My setup

[blueskytod]

Hi ,
I use the farm data relay system with esp now for some time and it works great.
I have some Lora Module Ra-02 SX1278 433MHZ with some wemos mini esp8266 , but that set-up didn't work, any one tried that ? Or I have to try with esp32 ?
Have a great day

[timmbogner]

Hiya,
I've got a couple of those Ra-02 modules and have tested the system on them successfully. The following is a setup that I think should work. I haven't tested it in a while.

One of my next tasks is actually to use these Ra-02s to test the new timekeeping functionality with different MCU architectures, including Wemos8266. Let me know if these configs don't work and I will jump in and test with you.

#define RADIOLIB_MODULE SX1278  // ESP8266 SX1278
#define LORA_SS    15
#define LORA_RST   4
#define LORA_DIO   5
#define LORA_BUSY RADIOLIB_NC

[timmbogner]

@blueskytod You also need to change the frequency parameter to "433.0". You can do this either in the global file or in the config file. I have tested this configuration successfully: (an example of setting it in the config file)

#define RADIOLIB_MODULE SX1278  // ESP8266 SX1278
#define LORA_SS    15
#define LORA_RST   4
#define LORA_DIO   5
#define LORA_BUSY  RADIOLIB_NC
#define LORA_FREQUENCY 433.0

[blueskytod]

@timmbogner i always have a 'radiolib error code2 'in serial monitor , can you show me the others connection for the SPI interface on your esp8266 (Sclk,mosi,miso ...)

[timmbogner]

Sure thing,
This configuration uses the standard SPI pins found here. Beware of the difference between, for example, "D5" and "GPIO5". In configs we are always using the "GPIO" designation for a pin, which will not match the pin number printed on the Wemos board. I will edit this post shortly with a photo of my working setup for clarity.

[timmbogner]

One more thing I keep forgetting: The reset pin is optional.

[blueskytod]

Thank you very much , it was very helpful ,
just a last piece of advice about an example of flow (in node red )to control a controller node ( simple irrigation system with on swith )
again thank you

[timmbogner]

Glad you got it working!

That's a great suggestion, thanks! As I was doing this, I added "Readmes for example sketches" to my to-do list. Those will be a great place to explain things and give Node-RED examples, especially the more intricate stuff like controllers.