Two Seeeduino XIAO BLE Sense

[bodychmarcin]

Hi. Is it possible to connect two modules together? one as a transmitter and the other as a receiver installed in TARANIS which sends the received data to the PPM pin?

[ysoldak]

Not at the moment, not for two XIAO BLE Sense boards. Some however try to use ESP32 C3 board on the radio side, and have issues unfortunately, see #48 and #52

I'll try and implement receiver on XIAO BLE board, eventually. No time frame though.

[bodychmarcin]

Lack of time is very understandable for me :-) generally it doesn't have to be the same board, it can be anything else like esp32. Tracker 2.2 as a receiver was mentioned in some threads, but as a BLE receiver for PPM it is too advanced and I had a problem with it. I used ESP32 to connect to your firmware with the Xiao board, the connection was not broken even for a moment, and it was running for over an hour. The problem is that I don't understand and I don't know the uuid structure and data, and therefore I don't know "golang". That's why I started this thread. Best regards, my friend.

[bodychmarcin]

I wrote a program based on opentxbt that connects to seeduino, it works fine, nothing interrupts the connection, I receive data and send ppm. Question: I'm curious, is it possible to implement client subscription in seeduino?

ESP32 BT Client, GPIO short to Ground -> sends bool (true or false) XIAO BT server, receives data bool, if true -> Reset orientation

It is more convenient to do this with a monostable rc switch than to take your hand off to tap twice or look for a button soldered to the XIAO GPIO.

[RDM3DGit]

I wrote a program based on opentxbt that connects to seeduino, it works fine, nothing interrupts the connection, I receive data and send ppm. Question: I'm curious, is it possible to implement client subscription in seeduino?

ESP32 BT Client, GPIO short to Ground -> sends bool (true or false) XIAO BT server, receives data bool, if true -> Reset orientation

It is more convenient to do this with a monostable rc switch than to take your hand off to tap twice or look for a button soldered to the XIAO GPIO.

Can you share link to your code?

[bodychmarcin]

Can you share link to your code?

I think so, but I would like to wait until ysoldak could create an additional characteristic, e.g. fff7, in which the client can save bool data, if xiao receives true, it will reset the orientation.

[ysoldak]

Yes, good idea, @bodychmarcin! Definitely we can have such extension to BT, add a characteristic. This will not be a strict PARA anymore, no problem though, since backwards compatible still. Any known implementation/characteristic number for reset orientation? So we don't invent a wheel but just follow them?

[bodychmarcin]

Tak, dobry pomysł,@bodychmarcin! Zdecydowanie możemy mieć takie rozszerzenie do BT, dodać cechę. Nie będzie to już ścisła PARA, nie ma jednak problemu, ponieważ nadal jest kompatybilny wstecz. Jakiś znany numer implementacji/charakterystyki dla orientacji resetowania? Czyli nie wymyślamy koła, tylko po prostu za nimi podążamy?

I don't know the language, so I have to ask you about it. I think you can add another number fff7. What do you think about it? unless it's a feature outside the Para structure. I have ESP32C3 and the monostable switch is physically disconnected from the device and connected to the ESP32 GPIO. if gpio is shorted, I would like it to send a bool to the xiao feature and reset it. I don't want to take my hands off the radio :-)

[bodychmarcin]

Generally, I leave you free to make sure it is compatible with those who use PARA. I will adapt.

I don't know if we understand each other, if the characteristic, e.g. fff7, receives the value true, then it will call o.Reset()

[ysoldak]

Yes, I think I understood you idea, adding one more characteristic shall be no problem.

So, the BT client sets a characteristic value to "true"; HT notices the value and resets its orientation + resets the characteristic value to default "false".

Shall work, need to test, obviously.

[bodychmarcin]

I'll test it if you make a branch related to it :)

[bodychmarcin]

I already managed to create a new service with new characteristics to handle the reset so as not to change PARA. anyway, thanks for your willingness