how do i use the 1 to 3 hub? when i connect 3 units (angle, ext and op-180˚) i get an error message saying: Please change unit to other grove port. do i need to use the custom ports?

@capacious Ah ok thanks. Do you know how to use the 1 to 3 Hub because when i connect 3 devices to the hub i get the error message: Please change unit to other grove. Do I need to select custom ports for these devices?

If I use variables to control the red green and blue values I get an error message which says: name 'rgb' isn't defined
this however does not occur when I use the default values. Does anyone know how to fix this?

This is the code im running:

@world101 so the 1 to 3 Hub is used for 3 different i2C addresses?