BMM150 I2C wiring
Phil.Marshall 2025-01-24 17:56:47 669 Views1 Replies I can't seem to mount my BMM150 it doesn't show up on the I2C register. I can't really make sense of the wirng diagram in the Wiki. it says to use GPIO 2 for SDA and GPIO 9 for the SCK but it's usually GPIO 3 for I2C 1 on a Raspberry Pi. Am I missing something either wiring arrangement doesn't show up on I2C 0x13 as stated!
2025-01-26 17:32:48 
Lupin
GPIO 9 seems wrong to me on Raspberry Pi (Zero, 4, 5, etc.) because this is the SPIO MOSI. I would recommend to connect SDA Pin (BMM150) to GPIO 2 (Raspberry Pi PIN 3), SCL Pin (BMM150) to GPIO 3 (Raspberry Pi PIN 5).
Lupin 
