WLToys V912/V915/? protocols

I've captured this data from the V912 TX the Top and Bottom buttons. I broke out the usage and I'd like to see if I got it right... Is there a preferred place to post these 2MB files?

0x40 sent when the bottom button is pressed, and 0x80 is sent when the top button is pressed.

I am checking all the other buttons now to see if they do anything.

Sure, I'll load that up in the morning.

I did not find any other bits being changed by any other buttons. The only other button that does anything resulting in a change is the left shoulder button, which sets the 0x80 and it stays there, apparently it's for when you want the camera to take single shots every couple of seconds. We can duplicate that with mixers, I guess. I've attached the text file - not as pretty as yours!

This seems to work part way.

Channel 6 is working great. I tried it with both the camera and the hook and both work as expected, just like the top button.

Channel 5 isn't working. I used the LV trim button and set them up exactly the same way. I can see both switches in the monitor, and both are active, but only Channel 6 gets a response from the V912. I double checked all my settings and exchanged the trims, but I don't see any issues.

[channel5]
template=simple
[mixer]
src=Virt2
dest=Ch5
curvetype=zero/max
points=0

[channel6]
template=simple
[mixer]
src=Virt3
dest=Ch6
curvetype=zero/max
points=0


[virtchan2]
template=complex
[mixer]
src=AIL
dest=Virt2
scalar=-100
curvetype=fixed

[virtchan3]
template=complex
[mixer]
src=AIL
dest=Virt3
scalar=-100
curvetype=fixed


[trim1]
src=Virt2
pos=TRIMLV-
step=193
value=-100,0,0
[trim5]
src=Virt3
pos=TRIMLV+
step=193
value=-100,0,0

Yay! It works! Set the up to Channel 6 and down to Channel 7 and it seems to work great! I can make the basket go up and down and up and down...

I noticed that my transmitter has to be very close (<12") to the V912 to keep from dropping the signal. That might not be an issue with the software, but the V912 TX works fine away from the bird. I increased the power from 30mw to 100mw and I could go back about 8 feet before the signal lost.

Additionally, there seems to be a control issue like I saw in earlier testing. The servos don't respond immediately and sometimes not at all, even when the transmitter is close to the Heli. If I keep moving the collective the bind light starts to blink. And if I leave the TX and V912 both on for a little while (~30 seconds when I noticed it) the bind light blinks. It recovers a short time later.

I used the latest nightly to set up (deviation-devo7e-v4.0.1-e1a3b14) and installed your DFU/protocols over it. Is there some change in the protocol that might affect the power or sync?

I have to do some real work now so when I have a chance, I'll go back to the latest nightly and maybe rule that out.

It is an A7105D03, it should have the PA. I have used it with my Proto-x (Hubsan - telemetry is working) and V911. The V911 worked fine with channels=4, when I tested last week, but if I changed it to 8 channels I got the same stutters and stops. I'll try that again right now.

I haven't ever had a range issue because I have a limited flying area, and it's fine for the little guys. I'll let you know what I find.

My V911 flies great out to about 40 feet (the furthest I can fly it in the house!). And that was set at 10mw and 30mw, set at channels=4. No stutters or stops.

When I set channels=8 the collective servos seemed to be hesitant, but not to the extent of the V912.

The V912 isn't flyable at 4 channels either. So V911 4-channels OK, V911 8-channels poor, V912 4-channels bad, V912 8-channels bad. All with WLToys ext.=Off, same ini file except the name and fixedID.

What captures do you need? From the V912 TX or from Devo 7e?

Here's the SPI file from a capture of the V912 just binding and sitting for 10 seconds, no movements, no buttons pushed. If this is a format you can use, it is just an export from Salea.

These are the full captures. I can get more tomorrow if you need more.

Bind no moves.logicdata
Top Button Several Times.logicdata
Bottom Button Several Times.logicdata
Hook Up Then Down.logicdata