PWM Servo Feedback (I2c) icon PWM Servo Feedback (I2c) Real-time servo position input via Arduino ADC over I2C; supports Nano (6 channels) or Mega (16), configurable I2C address and scalable chaining. Try it →

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#1  

Is this in a new, untouched project file, or in an already created file? Try in a new file and see if it works. Otherwise it might be a bug with ARC.

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#3  

I have try a new version of a example Roli and i can add this. Thanks for your help.