Hello all, I am trying to send data from 7 RFID MFRC522 readers, each connected to an Arduino behaving as a master, to a single shared Arduino that is behaving as a slave. So 7 master Arduinos and 1 slave Arduino. I've done this so I can control when the data would be sent to the slave Arduino as i…

Can't send data from several master Arduinos to a single slave Arduino over I2C

ard_newbie April 14, 2018, 8:38am 4

A CAN bus might the solution, any node can send a request to any other node (up to 120 nodes).

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