Adafruit Feather 32u4 Adalogger (ADA2795)

Support Product Questions
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This is a placeholder topic for “Adafruit Feather 32u4 Adalogger” comments.

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! Adafruit designed Feather to be a new standard for portable…

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just bought a adafruit feather 32u4 from you. I cannot get it to work with windows 10 or 11. Comes up in device manager as other device/ATm32U4DFU but has no driver and I can’t find one anywhere. So doesn’t come up as a port on the Arduino IDE.
I’ve spent the last hour searching online to no avail.

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Have you looked at this one?

What was the result (eg, driver not compatible, failed to install, installs but doesn’t work, or something else)?

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Thanks, already tried installing those drivers.
When I plug in the Feather 32U4 windows device manager come up with ATM32u4DFU in the other devices list with a yellow warning triangle. No driver available.

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What was the result when you installed that driver? Where there any error messages or warnings during the install or did the operation complete successfully?

Whether or not you saw an error, you could try repeating the install when you are logged in with administrator privileges.

Did you try selecting “Update Driver” for device manager and pointing the update procedure to the folder where you unzipped the driver installation file?

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Ive tried on 3 computers 2 windows 10 and one windows 11.

After initial plugging in windows seems to go looking for a driver and after a while comes back with device set up and ready (or words to that effect). However device manager says there is no driver installed for that device.
I tried pointing device manager update driver to the folder with the pololu a-star.inf file but it says it cant find a driver there.

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That sounds like the device has been updated but the driver is an old version. Can you see an ID for the device ATM32u4DFU in Device Manager - something like
USB\VID_1FFB&PID_0101
USB\VID_1FFB&PID_2300&MI_00

Sometimes those device IDs will give you a useful search term for finding the driver.

This utility will enable you to confirm that the recommended driver was installed properly:
Release DriverStore Explorer v0.11.92 · lostindark/DriverStoreExplorer (github.com)
It’s under Ports(COM & LPT) as ‘a-star.inf’. Unfortunately it won’t tell you why the device can’t find the driver.

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USB\VID_03EB&PID_2FF4&REV_0000

USB\VID_03EB&PID_2FF4

just read this thread https://forum.arduino.cc/t/missing-arduino-uno-wifi-rev-2-windows-10-driver/660237/4

mine does not blink when reset. I’m guessing maybe no bootloader installed and faulty production?
Support at CORE tested one in the shop and it worked.
Thanks
Craig

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That device ID will not match the driver you have, but I don’t know why. Perhaps the ID is wrong because the bootloader isn’t installed, or perhaps the driver is too far out of date.

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If you search on that ID and ‘driver’ then you will get two drivers. They do not seem to relate to this device but that might just be because they are generic drivers and only some manufacturers have made them available as downloads. Note that both are available as ZIP files, which means you can examine the driver files before proceeding, so they should be quite safe to use (you should never install drivers that are supplied as EXE files). You could confirm whether or not the problem is with the drivers or the device bootloader by comparing the ID you have for the device with the ID that Core has for their device which works.

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This is the method I followed to get this device working through the Arduino IDE:

  • Plugged in the Feather 32u4 to my Windows 10 computer and waited for the device to be setup by the system
  • Opened the Arduino IDE
  • Followed the steps on this website: Arduino IDE Setup | Adafruit Feather 32u4 Basic Proto | Adafruit Learning System
  • I then opened the board/port drop-down menu and clicked on the ‘Select other board and port…’ option
  • On the screen that opened up, I selected the port associated with this device (COM8 for me although this may change)
  • I scrolled down through the board options until I found ‘Adafruit Feather 32u4’
  • Click ‘OK’ after selecting this board and the correct port.
  • After doing this I was prompted to install the correct software for this board inside the Arduino IDE. Once I followed the install steps the board connected correctly and ran the example programs without issue.

If this doesn’t work for you then it may be an issue with the factory bootloader installation.

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Yes, I did all that before raising the issue. The problem is Windows does not recognise the device and so there is no active port for the Arduino IDE to use. Based on that email it suggests the fault is with the boot loader.
The replacement device I purchased worked correctly first time.

1 Like
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In Craigs’ specific case, the bootloader had a fault and the device needed to be replaced.

Hopefully, this is not the outcome most frequently experienced when running into issues with this device. If the steps above don’t work for you then the Feather may be faulty but I would still suggest running through them first in case it is a simple fix.

Hope this helps! :grinning: