Luc van Helfteren
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Software Defined Radio for AV rx?

Started this discussion. Last reply by Luc van Helfteren Oct 31, 2012. 2 Replies

I saw this post on hackaday: …Continue

433 Mhz radios will bind, and config utility works but no heartbeat

Started this discussion. Last reply by Marcelo Brisac Jan 1. 27 Replies

Hi,I recently purchased a pair of 433mhz telemetry units and they do not seem to be working.The radios pair with each other, and I can configure them (including the remote one) with the 3DR config…Continue

Tags: telemetry, radio, 3dr, 433

Optical Flow PID settings

Started this discussion. Last reply by Luc van Helfteren Jul 17, 2012. 2 Replies

My copter is running the 2.6 default PID settings, which seem pretty good for stabilise, but loiter wanders quite a bit. I installed an optical flow sensor, and now when i enable OF_LOITER, the…Continue

Tags: optical flow, OF_LOITER, PID, loiter

GPS not working

Started this discussion. Last reply by Luc van Helfteren Jun 22, 2012. 10 Replies

I have an APM 2 and the GPS functionality is not working at all. The blue 3d fix light never comes on, solid or blinking.When I run gps in test from the CLI i get G! G! G!The board is brand new and…Continue

Tags: APM2, GPS

 

Luc van Helfteren's Page

Latest Activity

Marcelo Brisac replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"Hi, in my case, it turned out that the cable that connected the radio to the APM was messed up. I stated checking the connections from the back of the APM to the back of the radio using an Ohm-Meter and I found out that some of the connectors where…"
Jan 1
Alexander Casassovici replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"Hi guys,  I have the same issue - how / where do I send my board for relacement (bought on jdrones.com from france) Alex"
Dec 31, 2012
Marcelo Brisac replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"I think I have the same problem. Radio seems to connect (both lights solid green).  Modem even responds to ATI or RTI commands input in terminal. I can load setting from both radios in mission planner. I tried changing baud rate on both radios,…"
Nov 18, 2012
Alexander Casassovici replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"I think so - it's written 3DR radio on it :) http://code.google.com/p/ardupilot-mega/wiki/APM25board <= new wireless telemetry port"
Nov 8, 2012
Jason replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"This may be silly question but did you make sure you plugged it into the correct port on your APM? My board (2.5) has two ports that are the same and I plugged my radio into the wrong port and had the same error."
Nov 8, 2012
Alexander Casassovici replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"nope still in a dead end :( have tried it all just can't connect that module :(:("
Nov 6, 2012
Luc van Helfteren replied to Luc van Helfteren's discussion Software Defined Radio for AV rx?
"Hmm, what about with a big antenna and an amplifier? I also saw this: http://hackaday.com/2012/10/24/building-a-better-software-defined-radio-and-transmitting-as-well/ which theoretically could lump all my comms (RC, Telem & AV) onto one…"
Oct 31, 2012

Developer
Andrew Tridgell replied to Luc van Helfteren's discussion Software Defined Radio for AV rx?
"Hi Luc, The RTL2832 based dongles typically go up to around 2GHz, so you couldn't use them for 5.8GHz. You could write a GNU radio graph to receive the 3DR-900 or 3DR-433 signals for telemetry, and that would be an interesting exercise, but…"
Oct 30, 2012
Luc van Helfteren posted a discussion

Software Defined Radio for AV rx?

I saw this post on hackaday: http://hackaday.com/2012/03/30/working-software-defined-radio-with-a-tv-tuner-card/Could you feasibly use one of these for receiving AV from a 5.8ghz transmitter?See More
Oct 30, 2012
Alexsey Novik replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"eject usb, push reset button on apm and it will work remove props!! it lost radio calibration in my case and motors start to rotate had the same problems"
Oct 27, 2012
Alexander Casassovici replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"having the same problem Just started building my new copter with the 3dr radio and all ... and exactly same symptoms :/ only in my case going 115 hasn't (yet) solved it - will try again tomorrow I guess..."
Oct 24, 2012
Norayr Aslanyan replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"Have the same issue which can be solved by changing baud rate (Thanks Stanley for that).I am wondering is there any other solution?It was working perfectly yesterday, but after updating mission planner and arduplane it stops working with 57 baud…"
Sep 24, 2012

3D Robotics
Chris Anderson replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"I think that's a hardware problem. The multiplexer is supposed to switch to the wireless telem port (and the settings for that, which include 57k) when the USB is unplugged. It sounds like yours isn't switching, which means that…"
Aug 9, 2012
Stanley Pisarski replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"I am using the UART marked U0/U2.  The one that is called out in the instructions for the APM2 and the 3d robotics radios on the 3d robotics web site. Stan Pisarski"
Aug 9, 2012

3D Robotics
Chris Anderson replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"Stanley, that's bizarre. Are you using the standard telem port for the 3DR radio? It's hard to understand that, since 57k is hard-wired for that port. "
Aug 9, 2012
Stanley Pisarski replied to Luc van Helfteren's discussion 433 Mhz radios will bind, and config utility works but no heartbeat
"This is what happened in my case.  Temporary solution in my case described below.....I have found the problem.  It relies with the APM2 board.  No matter what baud rate I set the APM2 for telemetry using the usb cable and mission…"
Aug 9, 2012

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