mmormota
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centripetal acceleration compensation

Started this discussion. Last reply by William Premerlani Oct 9, 2010. 2 Replies

RollPitchYaw demo

Started this discussion. Last reply by mmormota Nov 25, 2009. 3 Replies

avrdude

Started this discussion. Last reply by geir Oct 19, 2010. 2 Replies

 

mmormota's Page

Latest Activity

mmormota replied to Mamoon Syed's discussion High Definition, Low-Latency FPV?
"Check my sample video (Hides HV-310): https://vimeo.com/104337989 The output power is only 1mW, so don't expect high range without amplifier."
Mar 25, 2015
mmormota replied to Kelvin Tan's discussion Kickstarter long range hd fpv and telemetry - too good to be true?
"Please show us pictures of the actual device(s), technical details (compression, latency, modulation, power, antenna etc), demo videos recorded on earth (how clear and smooth, choppy or not, what happens if there are temporary dropouts) and so on.…"
Jan 20, 2015
mmormota added a discussion to the group Andropilot Users Group
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Mavlink questions

I am working on connecting  my own controller panel to Andropilot using Mavlink and Bluetooth. Most functions are working, however I have some questions:- the red "Looking for radio" warning keeps on screen after Bluetooth connection, the HUD, Map etc. is working, following the incoming mavlink data.Is it normal, or I missed something?- the small aeroplane on the MAP is always heading to North.Is it normal? The heading in the HUD is working. (in QGroundControl the heading of the small plane…See More
Nov 12, 2013
mmormota commented on Tim Nilson's blog post Carl Zeiss "Cinemizer" OLED Goggles for FPV Use
"Hope it is not vaporware... It shown up on IFA2010, but nothing happened after the expo. I definitely buy one when (or if) it will be available."
Jul 20, 2011
mmormota commented on Roberto Navoni's blog post What IDE Do you prefer for Multipilot32 - Ardupilot32 ? Arduino like Framework vs CooCox for Arm MicroController .
"Arduino is simple and rather good for the first steps. It's easy and effective for simple projects.   But the lack of debugging is just not acceptable for larger projects. You have to figure out tricks for testing code parts, blinking…"
Jan 23, 2011
mmormota commented on Roberto Navoni's blog post What IDE Do you prefer for Multipilot32 - Ardupilot32 ? Arduino like Framework vs CooCox for Arm MicroController .
"Installing Eclipse is easy, but plain Eclipse is not an Arm IDE. Selecting the proper plugins, and configure them is the real problem. There are different version of Eclipse, different toolsets and plugins. Not all of them working together. There…"
Jan 22, 2011
mmormota commented on Roberto Navoni's blog post What IDE Do you prefer for Multipilot32 - Ardupilot32 ? Arduino like Framework vs CooCox for Arm MicroController .
"Coocox supports jtag, but only two proprietary adapters: Colink (ftdi variant) and ColinkEx (using an ARM uC). It's Eclipse based, so the functions are similar.   What I like in Coocox: - free and unlimited - easy to install on Windows (to…"
Jan 22, 2011
mmormota commented on Roberto Navoni's blog post Arducopter NG and Multipilot 2.0 / Ardupilot32 #1 Weekly Updates
"The rendeingr made from an Eagle pcb? If yes, could you please tell me the library items for the miniUSB connector and the right angle pin headers? I just finished a pcb and I like to make a nice rendering too, unfortunately I can't find the…"
Jan 16, 2011
mmormota commented on Blake Krone's blog post Remzibi OSD + APM Integration
"The horizon tilts to the wrong side. ;-)  "
Jan 15, 2011

T3
William Premerlani replied to mmormota's discussion centripetal acceleration compensation
"Hi mmormota, You are correct, centripetal acceleration compensation should be based on airspeed, not ground speed. That is on my list of revisions to make to MatrixPilot, which currently uses ground speed. The present method based on groundspeed…"
Oct 9, 2010
mmormota replied to mmormota's discussion centripetal acceleration compensation
"Of course the sign of the acceleration value is important (compensate to the left or right). However I think first check if the basic idea is OK, and such details later."
Oct 9, 2010
mmormota posted a discussion

centripetal acceleration compensation

If I understand well, the current centripetal accelaration compensation is based on the d_fi / d_t from the z gyro and the v coming from the gps. I think it's only correct if there is no wind, because computing the acceleration this way requires the speed relative to the circle center. If there is wind, this is not the case and the correction is inaccurate.(Easy to prove it considering a plane flying in a circle with a speed 100km/h relative to the air, and the wind is 100km/h too. Then the gps…See More
Oct 9, 2010
mmormota commented on Sys-Ak's blog post Crash 4 Sure: integrated Autopilot & OSD
"Thank you all for the kind words. Sys-Ak is sleeping now - I try to answer the questions. Are you doing video sync generation and all of that stuff with software? Yes. A DMA channel feeds the SPI port so the core loading is minimal. Is video…"
Sep 21, 2010
mmormota commented on mmormota's video
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Crash4Sure_testflight1

"It's just a test board (Olimex STM32-H103), no pcb layout yet. The sw handles 4ch in and 4 out, or ppm in and 7 ch out. Capture-compare registers on all channels to avoid jitter."
Sep 2, 2010

Developer
Mark Colwell commented on mmormota's video
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Crash4Sure_testflight1

"ARM cortex performs all these tasks well, nice system how many ch?"
Sep 2, 2010
mmormota posted a video
Sep 2, 2010

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About Me:
I am EE, my job is uC hw-firmware development

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