So tried the I2C scanner sketch on a dfrobot romeo v2.2 (a Leonardo clone) and I’m getting all three addresses for the fm receiver 0x10, 0x11, and 0x60 now!
I don’t have another Uno clone like the Seeeduino in the Grove beginner kit so I can’t confirm if it is just a difference in the ATmega328p and the ATmega32u4.
Any thoughts why 0x10 and 0x11 don’t work on the Seeeduino Lotus but do work on a Leonardo clone?