Hey!
Anyone who has tried using multiple qwiic rfid readers to only one microcontroller over one i2c?
Haven’t tried it and I don’t think we have code for using more than one, but as long as each board has a unique address (there are two addresses available) you can connect two up to the same I2C bus.
Anymore than two and you would need a [Qwiic MUX.](SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A) - BOB-16784 - SparkFun Electronics)