How to get aTCS230 Colour recognition sensor-green light to drive nema23 motor

Hi Guys, I'm really new to this but it is great to try different things. I want to drive a motor from a green light signal, wanting to use the TCS230 sensor to signal the start of a nema 23 closed loop stepper motor with driver. I was wondering if anyone could help me with this and the parts I would need.
many thanks as you can see by my name total novice, I can design the machine but not the electronics.
best regards TN