Comments: nRF52840 Development with Arduino and CircuitPython


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  • I followed the step by step, and I cannot view the nRF52849 with the nRF connect. I've tried loading under both the Pro mini board and the Adafruit Bluefruit. One time, after about 7 resets while using the bluefruit as the board designation, it showed up in the nRF connect. I connected, it froze, I restarted connect, and it was gone. I haven't seen it since, but I know that the module isn't broken at least. I have mostly tried to connect with the peripheral blinky_ota example sketch (arduino), but I have tried others as well with no luck. I am at a loss as to why it will not be found. Any suggestions?

    • For anyone running into that problem, the corrective steps I took that eventually got things working were re-installing the bootloader stuff -> and then I used the sparkfun demo script below instead of the example blinky sketch that came with the software and it started working.

  • Not able to compile the Bluetooth button code in Arduino IDE. Always get the message "fatal error: Arduino.h: No such file or directory". How to resolve this ?

  • I loaded CircuitPython and am able to access & execute at the REPL. I see the directory CIRCUITPY mounted on my filesystem. When I drag either of the samples, as, nothing happens. If I do a reset, is gone. I tried erase_filesystem() and got the same behavior. Any ideas? Thx

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