Telemetry Protocols

[handsomejackuk]

If you want to send the incoming telemetry data of djt/dht to bluetooth module you have to
do a part of the telemetry mod:

• mod the djt/dht to output ttl level (not recommended) or
• convert the rs232 level signals of djt/dht to ttl via a converter in a way like this

The connections that normally go to MISO and MOSI on the mainboard then have to be connected
to your bluetooth module.

Edit: the data you(your quad) send(s) into your frsky receiver must be frsky compatible.

Klaus

the miso and mosi connections required then are the same connnections used on the 9xr to update the firmware, i see cleanflight hydra is using a similar setup on his youtube connecting bluetooth to the firmware update port at 3:57 below

https://www.youtube.com/watch?v=dahGlc3Tf40

[KAL]

Exactly,

simply said: MOSI and MISO are the serial ports of the CPU
where it can receive updates or even telemetry.

But if you don't want to do the whole telemetry mod you mustn't connect
to the mainbord 'cause this connections are also used for some switches.
Just to the bluetooth module.

Klaus

[cxlabs]

Hi Mike,
i borrowed your code and finally succeeded to TX via main serial AND bt serial!
Thank you.
I had a problem in task creation (wrongly done before CoInitOS())
Now it works and i can start instructing APM via MAVLINK protocol...
nice day