MicroPython Forum (Archive)

Roberthh wrote: ↑

Sun Apr 25, 2021 5:13 pm

Does the device manager show some unknown devices? In that case re-installing the ch340 device driver could help.

Did not find any unknown devices.

Yup. If it does not turn up as USB device, there is little you can do with software. So it looks like a hardware fault. The Wemos D1 Mini is generally pretty robust. You definitely cannot break it with wrong code. But that does not mean it cannot break. Checking the USB connector on the board is ma...

That's bad. There are a few options: a) The USB cable broke. Try another cable b) The device switched to another COM port. Did you look into the device manager, if there are any changes when you plug and unplug the board? c) Try anther USB port on the PC d) reboot the PC (unlikely to help, but .......

You can clear the memory using esptool.py and the option erase_flash: python3 esptool.py -p <uart_port_name> erase_flash or with the Makefile from the repository, calling make erase which in turn calls esptool.py. Then you can start over by uploading the firmware and setting up the file system#s co...

Since I accidentally have an error in my boot.py, the ESP8266 does not boot anymore. I already tried to reset it via pin D3 -> GND, D8 -> GND or D4 -> 3.3V, but it didn't work. Therefore the ESP is not recognized when connecting to the PC. Neither from Linux nor from Windows. boot.py: #import esp #e...