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Er9x transmitter now with MavLink

Posted by Earl on March 19, 2012 at 9:30am

3689448874?profile=original

The er9x transmitter now will display MavLink data on the LCD.

Gerard Valade a DIYdrones member wrote the software and myself who was the principal debugger.

Works at 19200 and 38400 baud. Still have a problem with 57600 baud. Some kind of timing issue yet.

Here is a pic of the arduplane 2.30 MavLink display on the er9x.

There is an Xbee inside the er9x to receive the MaveLink data from the APN2.0 purple board.

We will post the er9x firmware soon.

Earl

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Comments

  • Earl March 20, 2012 at 6:43pm

    @Pete

    The compile for the ardupilot program ? and 38k works ok

    earl

  • Developer
    Pete Hollands March 20, 2012 at 1:03pm
    The arduino serial library seems to have had a specific baud rate generator issue at 57600.
    Fixed in latest arduino ide.
  • Earl March 20, 2012 at 10:28am

    I forgot to point out the LCD backlight mod and the Smartieparts programmer board !

    Earl

  • Earl March 20, 2012 at 10:26am

    3692377450?profile=originalYou see my er9x is loaded ! Has a Spectrum TX module to fly my Blade Mqx quad.

    You can see the 3.3vdc regulator and Xbee.

    I have a Walkera TX module the same size as the Spectrum module I am going to add also.

    With all the antennas poking out, my Er9x is beginning to look like a porcupine !

    Earl

  • Earl March 20, 2012 at 9:58am
    My er9x runs on 7.2vdc so I have a new 3.3v regulator on the 7v line. This is to ensure the XBee has the power it needs on transmit and that the er9x doesnt brown out. My 900mhz XBee is a 60mw out unit. If XBee used on rx only, you could run it on 3.3v inside er9x, I would not do that tho. A new regulator is so easy so I recommend doing it that way.
    Earl
  • Brian Donovan March 19, 2012 at 11:46pm

    Hi Earl

    I flashed the unit and it looks great. Appreciate the post.

    A few questions if you would be so kind.

    1. No problem on the TX and RX

    2. Where is the best place to pull VCC and GND for XBee . Off the pins on the Mega 21/22 or 52/53 (same potential?) or elsewhere?

    3. Assume it is only the 4 pins required from XBee being Vcc, GND, RX, TX

    Thanks

    Brian

  • Joseph Reynolds March 19, 2012 at 10:29pm

    Found this little sucker, says it's for cell phones.  could I just run a cable from the antenna port of the xBeePro 900 RPSMA to the "input" of that 3W 900mhz amplifier? Will this allow me to push way-point updates to my air frame from miles away, just like the Long Range UHF systems for the 9x

  • Earl March 19, 2012 at 9:58pm

    yes.

    Can you tell i have taken my night pills ?

    Earl

  • Joseph Reynolds March 19, 2012 at 9:52pm

    LOL, nice... ok that makes sense which means "NO" you are not pushing everything over that Xbee link.  Is the er9x still transmitting to it's own data to the Rx on the air-frame?

  • Ellison Chan March 19, 2012 at 9:52pm

    You should display a QR code, and then we can use our phones to actually interpret the data: :-)

    images?q=tbn:ANd9GcQncGI8FA5lT_dscTPv5JdFiYmQQBIBANqJQN9Zp2hpcqGbQU_8Ew

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