IOBoard Let's make it better... We need testers...
Awhile ago we made first translating program for IOBoard and since that people have been using it as it was and/or modifying its open software. Now that we have more and more devices supporting FrSky telemetry, converting becomes more fun.
So let's make it. Current roadmap for IOBoard is:
- Have full support for MAVLink/FrSky conversion
- LED driver with configurable patterns
- OpenTX, er9X support
- TLD-02 display support
- Updated Configurator
Currently tested features on Taranis radio:
Heading, Temperature 1, Temperature 2 (shows satellites/fix type), Armed/Disarmed and Throttle values,
Lat/Lon, Altitude, Voltage, Cell volt (avg), Speed
jD-IOBoard can be found from jDrones store
Latest MAVLink/FrSky software is IOBoard_FrSkyMAVLink.v03a
software can also be found from arducodes repository at google code
Let us know how it works and if you have ideas, post it on..

Comments
This looks really awesome but is there any way to use this with something like an Arduino Nano or UNO?
Yes they are, just go to look our repository at github.com/jdrones
hi, i have a 9x with working telemetry mod and newest opentx mavlink software. now i bought the IOboard v1.1 with new 05a firmware uploaded. i have connected everything as shown. when iswitch on everythig no telemetry data is displayed on 9x!!! any help would be greatly appreciated
Thank you kindly, I found another option as well shortly after asking that looks like it doesn't require using uart2 but rather uart0 and making changes to sr0 in advanced parameters with mission planner.
Havet a look here http://vizual54.github.io/APM-Mavlink-to-FrSky/
David, it can work with the X8R Smart Port if you use the FrSky Smart Port vario in-between (connect to the data in port).
Can anybody point me in the right direction of getting this working without a radio modem? I'd like to be able to use this without the modem/ground station going. (Setup: UART0-Pro-Mini-Vario-X8R)
Hi Jani, thanks for your answer. An option for fixed cell count would be great! I do not need it calculated automatically, for I don't use different batteries with the same machine.
I would appreciate to test new solutions with my setup and give feedback.
Markus
@Markus, cell count can sometimes be wrong especially is your battery is really full. Due the limitations of FrSky telemetry protocol, cell count and cell voltage is manually counted and guessed "best way" as possible. As IOBoard get it's voltage value from flight controller it has to divide voltage and from voltage try to figure how many cells you have. Most of cases calculation is correct.
Maybe we should add option in config parameters that you can use either automatic or fixed cell count? What you think?
In anycase it's the total voltage that counts as there are no possibilities to get exact cell voltage from battery. I will check if we can find any better solution for voltage calculations. Would be important to get feedback of your measured battery values and reported cell values.
@brian, did you have GPS lock on flight controller while you tested??
Hi, I am wondering why my radio shows cell voltage for 4 cells although my battery is only a 3 cell lipo. See photo below. My Setup: er9x, TelemetrEZ, D8R-XP, IOBoard. The total voltage is correct, as the second photo shows, only the cell voltage is wrong because "the system" (which part of it?) thinks that I use a 4 cell lipo.
All the best, Markus
I tested this Hex file today to see how it faired in comparison, by Nils Hogberg.
Interesting result was that FM (T1) display sort of worked but wrong order. Sat info and GPS Lat Lon and Brg worked well. No voltage or current reading though...
http://vizual54.github.io/APM-Mavlink-to-FrSky/
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