@kevina Sorry, you didn't say in your original post you didn't have the module + pysense. The output is as follows: >>> i2c.scan() [8, 30, 41, 64, 96] You can also look through the libraries here to figure out the addresses: https://github.com/pycom/pycom-libraries/tree/master/pysense/lib 8 = PIC microcontroller (UART + deepsleep) 30 = LIS2HH12 41 = LTR329ALS01 64 = SI7006A20 96 = MPL3115A2