Fix unique topic Generation

[Mich21050]

On some generic ESP32 based boards the ESP.getChipId() function doesn't return a uniquie id. Which is a big problem when trying to use multiple esp32 blinds. I replaces the ESP.getChipId function with a custom one that uses the MAC Adress to generate an ID. Still not 100% uniquie but better then before,

[eg321]

Hi!

I was lucky with my ESPs, they have unique ID, but I know about this issue. Thanks for pointing to it again.

There are 2 comments regarding the way how you propose to resolve the issue:

1. Your changes are not compatible with ESP8266. There are no "getEfuseMac" method at ESP8266. I would to continue support of ESP8266 while it's possible.
2. Take a look here:

   esp32-motorized-roller-blinds/src/Helpers/ConfigHelper.h

   Line 15 in c73b009

   #define ESP_getChipId() ((uint32_t)ESP.getEfuseMac())

   
   There is already different implementation for ESP32 and ESP8266. I', expecting your changes somewhere there.

It can be something like this:

#ifdef ESP32
    inline uint32_t generateId() {
        uint32_t id = 0;
        for(int i=0; i<17; i=i+8) {
            id |= ((ESP.getEfuseMac() >> (40 - i)) & 0xff) << i;
        }
        return id;
    }

    #define ESP_getChipId()   (generateId())
#endif

Thanks!

[eg321]

waiting for changes described above.