Need help with brand new Pro RF - LoRa, 915MHz (SAMD21)

Wireless & IoT LoRa (Long Range)
1

Hi everyone,

I just got brad new Pro RF - LoRa, 915MHz (SAMD21). Connected it, Windows 10 driver loaded just as expected, uploaded my very first example sketch and after the board rebooted it no longer appears as a valid COM port and from what I can tell by looking at the status LEDs - it isn’t running the example code either (the TX should blink once a minute but it doesn’t)

It looks to me that my SAMD21 board is bricked but where do I go from here? The USB device error is “A request for the USB device descriptor failed.” Did the USB-to-serial just die?

download/file.php?mode=view&id=6215&sid … a108ca5a1b

Thank you

~B

SAMD21.png

2

Answered my own question: the example which comes with Arduino IDE is the cause.

One must compile and run another example: Sparkfun_SAMD21_Pro_RF_Arduino_Examples/ttn_abp_node_hello_world/ttn_abp_node_hello_world.ino from SparkFun’s GitHub

<LINK_TEXT text="https://github.com/sparkfun/Sparkfun_SA … world.ino
">Sparkfun_SAMD21_Pro_RF_Arduino_Examples/ttn_abp_node_hello_world/ttn_abp_node_hello_world.ino at master · sparkfun/Sparkfun_SAMD21_Pro_RF_Arduino_Examples · GitHub
</LINK_TEXT>

~B