Discussions

APM MavLink to FrSky X8R S.Port converter

Posted by Rolf Blomgren on January 24, 2014 at 8:03am

Hi all,

I just bought an FrSky Taranis for my quad copter and needed to get the Mavlink data up on the Taranis LCD telemetry display. So here is my solution using a Teensy3.1 as a converter between MavLink and the S.Port on FrSky X8R.

See attached file below...

MavLink_FrSkySPort_1.3.zip

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Replies

LTMNO February 24, 2014 at 9:05am

Hi, is it possible for this to work on

http://www.goodluckbuy.com/images/ebay_gadgetinfinite_images/sku_93...

I have a few of these lying around...
- Rolf Blomgren > LTMNO February 24, 2014 at 9:59am
  
  You have to rewrite the code and use the SoftwareSerial Library because your card is based on ATMEL Mega328P that don't have hardware support for single wire inverted serial communication .
  
  Also you must check that the input/output is 3.3V for connection to the S.Port
Kent Kuhler February 23, 2014 at 9:12pm

I had this working within a couple of hours of getting my Teensy board. Thanks a ton.
Chris Onyando February 20, 2014 at 12:24pm

I'm thinking of connecting a Bluetooth board to the tx and RX pin on the ground. My aim is to create a telemetry bridge for tablets. With this work?
- John Hutchison > Chris Onyando February 21, 2014 at 2:27am
  
  I used this on my dht-u diy module and it works great. http://pages.ebay.com/link/?nav=item.view&id=150843209961
  It came with 2 harnesses, one with a serial port and another with separate wires for ttl, rs232, and power/ground. Was already configured.
  - Artem > John Hutchison February 21, 2014 at 10:00am
    
    the one you mentioned is 3.3v logic, the one from ready to fly quads is 5v. are you sure you used it with apm?
    - John Hutchison > Artem February 21, 2014 at 10:39am
      
      Yes sir, works fine on my Futaba T7CHP with FrSky DHT-U DIY 2.4GHZ telemetry Tx and FrSky FLD-02 Display. You are looking at the specs for the Bluetooth radio which is the tiny radio on the larger board. The larger board is the daughter-board with the big white DF13 plug on it that has a voltage regulator stepping down the 11v from the Tx battery, and also has the pinout for TTL, RS232, power and ground. The Bluetooth module is TTL 3.3v.
      - Artem > John Hutchison February 21, 2014 at 10:57am
        
        oh, I see you were talking about connecting it to your radio's telemetry port, I meant directly to APM/pixhawk, it is TTL 5v. sorry for misunderstanding!
- Artem > Chris Onyando February 20, 2014 at 12:28pm
  
  not only possible but this is how you do it :) http://witespyquad.gostorego.com/flight-controllers/serial-bluetoot...
Brano February 19, 2014 at 8:38am

Rolf, THANK YOU for this!!! ...I was looking for solution like this for quite some time.

One question, could minimOSD be used simultaneously with this?