I am trying to feed hitec telemetry into the Horus using a Teensy 3.1 and this code here http://www.rcgroups.com/forums/showthread.php?t=2245978 to emulate SPORT telemetry. My question is around the physical connection to the module port on the Horus.
Looking here https://github.com/opentx/opentx/wiki/T ... erial-port
it looks like pin 5 on the module is SPORT? Should I be feeding into this pin or maybe pin 2 which is labelled as SBUS input.
Do I need a level inverter?
My code is here http://www.rcgroups.com/forums/showpost ... tcount=523
Just looking for some confirmation on which module pin. I tried both 5 and 2 and neither would have the Horus be able to discover the sensor telemetry being fed in from the Teensy 3.1. Tried with external module configured to PPM and XJT/D16
thanks,
Brendin
Hitec Telemetry on Horus:module pins and SPORT info
- MikeB
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Re: Hitec Telemetry on Horus:module pins and SPORT info
SBUS and SPort are different things, the telemetry is SPort, and the input (pin 5) is expecting INVERTED serial data.
Mike.
Mike.
erskyTx/er9x developer
The difficult we do immediately,
The impossible takes a little longer!
The difficult we do immediately,
The impossible takes a little longer!
Re: Hitec Telemetry on Horus:module pins and SPORT info
Thanks. Is the inverted serial data also what the receivers (X8R) would be expecting on the SPORT input? Or is it the case that pin 5 is not an SPORT pin but rather just an input that takes inverted serial data?MikeB wrote:SBUS and SPort are different things, the telemetry is SPort, and the input (pin 5) is expecting INVERTED serial data.
Mike.
thanks,
Brendin
- MikeB
- 9x Developer
- Posts: 17990
- Joined: Tue Dec 27, 2011 1:24 pm
- Country: -
- Location: Poole, Dorset, UK
Re: Hitec Telemetry on Horus:module pins and SPORT info
Yes the SPort connection is always inverted serial. Pin 5 on the Horus is a full SPort connection, bi-directional, inverted serial.
Mike.
Mike.
erskyTx/er9x developer
The difficult we do immediately,
The impossible takes a little longer!
The difficult we do immediately,
The impossible takes a little longer!
Re: Hitec Telemetry on Horus:module pins and SPORT info
Thanks. So the Sport connection on the Horus should work the same as an Sport connection on an rx such as X8R. That means it should be working. thanks for confirming the pin. I'll continue debugging.MikeB wrote:Yes the SPort connection is always inverted serial. Pin 5 on the Horus is a full SPort connection, bi-directional, inverted serial.
Mike.
Brendin
Re: Hitec Telemetry on Horus:module pins and SPORT info
I got it working. I needed to enable #define POLLING_ENABLED in the frsky telemetry code.xnaron wrote:Thanks. So the Sport connection on the Horus should work the same as an Sport connection on an rx such as X8R. That means it should be working. thanks for confirming the pin. I'll continue debugging.MikeB wrote:Yes the SPort connection is always inverted serial. Pin 5 on the Horus is a full SPort connection, bi-directional, inverted serial.
Mike.
Brendin