Quote:
Originally Posted by meicheng
I've plugged it into one randomly selected port of the relay ports on the sidecar. There is no clicking sound now, but there is no LED signal.
Does anyone know what's wrong now? We're already looking over our programming, but does anyone know any other probable causes?
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"Randomly selected"? You may have already considered this, but you have to place the PWM cable into a specific port (such as port #1), and then reference that specific port in your code as well. As others have said, LEDs will light up with different output states (as managed by your code) when the Digital Sidecar is trying to send signals to the Spike.