esp8266 WeMos D1 mini and E220-900T30D: frequencies problem and info

[vilin]

Hi Renzo,

First of all, thanks a lot for the library you created, much appreciated!

Finally I got working my E220-900T30D modules with WeMos D1 mini board, but some things are not so clear yet:
1. I try to configure it to use 868 MHz by adding #define FREQUENCY_868, but when I read configuration – it shows 433MHz. Please, can you provide a snippet of code that will turn 868 MHz frequency ON. I’ve tried setting channel to 18 (assuming formula 850+CHAN*1M), but no luck, looks like it uses 428 MHz instead, because I just stop receiving data.
2. Should I connect M0 and M1 and disconnect AUX for saving configuration, or I can use same wiring as for “normal operation”?
3. Configuration should be saved just once or every time on microcontroller boot?

Thanks!

[Renzo Mischianti]

Hi Vilin
you must put #define FREQUENCY_868 before the include of the library. If It does not work, add directly to the statesNaming.h file.
In my library, I allow connecting
Rx, Tx or Rx, Tx, AUX or Rx, Tx, AUX, M0, M1
AUX is quite important for performance (without AUX, I add the maximum delay to be sure the operation was complete).
You can save the configuration permanently or only for the session.

You can find more information here
Ebyte LoRa E220 LLCC68 device for Arduino, esp32 or esp8266: library – 2

Ebyte LoRa E220 LLCC68 device for Arduino, esp32 or esp8266: configuration – 3

Bye Renzo

[Author]

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