Came across an Aliexpress board nicknamed the “EoRa Pi”.
This board pairs Ebyte’s E22-900mm22s with an ESP32-S3, and has BT5.0
Product Link
Just curious if this board would be supported, and if the Ebyte chip is the same as the SX1262. Spec sheets show the same specs and mentioned its based on the SX1262.
I too, stumbled across this board and was curious about it, but there’s not much info about it
For me, being able to get it from Taobao, it’s even cheaper than AliExpress
And is cheaper than the Heltec/Lilygo options
From what I can gather
It looks very similar to the Lilygo boards, though not sure which version it is based on, and there are some differences
Surprisingly, the firmware flasher does have this exact board in the drop-down menu, as EBYTE EoRa-S3
And I just found this
Seems like support was added with this Pull Request
The wiki does not seem to mention this board
Problem is… the Ebyte modules are simply not meshtastic compatible. Afik.
EDIT: Nope; That was wrong…
Some modules do expose the SX1262 directly. (but, in my defense, not all of them)
They use a small mcu core and a SX1262 to implement their own (e-byte proprietory) lora network/mesh protocol. You have no control over the SX1262, and you talk to the module via serial and a couple of control pins.
This product appears to be a E22 module on a dev-board with a esp32. It’s a nice unit, and the E22 is very, very low power indeed and can do GPIO wake on the ESP32. I use an E22 and a similar E222 unit in a private netork for my boat. But this is not for meshtastic use. Sorry.
Edit: to clarify. The E22 is a module in itself. It handles all the lora traffic, waking, relaying and acking as needed, and only wakes the ESP32 when it is directly or group addressed. It also handles ota encryption without the esp needing to be involved.
Hmm again there’s not much info out there but it seems like it is compatible, considering it exists on the firmware flasher?
there is this youtube video, though not in English, that seems to get Meshtastic running on it
[cant post the full link so just the watch code] watch?v=SUJKvc4_f5c
And there’s this for sale which claims to be using that board and claims to be Meshtastic ready
EDIT:
based on firmware/variants/CDEBYTE_EoRa-S3/variant.h and also the datasheet, it seems like in this case, it is indeed just a SX radio chip inside
Yep, It certainly is supported.
I didnt realise the E22 modules came in versions with the SX1262 exposed; I mistakenly assumed that all the E-Byte modules were self-contained and based on their own proprieaty protocols.
TL;DR:
My boat network has small boards with the E22-400T22 and E220-900T22 modules, which do not expose the lora chip directly and can only talk with other compatible E-Byte modules. As noted in my original reply they handle all the network send/recieve/relay by themselves, and have a serial interface+interrupt pin to talk to the host. The host (a SAMD21 on the boat) simply configures the module on startup and then sends/recieves via serial. Convenient, but not a real mesh.