Hi,
I've been trying to get openLRS to work on Orange 433MHz TX RX but so far failed. I was checking the transmitter output on an oscilloscope (In my case this is between the Transmitter and the TX module) and (cutting a long story short) needed to change the delay settings on the oscilloscope. This seemed to make the throttle move to another channel. This got me thinking about PPM signal timing, and whether there is a timing issue between the transmitter and the TX?
Any ideas? Cheers, Camerart.
PPM signals
Re: PPM signals
What firmware? What settings?
OpenLRS should accept the defaults just fine.
PPM signals are difficult to view on some scopes, and often "jumps" between different sync points making it a bit misleading.
OpenLRS should accept the defaults just fine.
PPM signals are difficult to view on some scopes, and often "jumps" between different sync points making it a bit misleading.
-
MikeB
- 9x Developer
- Posts: 17993
- Joined: Tue Dec 27, 2011 1:24 pm
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- Location: Poole, Dorset, UK
Re: PPM signals
If your 'scope has a pulse width trigger use pulse>3.0mS as the trigger.
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: PPM signals
Thanks to all that replied.
I'm using an old oscilloscope, so I imagine it's not synching properly, as suggested. This only happens when I 'zoom in' to see clearly one wave. I'll just have to put up with it.
A few minutes ago, I got the Transmitter, TX module, and RX to work as it should, so all's well.
Cheers, Camerart.
I'm using an old oscilloscope, so I imagine it's not synching properly, as suggested. This only happens when I 'zoom in' to see clearly one wave. I'll just have to put up with it.
A few minutes ago, I got the Transmitter, TX module, and RX to work as it should, so all's well.
Cheers, Camerart.