![]() ![]() Whenever the signal (peak) is above the average in the array the light comes-on and whenever it's below average, it's off. I've done several sound activated lighting effects** and none of them have dimming - For example, the "world's simplest lighting effect" finds the peak 10 times per second, and once per second it saves the peak in a 20-element (20-second) moving-average array. Relays are electrically isolated and The industrial kind with screw terminals is super-easy to wire-up and fairly safe as long as you don't mix-up the AC & DC terminals or touch the AC connections. If you can skip the dimming, you can use a Solid State Relay on the output. That means you "flicker" it dimly by pulsing it infrequently. Incandescent lamps (including halogens) don't switch-on instantly. I suggest you skip the dimming, at least for your first-pass at this project. ![]() This is all possible, and I've done it a long time ago with a different microcontroller, but it's not "easy" and it's not really a beginner project. The zero-crossing sensor, as well as the TRIAC, has to be electrically isolated (typically optically isolated) from the low-voltage microcontroller. That means you need to sense the zero-crossing and synchronize the TRIAC triggering to the AC cycle. The reason for that is that TRIACs (used for controlling/switching power) don't shut-off until current falls to zero at the next zero crossing. An AC light dimmer works by turning-on the lamp for part of the 50/60Hz AC cycle. There is one tricky thing about your project description. On the input-side you can get a microphone board that has a microphone, preamp, and the required biased-output.* (This particular microphone board doesn't have a gain control and that can be an issue.) I thank you a lot for your attention and patience. Should I give up this idea and do this thing in a very simple way, or is it possible for a total noobie like me to build this project with a little help and instructions? I ask you to be honest and/or just helpful! Since I've never done anything like this, I only know simple soldering, have basic knowledge of electricity, and I don't know a thing about electronics or arduino code. This will be installed outdoors, probably hung on a tree, exposed to dust and maybe a little water. The goal is to build a safe and reliable interactive/reactive/dynamic lighting object for a Music Festival. the bulbs discretely alternate from low to medium intensity, but never totally off. And if there's just ambient noise of conversations, people eating, walking.If everybody starts singing loud, or shouting, the lights smoothly increase to full power and stay like that until the noise reduces.To be more precise, these lamps should independently increase or decrease their intensity in a smooth way, according to the ambient noise produced by people around: ![]() Sound reactive light structure with 6 or 7 regular halogen light bulbs (40W max. I'm desperately searching for a solution to build the following project: ![]()
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