WLH-08 & JJRC H13C protocol

Thanks Hexfet
Just returned home from holidays and didn't have too much time to test yet
I reversed the driven trim for packet 4 as you suggested, and now the erratic behaviour is to the right side

Anyone can confirm this behaviour with latest code?

Anyway, I will capture my SPI traces ASAP.

Sounds like the rudder is not as receptive to the driven trim Try reducing the scale (and may need to re-reverse the direction). Something likeor divide down more if necessary. If it gets so small it doesn't make a difference I'll just take it out.

I got same result as Durete with lastest combo build on my x600.

hexfet wrote: Sounds like the rudder is not as receptive to the driven trim Try reducing the scale (and may need to re-reverse the direction). Something like

packet[4] = (0x7f - CHAN2TRIM(packet[1])) >> 1;

or divide down more if necessary. If it gets so small it doesn't make a difference I'll just take it out.

Yep, I agree. The rudder channel is not receptive to driven trim.
Just returned home from my maiden flight using a custom build with only driven trim at pitch and roll channels. A blast! The rates are great now, and IMO since I think this is an outdoor quadcopter, I didn't miss to much an increase at rudder channel. Of course should be better a little bit, but not to much.
I will try to build reducing a little bit the scale hoping to find a good value.
(Maiden flight uploading to YouTube )