[ERROR] i2c device open failed

[nimerf]

Hi everybody,

I try to launch the node with the command :
rosrun pwm_pca9685 pca9685_node
But I keep have the same error : i2c device open failed
My I2C port works correctly, the command sudo i2cdetect -y 1 sees the board

Do you have any idea of the source of the problem ?

[nimerf]

I found the problem, if some have the same issue, you just need to setting the i2c to no root users.