I left a speaker hat attached to an M5 StickC Plus, I'm not sure that's affected anything, but it seems to have drained the battery and now I cannot get it to power on.

To fix it I have tried:

[1] Attaching it to a PC via a USB cable. The COM port appears, I cannot upload code to it via the Arduino IDE. I get "Failed uploading: uploading error: exit status 2"

[2] Using M5 Burner. When I attach the M5 Stick M5 Burner reports that it has "Found new device". However, I can't flash it via M5 Burner and I can't erase it via M5 Burner. When I try it says "A fatal error occurred, the COM port doesn't exist"

[3] I have left it attached to 2 different chargers for 1 hour + each. Still no charge.

[4] I have tried attaching 3 x AA batteries to the 5v In and GND pins on the top header row. No change.

Is it completely dead? Any thoughts on what I can do to get it going again?

I am trying to get the M5StickCPlus to talk to an Arduino Uno via the HC05 Bluetooth adapter, and I can't get them to connect.

For the M5StickCPlus I'm using BluetoothSerial.h to set up the connection via BluetoothSerial.connect(<Name or Address>) - but it doesn't work with either name or address.

I've tried changing the AT commands on the HC05 to make it automatically pair with the M5StickC, but that doesn't work either.

I can, of course, connect to both via Android.

Any thoughts on how to make this pairing work?

Thanks!

I finally have it working!

Can anyone point me in the right direction? Searched all over for it, tried downloading every related Arduino library I can find, but no luck.

Thanks!