Comments: nRF52840 Development with Arduino and CircuitPython

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  • I wanted to know which programmer and which debug level to use for programming nrf52 with arduino.Currently I am using bootloader dfu for nrf52 so when i upload it loads the firmware everytime and then the program as a result its com port changes while uploading.Kindly guide me how to solve this problem as due to it uploading becomes really unreliable .

    • Hi there, it sounds like you are still looking for technical assistance. Again, please use the link in the banner above, to get started with posting a topic in our forums. Our technical support team will do their best to assist you; however, again, this bootloader issue is probably outside the scope of their support capabilities and you may need to reach out to Nordic for help.

  • 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 -> https://github.com/adafruit/Adafruit_nRF52_Bootloader and then I used the sparkfun demo script below instead of the example blinky sketch that came with the software and it started working.

      https://learn.sparkfun.com/tutorials/nrf52840-development-with-arduino-and-circuitpython/all

  • 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 code.py, nothing happens. If I do a reset, code.py is gone. I tried erase_filesystem() and got the same behavior. Any ideas? Thx


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