Some weeks ago I built a little circuit to get sound in the Arduino.
Here’s a picture of the LM386 circuit:
The next step was to include a rectifier to get only positive voltage:
The input to the controller was a little nervous, so I built a little LowPassFilter:
Now the signal was rather good and I included it to my sketch with a RGB-Led.
Posted in Arduino, Elektronik, Licht |
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