Getting Certs from ESP32

No idea about Windows, but on a Mac you should lower the default baud rate to 115200. Btw this is now possible to change via web interface in the latest develop branch.

Besides that, Micro-USB UARts seem to work more reliable than USB-C.

thx for helping Marco,

now i am on the develop brach with my docker container. still no luck.

my UART adapter has USB-A and the others mini-USB. both working well.

i try esptool directly , but i could not even read the ESP Chip version, just getting transfer errors.

but the pogoPins sits very well. and with putty i get output.

It is brandnew Box btw. but the firmware version are the same, as in the documentation.

Frankly, I am not an expert and have low to no knowledge about programming. Hope I do not guide you into wrong direction.

Try this:

  1. make sure your battery is fully powered if you are not connected via Plug
  2. if you shortcut J100 I found out best way is to quickly do this step by step:
  1. unplug from power
  2. Shortcut J100
  3. Start Flashing Tool from Teddycloud Web UI
  4. Immediately plug power e.g via battery
  5. Wait until Web UI shows it has found esp32 and is starting download Certs
  6. Remove the J100 shortcut device… This is something I found is working best for me. If I left the shortcut attached sometimes the esp32 got disconnected and I was unable to read the flash.
  7. Run the process and follow the step by step guide from web ui. You need to cut power off once in the process. Start again with 2. When power is off.

Hope this helps you.

And yes baud rate should be around 115200 or less.

By the way: we tested the UART USB device by connecting RX and TX on the USB device to see if it is receiving signals which indicates device is ok and can transfer and receive signals on your computer. Try this as well.