I am looking for a device that can detect a specific color of light from a range of to feet away approximately. The device should work while in motion and moving closer to the light that should be detected. The sensor would ideally be able to detect a specific light color / shade being emitted (IE the color of a red light at a stoplight).
Where can I find this type of sensor?
Thanks!
✅ Answers
? Favorite Answer
Use a photodiode or phototransistor and cover it using a red filter.
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