Arduino UNO firmware using ESP8266 (or ESP32), download Finmare from the Cloud

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1

Hi,

Is it possible to implement the following system?

ESP8266 (or ESP32) is connected to the Internet and check the firmware version. If suddenly the version is updated - ESP downloads the update and updates the Arduino UNO, which will be connected via UART. I found examples when OTA updates are performed by ESP, but ESP itself was updated there, not UNO.

2

Something similar to this?

3

Riva:
Something similar to this?

Riva, this uses AT firmware and not the esp8266 but the Uno checks for update.

ISP over ICSP pins is a better option and has an ESP8266AVRISP library.

Over UART a library exists, but is little known. The WiFiLink firmware uses it.

I can help with both options.