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effevee / loraE32

A MicroPython class for the Ebyte E32 Series LoRa modules
GNU General Public License v3.0
35 stars 6 forks source link

Your Readme vs EBYTE datasheet #5

Open mgaman opened 2 years ago

mgaman commented 2 years ago

According to your Readme the Get Version command C3H C3H C3H returns a 4 byte reply. According to the E32-900T20D Users Manual page p14 section 7.3. there is an 8 byte reply. My experience shows a 4 byte reply. Am I missing something?

effevee commented 2 years ago

Sorry, I don't know which user manual you're looking at, but the one I linked in my readme clearly says a 4 byte return on command C3. The code also only reads 4 bytes, anything larger is flagged as an error.

mgaman commented 2 years ago

I got mine from https://www.ebyte.com/en/pdf-down.aspx?id=2520 and refers to the E32-900D20T I just downloaded the E32-433D20T manual and discovered, to my surprise, that it is not identical to the E32-900D20T manual. I had expected that apart from references to frequency all the rest of content would be identical. Not so. The 433 manual states that C3 returns a 4 byte response. The 900 manual mentions and 8 byte reply. The 900 manual also has typesetting errors e.g. mismatched lines in tables that are not present in the 433 manual.

I got into all this because my device marked as E32-900T20D return a model ID C3 32 10 14 i.e. 433Mhz

Such fun.

David Henry

On Tue, Jun 21, 2022 at 3:20 PM effevee @.***> wrote:

Sorry, I don't know which user manual you're looking at, but the one I linked in my readme clearly says a 4 byte return on command C3. The code also only reads 4 bytes, anything larger is flagged as an error.

— Reply to this email directly, view it on GitHub https://github.com/effevee/loraE32/issues/5#issuecomment-1161673829, or unsubscribe https://github.com/notifications/unsubscribe-auth/AA3KSTRXGG5QW5S5EEPLDATVQGXQDANCNFSM5ZLZWIGQ . You are receiving this because you authored the thread.Message ID: @.***>

effevee commented 2 years ago

I developped the code for E32-868T20D as this was the only ebyte lora module I had at the time ;-) Wasn't aware there were differences between the modules of the Ebyte E32 series. Happy hacking 8-)

varna9000 commented 1 year ago

It appears Ebyte have discontinued E32-868T20D model and replaced it with E32-900T20D, which has broader frequency range: 862MHz~931MHz