I am trying to communicate with an arduino from my rock pi 4, but it is telling me
I2C Setup failed: -1. How do I begin debugging wiringx?
I checked the cables (sda, scl, gnd). Everything is powered. They are both on the same channel (0x04). wiringx compiled correctly. And the arduino is sending signals correctly. Just seems like the rockpi is not reading the i2c signals correctly.