Ardu-IMU-Pilot firmware ready for beta test!

I have completed ground testing on the new firmware I have written for ArduPilot to use ArduIMU in place of the thermopiles. It has been snowing here and I probably won't get to fly the code for a bit, but figured others might be interested in giving it a try at this point. This firmware will probably exist on a temporary basis, with the code getting incorporated into the regular ArduPilot firmware in the future. If there is sufficient interest in this approach I will consider working on a ArduPilot shield board that would add the pressure sensors to ArduIMU and package it all as a shield.

I will maintain the code for a while in a repository at http://code.google.com/p/ardu-imu-pilot/

If you try it out give me your feedback. It is similar to ArduPilot 2.4 but uses a different header file.

To interface ArduIMU to ArduPilot you connect the gps (ublox only) to ArduIMU, provide common power and ground to ArduPilot and ArduIMU, and connect the serial output pin of ArduIMU to the serial input pin of ArduPilot.

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Comments

Yves Gohy January 11, 2010 at 9:21pm

Hello, you can use your FTDI directly connected to the Ardupilot. So you can test your ground station.
Fouad January 11, 2010 at 5:52pm

Hello everybody,
I'm new at this wonderful world,

I'm trying to run run Ardupilot + arduimu + xbee pro 2.4
So in addition to the above connections, I also have the xbee modules configured for 38400 and connected gnd, 5v , xbee rx pin to ardupilot shield -ve,5v, out pin (5th from gps connector)
I get gps fix (solid blue led on the imu) but the ground station displays nothing, also the xbee seems to emit nothing (terminal program showed nothing)
I only connect the xbee module to the ardupilot after about 30 sec of the powerup.
The same set of xbee(s) I'm using for paparazzi, the only change I did was to change the baud rate to be 38400.
Can anyone help?
Thanks.
Developer

Doug Weibel January 10, 2010 at 4:36pm

Hey Yves, One of my Ublox quit working and I was just about to search for the info on how to hook it to the ftdi cable to see if it lost its configuration. Thanks!
Yves Gohy January 10, 2010 at 10:52am

Wiring between Ardupilot and Arduimu.
Yves Gohy January 10, 2010 at 10:49am

Wiring configuration for GPS Ublox5 with cable FTDI.
Yves Gohy January 10, 2010 at 7:19am

Everything is ok now, do not connect TX line from Adupilot on RX Arduimu.
Yves Gohy January 9, 2010 at 12:46pm

Hi, the configuration file ublox5_helix_v11.txt is it good? Because I have no GPS fix on Ardupilot, though of course the Arduimu. I am using the latest version of http://code.google.com/p/ardu-imu-pilot/.
Thank you.
Yves Gohy January 8, 2010 at 11:44am

Ok, thank you for the quick response. I'll try that tomorrow.
Developer

Doug Weibel January 8, 2010 at 11:36am

Just connect ArduPilot as if using it with thermopiles (you can leave the thermopiles off), connect the gps to ArduIMU instead of ArduPilot, provide power to ArduIMU using a common ground with arduPilot, and connect the serial output pin of ArduIMU to the serial input pin of ArduPilot.

As a note, I am not developing this firmware any longer as I am working to incorporate the good stuff here into the ArduPilot 2.5.1. That may be released this month with any luck.
Yves Gohy January 8, 2010 at 11:33am

Hello, would you have a little plan for connections between Ardupilot and Arduimu, or a photo of the finished assembly. Thank you.
And congratulations again for the code.

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