Eachine or JJRC H8 mini ?

will this work with the deviation firmware?

The H8 mini would be an amazing flier with a little Deviation.

Tone down the top yaw rate, and it's steep pitch will fight some hefty winds. It's got everything -- just needs a little polish.

Great indoor/outdoor flier!

And also this protocol is compatible with the BayangToys X6, X7, X9 and the new JJRC JJ850
I ordered a new X9 and will capture SPI traces when receive, in case nobody capture before me

I would also love to see the H8 Deviated. With a view to helping that process along, I have posted a capture of the bind process here .

I'll keep my transmitter wired-up in case more captures are needed at some point.

S.Giles wrote: I would also love to see the H8 Deviated. With a view to helping that process along, I have posted a capture of the bind process here .

I'll keep my transmitter wired-up in case more captures are needed at some point.

Please continue! Expect the H8 mini to be one of the very best nano indoor/outdoor fliers once Deviated.

It's awesomeness awaits.

Nothing complicated in the binding. Need captures for the channels, trims, and special functions.
- The data phase address and rf channels (4) are sent in the bind packet
- Last packet byte is checksum - just the sum of packet bytes
- First packet byte a4 for bind, a5 for data phase?

Don't want to monopolize the fun of implementation...who wants to jump in?

I can help in some days when receive the BayangToys X9.
I think this protocol will be very expected, since the Eachine/JJRC H8 mini, BayangToys X6, X7, X9, JJRC JJ850 and maybe more models, are on this protocol.

I have uploaded a few more captures in the same place and will add more shortly.

I'm trying to figure out the subtleties of the H8's special functions, and learning to speak fluent Chinglish in the process.

I also captured H8 mini SPI data,hope it could help.

www.mediafire.com/download/2p3n5zzrbdm55...ni-SPI-LogicData.zip

www.mediafire.com/download/vxue8tpbtyvuwm3/H8mini-SPI-CSV.zip

dc59 wrote: I also captured H8 mini SPI data,hope it could help.

Yes, that's helpful thanks. The Headless Button capture seems to have two buttons in it - please clarify how you made the capture? The first bit change is little over 4.5 seconds after the start of the capture, with an additional bit asserted at about 7 seconds.

What should be the name of this protocol?

I vote for "BayangToys" because is the older model using this protocol

Durete wrote: I vote for "BayangToys" because is the older model using this protocol

Maybe 'BayangT' then

hexfet wrote:

dc59 wrote: I also captured H8 mini SPI data,hope it could help.

Yes, that's helpful thanks. The Headless Button capture seems to have two buttons in it - please clarify how you made the capture? The first bit change is little over 4.5 seconds after the start of the capture, with an additional bit asserted at about 7 seconds.

Thanks Hexfet.
Maybe I pressed other button when I captured headless function, I will capture headless signal again and will upload it once I finish job.

hexfet wrote:

dc59 wrote: I also captured H8 mini SPI data,hope it could help.

Yes, that's helpful thanks. The Headless Button capture seems to have two buttons in it - please clarify how you made the capture? The first bit change is little over 4.5 seconds after the start of the capture, with an additional bit asserted at about 7 seconds.

Hi hexfet,

I captured headless function again and uploaded,
www.mediafire.com/download/1f8qtkegesqdmnd/H8mini-Headless.zip

after bind to H8 mini, I applied a little throttle and pressed headless button then stop capture.

dc59 wrote: after bind to H8 mini, I applied a little throttle and pressed headless button then stop capture.

I do see just one button in this capture. Is there possibly a second function that is enabled by holding the button down for a long time, like a "long press"?

I've uploaded a Test Build for the 7e. Let me know if other builds are needed. Code is pushed to my repo.

I'll post a protocol description later - don't have my notes at the moment. Jumped straight to a random txid - if this doesn't bind we'll need to back up and try to replicate a tx that's been captured.

Headless control is on channel 9.

Wow!
Good job Hexfet I will test as soon I receive my new Bayang X9 (probably this week).
I only have an old Bayang X9 working on different protocol.

Short story...
Bayang Toys release the X6, X7 and X9.
After some months, they silently change the protocol in all models and added Headless and RTF. Fortunately the fantastic flying characteristics didn't change, but the old versions, don't bind with the new versions.
Some time later, were announced the Eachine/JJRC H8 using the same new protocol, and later JJRC release the JJ850.
Probably I will capture SPI on my old version and in case they are very similar (you know I'm not a programmer ), I will try to practice implementing the protocol as an option...

hexfet wrote:

dc59 wrote: after bind to H8 mini, I applied a little throttle and pressed headless button then stop capture.

I do see just one button in this capture. Is there possibly a second function that is enabled by holding the button down for a long time, like a "long press"?

Yes, you are right ! long press headless button is "RETURN HOME" function , I captured this function at new file as below,please check it out!
www.mediafire.com/download/zaq4rzet6l9zb...8mini-ReturnHome.zip

I installed test build , but it could not bind to quad!
Normal procedure:
1, power on quad, quad LED slow blink.
2, power on stock TX one beep , quad LED fast blink.
3, TX second beep, quad LED on solid.

This build, quad LED always slow blink, I tried to set different ID '12345678' / '111111' / '11' and no ID,
it's all the same.

Thanks a lot!

Durete wrote: I vote for "BayangToys" because is the older model using this protocol

Will this protocol work with other quads?

Mine doesn't say Bayang anywhere. But they're all "H8 mini". That's the prevailing name used in the forum. Suggest that's a better name to use. Unless the Eachine H8 mini is a different bird.

Edit: Sorry, I forgot you said there were other quads that use the same protocol. I guess I was thinking if there were they must be Deviated already. I guess there are a few older models that haven't been assimilated yet ...