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I2C sonar: MaxBotix MB1242 with Arducopter 2.9.1

Started this discussion. Last reply by DavooD Apr 10, 2013. 2 Replies

Hello Arducopter Community,I just got an Maxbotix MB1242 I2CXL-MaxSonar EZ sonar.(As free replacement for my MB1200 sent to Maxbotix, see…Continue

Tags: alt, hold, I2C, 2.9.1, maxbotix

APM2Board: XL MaxSonar EZ0 problems

Started this discussion. Last reply by Thomas J Coyle III Feb 11, 2013. 3 Replies

I noticed some strange behaviour of the MaxSonar EZ0 in combination with the APM2 board, firmware 2.9.1:1) Outdoor test, during flight, the data recorded from the sonar is invalid (no valid data at…Continue

Sonar Problems MB1200 XL-MaxSonar-EZ0 / Arducopter 2.9.1

Started this discussion. Last reply by DavooD Mar 29, 2013. 8 Replies

Thanks for the new 2.9.1 firmware!Flying stability is much better than before...(STABILIZE, LOITER; ALT_HOLD) tested successfully with DEACTIVATED sonar.Using the 2.9.1 firmware, the copter is very…Continue

Tags: Sonar, /, 2.9.1, Arducopter

 

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Latest Activity

DavooD replied to DavooD's discussion I2C sonar: MaxBotix MB1242 with Arducopter 2.9.1
"Ok, perfect, thanks!"
Apr 10, 2013
R J Hamlett replied to DavooD's discussion I2C sonar: MaxBotix MB1242 with Arducopter 2.9.1
"Have you looked at: <https://github.com/diydrones/ardupilot/pull/125>; This was a guy working on code for the I2C sonar, and I'd ask him how he was getting on. Best Wishes"
Mar 29, 2013
DavooD replied to DavooD's discussion Sonar Problems MB1200 XL-MaxSonar-EZ0 / Arducopter 2.9.1
"Maxbotix just sent me a free I2C sonar MB1242 as replacement for the MB1200.Anyone has experiences to make it work?See  http://diydrones.com/forum/topics/i2c-sonar-maxbotix-mb1242-with-arducopter-2-9-1DavooD"
Mar 29, 2013
DavooD posted a discussion

I2C sonar: MaxBotix MB1242 with Arducopter 2.9.1

Hello Arducopter Community,I just got an Maxbotix MB1242 I2CXL-MaxSonar EZ sonar.(As free replacement for my MB1200 sent to Maxbotix, seehttp://diydrones.com/forum/topics/sonar-problems-mb1200-xl-maxsonar-ez0-arducopter-2-9-1?commentId=705844%3AComment%3A1153859&xg_source=msg_com_forumsee)…See More
Mar 29, 2013
Gary McCray replied to DavooD's discussion Sonar Problems MB1200 XL-MaxSonar-EZ0 / Arducopter 2.9.1
"Reality is that anything other than the Max 1240 or 1340 is almost impossible to get to work right. I have a 1200 that works pretty well, but it is still noisy and problematic. The 1240 or 1340 are the ones recommended by Maxbotics and they are much…"
Mar 5, 2013
Rich Huhn replied to DavooD's discussion Sonar Problems MB1200 XL-MaxSonar-EZ0 / Arducopter 2.9.1
"Thanks Richard. I looked at my logs and typical hover throttle is ~500 with a fresh battery, and creeps up to around ~640 as the battery drains. I will try adjusting the Thr_Mid up to maybe 580 and see what happens when I get out again…"
Mar 5, 2013

T3
Richard Boyhan replied to DavooD's discussion Sonar Problems MB1200 XL-MaxSonar-EZ0 / Arducopter 2.9.1
"Turn of your sonar when trying to maintain altitude. Sonar us best for terrian following like climbing atairs or avoiding hedges. Also just to let you know, sonar does not work in cold weather. There is also a Thr_Mid that lets you set your mid…"
Mar 4, 2013
Rich Huhn replied to DavooD's discussion Sonar Problems MB1200 XL-MaxSonar-EZ0 / Arducopter 2.9.1
"Davood- Were you able to solve your problem? I seem to be having the same issue. 2.9.1 firmware, MB1200XL sonar, QAV500 style frame, 1045's, etc. Sometimes ALT-HOLD works great, usually on my first few minutes of flying for the day. Then after…"
Mar 4, 2013
Bill Patterson replied to DavooD's discussion Sonar Problems MB1200 XL-MaxSonar-EZ0 / Arducopter 2.9.1
"Increase your throttle mid point in the Mission Planner. "
Feb 23, 2013
Apone replied to DavooD's discussion Sonar Problems MB1200 XL-MaxSonar-EZ0 / Arducopter 2.9.1
"hiI also noticed that I sometimes do this defect,if the active sonar from CH7, first active sonar and after ALT-OLD,if active sonar before, and after ALT-OLD sometimes does that defect. https://www.youtube.com/watch?v=8CsvBT_psvg"
Feb 20, 2013

Admin
Thomas J Coyle III replied to DavooD's discussion APM2Board: XL MaxSonar EZ0 problems
"@DavooD, Glad to be of help. Hope that they replace it quickly. Regards, TCIII"
Feb 11, 2013
DavooD replied to Harley Engholm's discussion Altitude hold
"Could be that Naza is the "plug and play" solution. But its also much more expensive and closed source! I like Arducopter because of the open source spirit (voluntary developers and testers, very active community, no licence fees, ...) Use…"
Feb 11, 2013
DavooD replied to Harley Engholm's discussion Altitude hold
"@Harley Engholm:23% of full throttle for hovering is veeery low!Your copter must have a lot of thrust.The default "deadband" for the 2.9.1 firmware is between 40% and 60% of max throttle.This means that ALT_HOLD will hold the altitude only…"
Feb 11, 2013
DavooD replied to DavooD's discussion APM2Board: XL MaxSonar EZ0 problems
"Hi Thomas Very interesting link, thanks a lot for this information!The description fits 100% my issue!Just contacted Maxbotix to get the sonar replaced.I keep you up to date... Regards, DavooD"
Feb 11, 2013

Admin
Thomas J Coyle III replied to DavooD's discussion APM2Board: XL MaxSonar EZ0 problems
"@DavooD, I believe that this is the answer to your outdoor problem: http://www.diydrones.com/forum/topics/maxbotix-xl-ez0-mb1200-sonar-sensor-stops-working-at-low Regards, TCIII"
Feb 10, 2013
DavooD posted a discussion

APM2Board: XL MaxSonar EZ0 problems

I noticed some strange behaviour of the MaxSonar EZ0 in combination with the APM2 board, firmware 2.9.1:1) Outdoor test, during flight, the data recorded from the sonar is invalid (no valid data at all)2) Indoor test, the data looks ok. (board powered from USB)I already tried the following steps to resolve the issue:- power filter (capacitor, resistor)- alternative mounting of the sensor-…See More
Feb 10, 2013

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