I have two UNO boards connected with I2C and the HMC6352 digital compass which also communicates with the master board over I2C. Is this scenario possible? All three devices are connected to SDA (A4) and SCL (A5). While testing the HMC6352 sketch and having the two boards also connected the program…

UNOs - Master-Slave and HMC6352 dig compass all three over I2C

pylon November 19, 2012, 4:36pm 2

Are the grounds connected? What pull-ups do you use?

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