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Published 20 hours ago • verified publisher icon pascallanger

Support for RH807 mini drone

Open FabianInostroza opened this issue 2 years ago • 5 comments

Please add support for the protocol used by this drone. Looks similar to JJRC H36. It uses the RF2518 chip on the TX and RF25155 on the RX. I've tried different protocols used on similar chips with no luck. See https://github.com/pascallanger/DIY-Multiprotocol-TX-Module/discussions/706 for some photos.

Regards.

FabianInostroza avatar Jul 20 '22 03:07 FabianInostroza

I've received the mini drone but I fear it's the wrong one. I've used the link you gave me but mine has a XNS1042 chip which has a XN297 built-in. This has nothing to do with the RF25xx that you have in yours. I'm sorry but I could look at implementing this drone but that won't help you...

pascallanger avatar Aug 01 '22 10:08 pascallanger

Where are you located? I'm in France but I'll travel to the US in September. May be there is an option to ship the remote/drone and send it back.

pascallanger avatar Aug 01 '22 16:08 pascallanger

Hi, that's unfortunate. I don't know if the protocol in that drone is implemented yet, if it isn't and you have some spare time to reverse engineer it and implement it may help other people, you decide. I live in Chile, I doubt shipping to/from here would make sense.

Anyway, thanks for this project.

FabianInostroza avatar Aug 02 '22 01:08 FabianInostroza

I've already started to look at the protocol.

Bind

RF channel: 20 Send: approx 16150µs RF settings: 1Mb, Scrambled Address: D2 B5 99 B3 4A Payload size: 10

4C 4B 3A 6F 00 00 D2 00 AA AA
F0 F1 ?? ?? ?? ?? A0 ?? EOF EOF

F0, F1 could be related to the frequencies used in normal mode A0: first byte of the normal address? EOF: End of frame? same as normal mode

Normal

RF channels: 73=0x49, 75=0x4B=F1?, 76=0x4C=F0? Hop: approx 8025µs RF settings: 1Mb, Scrambled Address: D2 B5 99 B3 4A ?? Where is this address coming from ?? Payload size: 12

00 00 FF 00 20 20 20 00 40 00 AA AA
?? ?? Flag change? THR AIL ELE RUD ?? Flags ?? EOF EOF

EOF: End of frame? same as bind mode Flags: 40=beg, 80=med, C0=exp Flag change: every time you press a button the value change for a few packets then go back to FF

I could implement the protocol like this for now and see the flags later.

pascallanger avatar Aug 02 '22 13:08 pascallanger

is there an update to r807 binding? and if not is theres a manual brute force way to bind to rh807 drone to multiprotocol module?

bla671 avatar Jul 13 '23 01:07 bla671