How to change spreading factor and bandwidth for ExpLoRaBLE

Wireless & IoT LoRa (Long Range)
1

I’ve used the example sketch LoRaWAN_node_ABP_method.ino with a Sparkfun ExpLoRaBLE to create a LoRa node. I’ve registered this device with TTN and see data being uploaded through my gateway. In the TTN console it looks like my board is using a spreading factor of 7 and bandwidth of 125khz.

settings": {

“data_rate”: {

“lora”: {

“bandwidth”: 125000,

“spreading_factor”: 7,

“coding_rate”: “4/5”

}

},

“frequency”: “904500000”,

“timestamp”: 3415167747

},

I’d like to see if a SF of 12 and bandwidth of 500khz increases transmission range.

Does anyone know how to configure those parameters?

2

See here (~line 65) https://github.com/jgromes/RadioLib/blo … ttings.ino

3

Thanks for the reply, Russell. I’m unclear on how to use this RadioLib example. Does my sketch need to include this code and run through that at setup() or do I run the example sketch once to update the radio settings and then re-upload my TTN sketch I’ve already been using?

Thanks.