I have one project posted that works well.
I have a microphone taped to an Amazon echo. When sound is detected from the echo device the ardiuno drives a single color LED to mimic the digital input from the microphone.
Unfortunately ambient sound is triggering this circuit. I would like to eliminate the microphone and connect directly to the echo's headphone jack. I've seen posts that uses an analog input but it's difficult to dial in. The LED doesn't mimic the sound as well as the digital input did and I was not expecting volume level to have a significant effect.
Is there a device similar to a microphone but uses a headphone jack to provide a digital input?
If there was a clear and detailed tutorial on how to use analog input I would consider trying it but again I don't think analog setup mimics the sound coming from the echo device as well as the digital input did
Any input is appreciated
NOTE: My current setup is based on a tutorial someone created "Animate a Billy Bass Mouth" This is sound level dependant and again the LED doesn't mimic the sound very well.