ESP8266 Community Forum

- Fri Aug 21, 2020 2:22 pm #88416 I doubt someone sells an esp with the one month old AT firmware 2.1.
the firmware update is same on esp-01 as on esp-12. you need and USB-to-TTL-Serial adapter, some wires and resistors.
it is easy to flash the firmware to an esp dev board like Wemos because the USB adapter and the required wiring are on board.

- Fri Aug 28, 2020 6:47 am #88516

https://www.espressif.com/en/support/download/at

but they didn't built a version of AT 2.1 for esp-01. I have it here
https://github.com/jandrassy/UnoWiFiDev ... T_V2.1.zip

The flashing command of AT2 with esptool is

Code: Select allesptool.py write-flash @download.config

I recommend to change in download.config file flash_mode to dout

https://github.com/espressif/esptool

and the commands reference
https://docs.espressif.com/projects/esp ... index.html

Hi, I have got myself a usb programmer for the ESP-01

Is there a none python command line way of updating the firmware, it looks quite messy when I looked into that? I have seen videos using software called "ESP8266 DOWNLOAD TOOL v3.4.4" could this be used, if so which bin files would you flash as there are a number of them with the AT 2.1 firmware

Thanks in advance