Hi everyone,

I wanted to use ina219 with pca9685 but they shared the same i2c address 0x4:
0.

Luckily, there’s a fairly easy fix for this. All we need to do is solder two pins together. We’re going to bridge a0 and this will change our address to 0x41.

In order to check these run sudo i2cdetect -y 1 pm the raspberry pi:

After soldering it becomes:

You can solder a combination of pins for different addresses:
None = 0x40 (default)
A0 = 0x41
A1 = 0x44 (the one I’ve soldered to get 44)
A0 + A1 = 0x45