Apologies if the answer is posted somewhere I missed in my searching. I recently purchased the LoRaSerial kit, and am having issues getting them to work. I plugged one into a raspi 4B USB port, and the other into a raspi 3B+ port. Neither is being recognized as /dev/ttyUSB*. Raspi 4 is listing in /dev as /dev/ttyS0 (dialout), but I can’t connect or send messages using Minicom. Raspi3 us listing in /dev as /dev/ttyAMA0 (dialout). Neither show up in when I enter lsusb.
From the quick start guide, these should be plug and play for linux devices? I’m certain I’m getting enough power. These radios don’t show up when I plug them into my mac either. RSSI LEDs are fully lit green. I have googled and tried a ton of stuff, including looking into FTDI drivers. Thanks for any help.
The AMA0 and ttyS0 above are built-in serial ports on the Raspberry Pis, not USB devices:
/dev/ttyS0 (Pi 4) = onboard UART/dev/ttyAMA0 (Pi 3B+) = onboard UART
Have you tried swapping usb cables? Which drivers did you end up trying to install?
Hi TS-Russell, yes, I have tried different cables and USB ports (2.0 and 3.0) on the pi. The pi does recognize a USB drive when I plug that in. At first I tried a FTDI driver. Are these using the SAM 21 driver mentioned elsewhere? Thanks
1 Like
Hi TS-Russell, I got it working. I tried several USB cables and finally found a couple that allowed the two pi computers to recognize the device. Then I was able to properly configure minicom, and then finally trained the two radios to establish the link. I can see text when I type in one terminal window printed in the other. Thanks.
1 Like