"You have to take into account that warthox can bend the gravitational field with his mind!"
Moderator
-
Mark Harrison
- Male
- Oakland, CA
- United States
- Blog Posts (29)
- Discussions (43)
- Groups
- Photos
- Photo Albums
- Videos
Mark Harrison's Discussions
attopilot current sense + XT60 connectors?
Started this discussion. Last reply by Andrew Tridgell Apr 24. 2 Replies 0 Likes
Is it feasible to directly attach XT60's to this unit, similar to how they attach Deans connectors?If so, how does the curved surface of the XT60 mate?AttoPilot Voltage and Current Sense Breakout -…Continue
Tags: attopilot
Alternate sources for attopilot voltage/current sensor?
Started Apr 24 0 Replies 0 Likes
Are there any alternate sources for this item?3DR, do you plan to carry this item or equivalent?AttoPilot Voltage and Current Sense Breakout - 90A…Continue
Tags: attopilot
xbee LED docs?
Started this discussion. Last reply by Paul Gregory Apr 21. 1 Reply 0 Likes
Any pointers as to what the LEDs are indicating?Continue
Maximum wiring distance between air unit and APM2?
Started this discussion. Last reply by Tye Apr 9. 3 Replies 0 Likes
If I wanted to move the radio away from the APM2 (mounted onto a wing, for example), are there any limitations on the wiring distance between the radio and APM2?Continue
Mark Harrison's Page
Latest Activity
ModeratorMark Harrison commented on Fab - Arduino for Visual Studio's blog post FreeIMU 4.0 and MultiWii - Is your copter trusted enough to fly above your car in a confined space?
ModeratorMark Harrison commented on Chris Anderson's blog post Congrats to Jordi: One of MIT Technology Review's top entrepreneurs under 35 !
"Congratulations Jordi... thanks for all the work that made it possible for me to have my own flying robot!"
Vishal commented on Mark Harrison's blog post APM2 ESC startup problem and workaround"Vernon, the problem only happens when using APM2. APM1 doesn't seem to care which firmware is on the ESC's. This tells me that the problem is indeed with the APM board and not to do with the esc's. "
Vernon Barry commented on Mark Harrison's blog post APM2 ESC startup problem and workaround"Just a question, but the real problem is the firmware on the ESCs. The problem is we use these off the shelf, universal ESCs, designed to go into a program mode on a certain startup sequence, hence why I started a whole thread after I found out…"
dudz commented on Mark Harrison's blog post APM2 ESC startup problem and workaround"On my Y6 I have 4x Hobbywing 30A esc's, and 2x the same brand and tech but they have two capacitors instead of one (newer model)... I have this issue with the two new model ESC's on channel 5 and 6. In CLI under setup/motors they all spin…"
ModeratorMark Harrison commented on Sam Kelly's blog post New product! The 3DR Radio Telemetry System
"@Darro, so far I've not bricked the radios, and they continue to work well."
ModeratorMark Harrison commented on Simone Chiaretta's blog post The Towel, a super-cheap airframe from The Brooklyn Aerodrome (via Make Magazine)
"Otto Dieffenbach has a posting showing a shape that reduces prop slot noise. There's a video as well. If for no other reason watch it to see his flying duck model!
http://www.rcgroups.com/forums/showthread.php?t=1608266
"
ModeratorMark Harrison commented on Jack Crossfire's blog post Kickstarter thoughts
"btw, I'm plenty satisfied with my initial kickstarter project support, some crazy guy named Trent posting RC videos on the net!
http://www.kickstarter.com/projects/1013469813/mygeekshow-get-into-rc-airplanes"
ModeratorMark Harrison commented on Jack Crossfire's blog post Kickstarter thoughts
"I think the payment rules are by Amazon. If you exceed $20,000 in gross sales AND you have 200 or more transactions Amazon will file a 1099-K for you. This will presumably be offset by business expense deductions from your kickstarter…"
ModeratorMark Harrison commented on Mark Harrison's blog post Strain Relieving Case for 3DR ground module
"@John, I haven't done a lot of comparison, but the signal seems to be strong for my LOS flying so far."
