RAK13302/RAK4631

WisBlock
1

Please include the following information, in order for us to help you as effectively as possible.

  • What product do you wish to discuss? RAK13302

  • What firmware are you using? Arduino

Hi,

I was just wondering what the limitation is regarding the RAK13302 being used with RAK4631 instead of the RAK3401?

It looked like both modules had an identical pinout on the 40pin header but on review the datasheet for the RAK3401 is using the schematic for the RAK4630.

This is for a dual radio project and the additional range would be beneficial if achievable.

Thanks

2

The difference between the RAK4631 and RAK3401 is that the RAK4631 has an LoRa transceiver inside, while the RAK3401 does not have this transceiver.
Theoretically you can use the RAK4631 with the RAK13302, but I am not aware of any drivers that would support both LoRa transceivers.
If you use it with Meshtastic or meshCore firmware, depending on the firmware version you flash on the RAK4631, either the transceiver on the RAK13302 or the internal transceiver will be used.
As the other one transceiver would be uninitizialized and not put into sleep mode, the power consumption will be higher.

3

Thanks Bernd, I’ll buy one and give it a go.

I’m intending to use Radiolib so that should allow me to instantiate each radio individually.

4

RadioLib should work, you just need to get the pin mapping and SPI ports right.