I would like to purchase arduino uno IDE board and sensor to program to
detect a two beep sound from computer then to tell arduino to perform action like set out
to logic high to turn on LED.
Can these two part do the jobs or you have other product can help to do
the task?
Please advise,
regards
Duc
Hello Duc.
We don’t have a specific part that does what you’re looking for, but Arduino has an example [here that might be helpful for your project. You’d need to build the circuit in that tutorial and find a microphone to use as an audio source. A Arduino Uno (or [SparkFun RedBoard) would work for for the microcontroller and our [Electret Microphone Breakout should work as an audio source.
You’d have to modify the example code to recognize the correct frequency and count the number of beeps, but I think that would probably do the trick for you.](SparkFun Electret Microphone Breakout - BOB-12758 - SparkFun Electronics)](https://www.sparkfun.com/products/13975)](https://www.arduino.cc/en/Tutorial/SimpleAudioFrequencyMeter)