I have an arduino leonardo connected to my windows 11 laptop. it is not being recognized. the green light turns on and the yellow light flashes when its plugged in. I've tried different cables, different USB ports, and I tried whatever i could find in the arduino help
A no-show in Device Manager ?
Does it flash with one second on, one second off? That would be the preloaded blink sketch? If it flashes differently, please let us know.
Is this your first venture into Arduino or do you have experience with other boards like Uno or Mega.
Can you tell us something about the history of the board? Is it new? Where did you buy it (link please)? Did it work in the past and started failing after you loaded your own sketch?
Just some points to check.
- The Leonardo uses a microUSB connector. MicroUSB cables come in two flavours, charge-only and data/sync; you need the latter one. Cables used to charge e.g. BT speakers or charge power banks are in general charge-only.
- When you double-tap the reset (a single tap should be sufficient), does the L-LED fade-in and fade-out for a while (approximately 8 seconds)? During that time, Windows device manager should show you something in the line of "Arduino Leonardo (bootloader)".
If the L-LED does the fading but Windows does not see the board in device manager, you more than likely are using a charge-only cable (or you have a board with e.g. a broken or badly soldered USB connector. - If Windows recognises the board after a double-tap reset but does not recognise it during normal operation, the loaded sketch corrupts some functionality that is needed for the detection of the board. You can work around that; instructions that can help to solve the issue will follow once you have addressed the above questions and points.
Your topic has been moved to a category that is more dedicated to the type of problem that you are experiencing.
Never mind, it was a wrong cable. It turns out all my cables exept like one were power and not data
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.