Help with interfacing Arduino Uno with RAK811

I’m trying to figure out which version of which library by which developer I made that for.

There seems to be some big changes to the latest library on GitHub which will require me to rewrite my code.

Which library are you using?

From what I can tell from RAKwireless’ website, the RAK811 is no longer in production. Reference is made there to what looks to be just a chip.

Am having a similar issue with connecting RAK19001/RAK11310 with Arduino Uno R3 for inter-device serial communication. Would prefer to do this solderless as part of a proof-of-concept. The community’s advice would be welcomed.

One easy but expensive solution I see is to use an Rpi to act as a programmable USB hub. Have done that successfully to link more than one Arduino for serial comm between them. Should also work between RAK/Arduino.

You can use the RX1/TX1 lines of the RAK19001 Base Board to connect to the Arduino UNO.

BUT

You need a voltage-level translator for the signals. WisBlock UART’s RX/TX lines works only with 3.3V. The Arduino UNO is using 5V on its RX/TX lines. Without changing the voltage levels, you might destroy the RAK11310.

Yes. True. But I wanted to observe the dataflow between units as part of the development/debugging process. Used an RPi as a programmable USB Hub. This has worked out quite well and it also allows up to four devices to be interfaced.

Eventually, I’ll post the software and documentation on GitHub to replace an older version of the larger project. Could do that earlier if there is interest.