Feather nRF52840 not working at all

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Motorhead02
 
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Feather nRF52840 not working at all

Post by Motorhead02 »

Hi, I recently bought a feather nRF52840 to make the dark saber project, but nothing is working. the board doesn't show up in the bluefruit app and doesn't do anything to the components added to it. I have checked the files on the board countless times and made sure the wiring is correct. could I please have some help?

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danhalbert
 
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Re: Feather nRF52840 not working at all

Post by danhalbert »

We need some more info.

1. Did the board ever work?
2. Did you try the board before wiring it up?

3. Please post pictures of your assembly work, including clear pictures of your soldering.
4. Have you loaded software onto the board? How did you do that?
5. Have you connected to the board over serial USB to see what it prints when it tries to run? It might be printing an error.

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Etoain
 
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Re: Feather nRF52840 not working at all

Post by Etoain »

I am having the exact same problem.
I bought two of the nRF52840's and card of NeoPixels
I have the feather powered with the LiPo I bought from you, and it blinks
BUT
it does not show up on any list of BlueTooth devices on either my iPhone nor my Samsung s10e android.
Yes, I have BlueFruit Connect App installed.
I would be happy to RTFM, but I have NOT received any FM...

Trying to replicate this for starters: https://www.adafruit.com/product/3406
the nice colorPicker example. HELP?

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danhalbert
 
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Re: Feather nRF52840 not working at all

Post by danhalbert »

Could you try the example with an older version of CircuitPython?

Use https://adafruit-circuit-python.s3.amaz ... -6.3.0.uf2, and use the libraries from this bundle: https://github.com/adafruit/Adafruit_Ci ... 211213.zip

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Motorhead02
 
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Re: Feather nRF52840 not working at all

Post by Motorhead02 »

only "Info" shows up as one of the modules when connected

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Motorhead02
 
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Re: Feather nRF52840 not working at all

Post by Motorhead02 »

The instructions for the project say that a module called controller should show up, but only info appears

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danhalbert
 
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Re: Feather nRF52840 not working at all

Post by danhalbert »

1. What is your host computer, and what operating system is it running?
2. What files are in CIRCUITPY? A screenshot would be fine.
3. What files are in lib?
4. What is in code.py? You can upload the file here as an attachment.
5. What version of CircuitPython are you running, and did you get libraries from the latest bundle?
6. Please connect to the board Serial port when code.py is running, and show any output (in case there is an error). How to do that is described here:
https://learn.adafruit.com/welcome-to-c ... al-console

Thanks!

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Motorhead02
 
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Re: Feather nRF52840 not working at all

Post by Motorhead02 »

Here's the code and screenshot of what is uploaded to the board
Attachments
code.py
(8.63 KiB) Downloaded 5 times
Screen Shot 2022-03-03 at 12.04.54 PM.png
Screen Shot 2022-03-03 at 12.04.54 PM.png (162.71 KiB) Viewed 187 times

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danhalbert
 
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Re: Feather nRF52840 not working at all

Post by danhalbert »

Ok, the "CircuitPython 7.x" folder should not be there. Move everything in it to the top level of the CIRCUITPY drive, and then remove the CircuitPython 7.x folder. You do not need the README.txt file

There is probably already an existing code.py and lib at the top level, so remove those first.

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Motorhead02
 
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Re: Feather nRF52840 not working at all

Post by Motorhead02 »

Thanks! that worked!

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danhalbert
 
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Re: Feather nRF52840 not working at all

Post by danhalbert »

Great! Glad to hear!

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