Maik
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  • Geoffrey L. Barrows
 

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Latest Activity

Maik commented on Mario's blog post Meet the prototype number 2 of the ultimate airframe platform for quad experimentation and development
"I could imagine this being better for certain applications than a heli. To get a high forward speed with a heli, you have to tilt it forward a lot. Here, you just tilt the props, which lessens requirements on your camera mount."
Oct 7, 2010
Maik commented on Curt Olson's blog post Elevator Gain Tuning
"Aww, thanks for the long post. Sorry if I wasn't clear. I am aware of what the different components do, just wondered aloud why most guides mainly address the proportional part. What are your thoughts on using fuzzy logic?"
Sep 11, 2010
Maik commented on Curt Olson's blog post Elevator Gain Tuning
"Why do pretty much all practical guides only address the P part of PID controllers? Is it that setting them up gives a good-enough response in real life? Curt, I like your sim a lot and have been toying around with an autopilot (coupled to…"
Sep 11, 2010
Maik commented on Tj Bordelon's blog post Landing patterns and reverse thrust!
"Are you using the ESC braking functionality? Most car ESC, and many plane ESC do have that."
Sep 10, 2010
Maik commented on Tj Bordelon's blog post Landing patterns and reverse thrust!
"If you can, set up some smoothing on your throttle, so you don't go from full forward throttle to full backward throttle. Otherwise I could imagine quite a bit of stress on the prop, motor and motor mount."
Sep 10, 2010
Maik commented on Tj Bordelon's blog post Landing patterns and reverse thrust!
"If you modded your EasyStar with ailerons, you can also do a controlled slip to slow down. Pull the ruder and use the ailerons to keep the wings horizontal. Or you can use your ailerons as speed brakes, but then you reduce your aileron travel."
Sep 10, 2010
Maik commented on Tim Trueman's blog post Call for podcast guest suggestions (numero dos)
"Yeah, I third the Paparazzi suggestion. Would like to hear what they're working on, where they're heading, what their thoughts on all the new open-source autopilots are & would like to hear a couple words about a common telemetry…"
Jul 14, 2010
Maik commented on Geoffrey L. Barrows's blog post User programmable sub-gram optical flow / vision sensor
"And atleast Paparazzi has a pretty good wind estimation, which might make it sufficiently precise for a soft landing. Cool stuff. Geoffrey, how well does the OF algorith cope with flying above water or grass? I could imagine that it's a way too…"
Jul 7, 2010
Maik commented on Geoffrey L. Barrows's blog post User programmable sub-gram optical flow / vision sensor
"I wonder, could you come up with a clever way to use those to make landing smoother? Something about reading the apparent speed of the ground passing by (in pixels per second), comparing that to the actual ground speed, thus being able to measure…"
Jul 7, 2010
Maik commented on Melih Karakelle's blog post UAV like video with Depron Plane
"Is flying with the chance of people being nearby really necessary? I know it is tempting, but I'd still call it stupid, sorry."
Jun 14, 2010
Maik commented on Jason Lyons's blog post Setbacks and Batteries
"I never have had troubles with HobbyKing batteries... I watch them closely upon the first charge, but that's about the only precaution I take."
Jan 22, 2010
Maik commented on Sentinel's blog post Borjet MAJA CAD Model
"Check out the discussion on RCgroups. My nick there's hoepfel."
Jan 19, 2010
Maik commented on Sentinel's blog post Borjet MAJA CAD Model
"If you need measurements, I've got a Maja sitting here as well. Am not too happy with it though."
Jan 19, 2010
John Gantner commented on Maik's blog post Using the G1 as GPS provider & telemetry for logging or transmitting to ground station
"Good luck with your project. Phones can certainly handle it, but the problem lies with the providers - many block anything other than HTTP (especially WAP APNs). I'm uncertain whether this limitation exists on the "Internet" APNs that…"
Jul 8, 2009
Maik commented on Maik's blog post Using the G1 as GPS provider & telemetry for logging or transmitting to ground station
"Even though I don't know when I'll get to this (this is more of a side project), I will let you know. But I'm surprised that you aren't able to establish a tcp connection (which is streaming)... I know that some ports are…"
Jul 8, 2009
John Gantner commented on Maik's blog post Using the G1 as GPS provider & telemetry for logging or transmitting to ground station
"I'll be watching your efforts intently - I am very interested in hooking stock cellphones up to MCU boards. I use bluetooth to connect between the phone and the board, then GPRS to connect to the remote server. One obstacle I ran into was that…"
Jul 8, 2009

Maik's Blog

Using the G1 as GPS provider & telemetry for logging or transmitting to ground station

Posted on July 8, 2009 at 11:00am 3 Comments

We are getting started with ArduPilot and a R/C car to slowly warm up to the autonomous stuff and getting acquainted with ArduPilot. So to keep costs low, we will use my rooted T-Mobile G1 to provide GPS coordinates, accelerometer data, to make a movie, transmit over WiFi or GPRS/UMTS etc. Because I'm lazy I'll just cross-post from xda-developers. The beauty of it is that the serial output from… Continue

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