I2C reading of 12S battery

[Nikos Mavr]

Hi all,

I am trying to replace the voxl2 i2c inputs with those of an i2c power module installed closer to the supply source that can read the actual 12S source of the drone I am working on . The problem with this is that even with a level shifter or without I am not able to even find my device with i2cdetect, let alone receive readings. The module uses sen228, but i suspect that the problem could be the different pull up circuit of the different module. Could there be any feedback on that?

[Eric Katzfey]

@Nikos-Mavr Which pins are you using? i2cdetect is only looking at i2c ports on the Linux (applications) processor. For PX4, the standard i2c ports are mapped to the DSP (aka SLPI) so you wouldn't see them.