I'm starting a project that evolve some kind of multiple small physical IoT objects that can be plugged dynamically to a wood board and trigger some leds. My question is so simple that I'm afraid of posting it :D How I can store, inside each of those small objects, a regular ID as 12345 ?
- I want to be able to read that dynamically, as the object can be plugged/unplugged on demand on the board.
- I want those objects to be passive (without battery) with just Non-volatile memory
I run everything with a RaspberryPi and an arduino (ESP8266).
I've looked into EEPROM, NFC tags, etc... In fact, I would like exactly what an NFC tags is able to do but without the antenna and the reader...
Do you have ideas and/or examples of projects that could help me ?