ModeratorMark Harrison commented on Mark Harrison's blog post Strain Relieving Case for 3DR ground module
"@Veikko: Ryan is correct, I'm using VMWare. I use VMWare for some other things (linux development), so it was convenient to use VMWare for this as well. I think both it and Parallels are fine ways to run the planner on a mac.…"
ModeratorMark Harrison commented on CrashingDutchman's blog post X550 Glass Fiber Quadcopter frame 550mm
"@CrashingDutchman, is this your own review, or have you just copied it from the HobbyKing page?"
Ryan Alexander Bahr commented on Mark Harrison's blog post Strain Relieving Case for 3DR ground module"@ Veikko
Looking at his icons, it seems like he is using VMWare. I use Parallels 7 on my Mac, and I use VMware on PC. Overall I enjoy Parallels tenfold over VMWare, but VMware is better if you plan to move your virtual machines across PCs quite…"
"Ok I installed an ESC with a bigger, 5A SBEC. I have the option of outputting 5, 5.5, or 6V to the APM. Which voltage would be best?"
"Have you seen any extra noise on the ground side from having the Tx on your laptop?"
"@Anderew Hmm, thanks for pointing that out. I hadn't noticed any problems but it looks like I should upgrade my ESC / BEC.
I tried another distance run this passed weekend trying to get to about a mile. The signal got pretty low at around…"
Profile Information
- About Me:
- - working as software engineer, experienced programmer
- living in piedmont, ca
- moderate embedded programming and arduino coding experience
- email: mh@pixar.com feel free to drop me a line!
- Tell us a bit about your UAV interest
- - interested in meeting east bay ardupilots
- started in RC places in Summer 2010
- blogging at http://eastbay-rc.com
- currently working on the Arcticopter project.
goal: multicopter AP platform for high-end DLSR, remote photoshoots
details: http://eastbay-rc.blogspot.com/search/label/arcticopter
- Hometown:
- Piedmont, CA
Mark Harrison's Blog
Strain Relieving Case for 3DR ground module
Posted on April 29, 2012 at 12:28am 7 Comments 3 Likes
Prompted by Andreas M. Antonopoulos' comment regarding the possibility of breaking off the USB connector, I made a strain relieving case that also makes it easy to conveniently mount the module on the back of my laptop.
Details here:…
ContinueReviewing Open Source Hardware cardboard boxes
Posted on April 21, 2012 at 5:42pm 8 Comments 2 Likes
With the arrival of my 3DR radio, I discovered that I had quite a collection of boxes from open source hardware companies. I think it's safe to say they may be setting the pace in the world of electronics delivery packaging!
details here:…
Continue3DR Radio, First Impressions
Posted on April 21, 2012 at 5:38pm 31 Comments 4 Likes
I'm thrilled to report that my radio kit arrived and it works well. Andreas is likewise happy with his kit.
Writeup here:
http://eastbay-rc.blogspot.com/2012/04/review-3dr-900mhz-radio.html
Fixing the air unit…
ContinueiPhone/Android RC Controller
Posted on April 21, 2012 at 2:08am 10 Comments 2 Likes
If you're like me, you've been asked plenty of times if your RC unit can be controlled by an iPhone. Now you may be able to answer yes!…
Comment Wall (1 comment)
- At 3:30pm on April 7, 2011,
Anil Kumar. M said… - I've checked all the below and are correct.
- is the software configured for X and not + copter?
- is your "front" orientation correct on your board?
- is your board mounted right side up?
- do you have the CW and CCW props attached to the correct motors?
I've checked the manual from kkmulticopter and http://rcexplorer.se/page14/kkguide/kkguide/quad.html
Contests
Season Two of the Trust Time Trial (T3) Contest has now begun. The third round was a reliablilty/aerial photography round for both planes and copters, which is now closed. Stay tuned for the next round, beginning soon.A list of all T3 contests is here.
Top Content
Groups
-
German Ardu-Group
32 members
-
UK Ardupilot Group
18 members
-
Learning to program the …
32 members
-
ArduCopter (traditional …
109 members
-
ArduCopter Italian Group
22 members
© 2012 Created by Chris Anderson.
