JJ Blackwood
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JJ Blackwood's Discussions

Reversed polarity on current sensor setup - how bad is it?

Started this discussion. Last reply by Jon von Weymarn Oct 14, 2012. 4 Replies

Today while hooking up my hot-off-the-presses current sensor I made a mistake: I soldered the 3-pin header into the wrong position on the IMU, and didn't catch it before I attempted to hook up the…Continue

ArduPilot/V2 IMU works great, adding shield loses IMU/GPS data

Started this discussion. Last reply by Doug Weibel Jul 1, 2010. 9 Replies

Hello All,For starters, thank you to everyone in the community and the founders for the great work on this project - I recently purchased the full ArduPilot, V2 shield, V2 IMU and uBlox GPS and been…Continue

 

JJ Blackwood's Page

Latest Activity

Jon von Weymarn replied to JJ Blackwood's discussion Reversed polarity on current sensor setup - how bad is it?
"I am also wondering if you were able to rescue your gear?Also I am wondering which component is the fuse? Quick googeling didnt give the answer..."
Oct 14, 2012
Antonio Arns replied to JJ Blackwood's discussion Reversed polarity on current sensor setup - how bad is it?
"Hi how you solve this? I`m with the same problem."
Jun 6, 2012
JJ Blackwood commented on Scott Plunkett's blog post New GoPro cam for all you drone photogs - Is this your next cam?
"After turning my HK EPS FPV into a non-controlled submarine at the beach this weekend I've ordered the GoPro2 - it should be here this week. I'll post up some vids once I get it..."
Oct 24, 2011
JJ Blackwood commented on Hooks's blog post China copy Ardupilot mega - ½ price!
"Chris, Jordi, and the rest of the crew could be making 990% profit for all I care, at the price of the current boards for the capability they provide I am (and I'm guessing most others here are as well) an extremely happy customer,…"
May 20, 2011
JJ Blackwood commented on Hooks's blog post China copy Ardupilot mega - ½ price!
"Again a refreshing reminder of what makes this community so unique and powerful - the egalitarian spirit of the founders and a commitment to excellence and advancing the state of the art. Thank you for an excellent post Chris!"
May 18, 2011
JJ Blackwood replied to JJ Blackwood's discussion Reversed polarity on current sensor setup - how bad is it?
"Thank you for the reply - I'll give the FTDI a try tonight. I was a failure analysis engineer for a large part of my career and have given the part a good optical inspection however I don't see any obvious signs of released smoke. I just…"
Mar 14, 2011
DIY Drones Store Support replied to JJ Blackwood's discussion Reversed polarity on current sensor setup - how bad is it?
"Sorry to hear what happened. The only way to test the APM would be to use an FTDI cable and see if you could upload firmware to it or not. But this also doesn't test the PPM encoder and some of the other components on the board like the…"
Mar 14, 2011
JJ Blackwood posted a discussion

Reversed polarity on current sensor setup - how bad is it?

Today while hooking up my hot-off-the-presses current sensor I made a mistake: I soldered the 3-pin header into the wrong position on the IMU, and didn't catch it before I attempted to hook up the current sensor. The net result is that the + battery lead from the current sensor (3-cell lipo voltage) went right to the ground pin ont he IMU, with appropriately non-working behavour from the whole unit.After sorting out the incorrect lead I no longer get much out of the APM/IMU - if I plug the…See More
Mar 13, 2011
4 Comments
JJ Blackwood replied to steve F11music.com's discussion What is the preferred OSD?
"The Remzibi comes with a GPS unit. HappyKillmore has done some integration of the OSD with the original ArduPilot, and it looks like there is some interesting work going on with integrating the APM data with a Remzibi, but as of yet it is not a plug…"
Mar 4, 2011
JJ Blackwood commented on Andrew Fernie's blog post Integration of Remizibi OSD with Ardupilot Ground Station
"I've been struggling with the same issue - same airframe, same hardware, trying to find a way to push GCS data to the Remzibi and Xbee. I like this solution, saves weight in the air and cargospace.   I would like to keep the mah counter…"
Mar 3, 2011
JJ Blackwood commented on Chris Anderson's blog post ArduPilotMega Beta code now live!
"Great work all - playing with the new CLI, this is fantastic!"
Oct 2, 2010
JJ Blackwood commented on Chris Anderson's blog post Parrot, we love you, but is this really the message you want to send?
"It doesn't take much of an irresponsible act to get the whole community tarred with an image that fits the irresponsible party, not the community as a whole. Look at motorcycles - in many states there are mandatory reckless driving…"
Aug 15, 2010
JJ Blackwood commented on Gary Mortimer's blog post New Skywalker
"Sorry Sgt, didn't mean to offend, I just got confused on the information presented, it looks like the pics Hooks showed are for a new unlisted product while the FPV website has a 120cm version in EPS. Being in the market for a new airframe,…"
Jul 6, 2010
JJ Blackwood commented on Gary Mortimer's blog post New Skywalker
"Hello Hooks, On your website it lists the wing as EPS, however in comments it looks like it is EPO - which one comes in the box if I order today ;) ? http://fpvhobby.com/40-168-cm-wingspan-airplane.html Thanks!"
Jul 6, 2010

DeveloperDoug Weibel replied to JJ Blackwood's discussion ArduPilot/V2 IMU works great, adding shield loses IMU/GPS data
"Nathaniel, Dr. Black and everybody - Please see my reply here - http://diydrones.com/forum/topics/imu-v2-to-ardupilot?commentId=705844%3AComment%3A175808"
Jul 1, 2010
JJ Blackwood commented on Chris Anderson's blog post How ArduPilot Mega IMU shields and mainboards are tested
"Fantastic test cards gents - great ingenuity as well - great way to avoid the ghastly price of probecards!"
Jun 10, 2010

Profile Information

Tell us a bit about your UAV interest
I've been flying various RC incarnations for years, this is the next logical step - let the plane fly itself!
Hometown:
Portland, Or

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