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I used the same in my camera to send files to my PC https://www.amazon.com/s?k=eyefi&hvadid=77653076595217&hvbmt=be&hvdev=c&hvqmt=e&tag=mh0b-20&ref=pd_sl_lsvk9elo3_e


The most simple solution will be an SD card with WiFi capabilities. Put it in a USB card reader so that the machine can use it as storage. Then connect to the card via WiFi.


Just to have the full working code, I ended up with this: #include <EEPROM.h> char serial_characters[] = {"ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"}; // 7 chars for serial and one for string end '\0' char serial_number[8]; void setup() { Serial.begin(115200); EEPROM.get(0, serial_number); // check found format if (serial_number[0] == 'S' &...


You are saving a String object in EEPROM, which is useless. A string object does not store the contents of your string. Instead, it just stores: the memory address where the actual contents (the characters) is stored the amount of memory allocated for this contents the number of characters that actually make the string This is what you are storing to, and ...

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