SX1280 | Continual "ERROR - Busy Timeout!"

[GangstaWangstaPranksta]

Device:

• NiceRF SX1280

  Code used:

• SX1280 example 3&4 with modified pins and buzzer removed

  Screenshots:

  

  Additional Info:

  The receiver LoRa module does not have NRESET hooked up and is defined as -1, however, this error is occurring with both modules. Pins DIO1, BUSY, VCC, GND, MISO, MOSI, SCK, and NSS are hooked up in both and are correctly defined in Settings.h. I have tried other examples with the same result. Is this a problem with the code, hardware, or wiring, and any tips to solve this?

[StuartsProjects]

The code is fine and has been well tested on the specified hardware for some years.

It looks like your setup is reading a constant high on the RFBUSY pin.

Can you provide a link to the actual SX1280 module you are using, the Arduino your using and the pin definitions you are using ?

As an asside I would not use a SX1280 without the NRESET pin, you can get away without it on SX127X modules but if its missing there can be reliability issues with SX128X and SX126X modules.

[GangstaWangstaPranksta]

I am using the NiceRF SX1280 with an Elegoo Arduino Uno. Below is a screenshot of the pin definitions from Settings.h. I'll add a connection to the NRESET pin when I get a chance, I just happened to miss it while soldering and went with it to see if I could do without it.

[StuartsProjects]

Elegoo Arduino Uno

That is a 5V logic Arduino I believe ?

You cannot use 5V logic Arduinos direct with the 3.3V Logic level LoRa devices. The LoRa modules can be damadged too.

[StuartsProjects]

Not a library issue. There are warning in the documentation about using LoRa devices on 5V Arduinos.