I2C Address 0x02


#1

It seems 0x02 is used internally on the system or otherwise unavailable is there a way to use a I2C device with this address.


#2

Which module are you using (eg. WP8548) and which board (eg. mangOH Green)?

I’m not aware of anything listening on address 0x02, but it seems that 0x02 is a special address in I2C. Look at section 3.1.12 on page 17 of the I2C specification (PDF).

The address reserved for a different bus format is included to enable I2C and other protocols to be mixed.
Only I2C-bus compatible devices that can work with such formats and protocols are allowed to respond to
this address.


#3

Using wp85 yes 0x02 is a special address it worked previously the lightning detector uses low addresses was a oversight on the alpha board and has been changed for beta board.

Thank you for replying