12 comments on “Arduemetry

  1. Chris-

    Yes, I’m working on cleaning up my code and will release a complete package with different example uses for my hardware. Most of the code I use is attributed to others and it will be commented as such. Right now I’m more interested in making a good hardware platform that I/others can write whatever necessary code for it depending on what it’s used for.

    Thanks for your interest!


  2. Chris-

    Are there any specific functions you would like to see implemented in the code? The board can do so many things so I just wondered if there were certain features you’d like to see firmware for.

  3. Looking at the APRS code from the Trackdunio project, EVERYTHING is in the “.h” files. I have not worked on editing code in those type of files and would like to work on moving some of that stuff into the PDE file (IE: All the config information). Just wanted to look at your code to see if you had made any of those type of changes. Then I plan to expand the sensors for temp, current, voltage, etc.

  4. So I have the code from the trackunio site running on my Arduino and attached to the radio. Radio keys up and using another radio can hear the TX. Using a APRS base station, i’m testing decoding the packets and that’s a no go. So i’m not sure if it’s an issue in the code, timing or hardware….

  5. Chris-

    I have posted the firmware I used to get APRS going. It is the Trackuino code organized as a .pde with libraries. You will have to adjust the pin definitions accordingly depending on which PWM output you use. I changed some settings in the modem.cpp file as well as the config.h file in the libraries folder. For my setup, I am using a serial GPS along with the MX146 radio on a 3.3V/8MHz Arduemetry board. For your testing, does the modem audio as received on the other radio sound like other APRS stations? Also, I ran into a problem when I used the NewSoftSerial library along with the Trackuino code. Interrupts from the NewSoftSerial library break the modem output. Once I disabled that, the modem audio came out right and the APRS packets were decoded properly.

  6. It sounds like I need more volume, otherwise it sounds about right on another radio. Right now I’m using a Kenwood TH-79A radio, so I had to change the PTT from LOW to TX to HIGH for TX on that radio. So I’m starting to think there may be an issue with feeding the audio to this radio. I don’t have connectors for my Yaesu HT radio to use it as a TX test… Thank you for posting the code.

  7. I suspect I’m over driving the radio audio in, so I will see what happens after i adjust that.

  8. Do you have any idea where to get an SRB-MX146? Argent Data doesn’t have them in stock and says they’re apparently having problems making them. Or, if I can’t find that, any suggestions for a replacement radio? Thanks much.

Leave a Reply

Your email address will not be published. Required fields are marked *