an equivalent set from RCTimer for $12 each to experiment with. They appear to be the same as the RCTimer 1806-2300KV Multi-Rotor motors."
Feb 21

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Rotors and fixed wing

Tom Mahood's Blog

Personal Drones May Present Public Safety Concerns

Posted on August 29, 2013 at 10:30pm 9 Comments

...Or so says the Joint Regional Intelligence Center. JRIC is yet another anti-terrorist agency most people have never heard of and is comprised of the Feds and law enforcement agencies in the counties of Southern California. The following single page…

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A composite folding H-quad

Posted on August 21, 2013 at 12:40pm 18 Comments

I've just wrapped up a new design based upon a lot of ideas I stole found on this site.…

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Comment Wall (1 comment)

At 7:14pm on December 12, 2013, Dennis Okeefe said…

this is cool.  i was looking for how to import .kmz files into mission planner and saw your post about exporting them.  i immediately realized who you were since i am a big fan of yours - black world stuff you have posted.  are you new to this "hobby"?   it would be a useful tool for "research".  anyway, do you know if you can import data directly from google earth into mission planner?  

timmy

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