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Problems interfacing with LIS2DE12 Accelerometer over I2C

Question asked by Sanchez.Carlos.002 on May 17, 2017

Hi All,
I am currently working on a project where I want to interface with the LIS2DE12 accelerometer and an Arduino Mini Pro (16MHz) w/ ATmega 328 over I2C. I am using the STEVAL-MKI175V1 as an LIS2DE12 adapter board. The following pins are connected:


SCL to A5
SDA to A4
SDO to 2.5V (This sets the device address 0x19. Connecting it to GND would change the address)
CS to 2.5V (This enables I2C)
VDD_IO to 2.5V (I have also tried VD_IO to RAW)


I am not using pull resistors as the ATmega 328 has internal pull resistors. Is this setup correct? The board also has VDD is there any difference between VDD_IO in this context. I also have to mention that I had previously connected SDO,CS and VDD_IO to 5v without me realizing  the max voltage for VDD_IO is 4.8 and CS and SDO have a max voltage of VDD_IO + 0.3. Did damage the STEVAL-MKI175V1 board? Is there a way to test if it was damaged?