3 ms·
>PWM the lights so the fish aren't freaked out How certain are you the fish can't see the PWM?
by dTal 6y ago
>PWM the lights so the fish aren't freaked out
How certain are you the fish can't see the PWM?
- sowbug 6y agoHaha, good point. I believe the ESP8266 default PWM frequency (via the Arduino library) is 1KHz, which is well above the ranges cited in the Wikipedia article for flicker fusion threshold across animal species. In my very limited testing, my fish didn't flee under plants as readily when the lights turned on more gently. https://en.wikipedia.org/wiki/Flicker_fusion_threshold https://en.wikipedia.org/wiki/Flicker_fusion_threshold