JJRC H20 Hex Quad

That makes sense.

BTW, I figured out why I could not find the original cables for the Saleaelogic. I used them on my tilted quad for connecting a KK2.1. I should be using iNav with nRF24L01 and then recover the cables. Anyway 1 of the 4 ESCs was bad. I am still waiting for the replacement. That would be another project waiting in line.

Thanks.

H20H capture:

www.dropbox.com/sh/egdjv05yja6gzmy/AABSM...RSw2sQdKVEX-Ooa?dl=0

The stock TX does quite a bit. It beeps or flashes on everything except regular throttle/rudder/cyclic.

My H20H does not have a camera but the TX is capable of controlling one.

Please check and advise if they are OK before I unsolder those wires, 3-wire SPI is a bit odd.

Thanks

BTW, txz is tar.xz

goebish wrote: Thanks for testing !

That's a good question ....
It's even worse with some machines like the CX10, they change the protocol with every revision of the PCB

We probably have yet another one for H20H.

I also received a JJRC H36 (= Eachine E010) yesterday. It uses a battery with bigger plug. H20H battery has a smaller plug with reversed polarity. Looks like JJRC uses a different board designer for each model.

goebish wrote: Thanks for the captures, at first glance it's pretty similar to the H8-3D / H20 protocol but with a few differences, shouldn't be very difficult to add it, it's on my list ... and you can remove the wires.

Yes it's what I observed with the H20-mini.... It's binding the H8-3D, but no controls ...

Sorry I only have one H20H. Can't help.

goebish wrote: I think the H20 mini is using yet another protocol, not the same than H20H.

Do you have an H20H as well SeByDocKy ? TX id / channels is not the same than for H8-3D/H20, I need captures from more than 1 TX ...

No I don't have the H20H .... I will try to capture data asap (when I will return from my buss trip)

Can we post the request for capture somewhere more open?

I have, no responses so far.

It is strange that nobody have a H20H are able to capture.

I got my H20H today, but I am new to capturing. Ordered this now:
www.banggood.com/LHT00SU1-Virtual-Oscill...5.html?rmmds=myorder

....but backorder. So it won't be here in a couple of weeks.

The altitude hold works pretty well for such a small device. The controller is of the "Phantom type" with spring loaded throttle that defaults to 50%. A click on the throttle arms the H20H and a quick throttle-up launch the H20H automatically to around 150 cm altitude. Smacking it into the ceiling if you start from a table.

Left front button is toggle between beginner, intermediate and expert mode. Right button is auto flip.

Eirikso,

This cheap one would work:

www.ebay.ca/itm/24MHz-8-Channel-USB-Logi...6:g:qX4AAOSwYIxX3WQW

I could not shut down the H20H when it crashed into my curtain (not in a upright position). It looks like clicking and lowering the throttle stick would not turn off the motors. It just hang onto the curtain with motors running indefinitely until I turned off the stock TX. That is the one of the things I don't like, i.e. no emergency shut down.

Motors still run for a few seconds after turning off TX. It could be deadly on a bigger bird. Nice to have that emergency shut down.

wasp09 wrote: Eirikso,

This cheap one would work:

www.ebay.ca/itm/24MHz-8-Channel-USB-Logi...6:g:qX4AAOSwYIxX3WQW

I could not shut down the H20H when it crashed into my curtain (not in a upright position). It looks like clicking and lowering the throttle stick would not turn off the motors. It just hang onto the curtain with motors running indefinitely until I turned off the stock TX. That is the one of the things I don't like, i.e. no emergency shut down.

Thank you. I have ordered one of those now.