Device Components
- Arduino Uno R3 (GeekCreit)
- Audio Hacker – Hardware platform that mounts onto Arduino for FFT, https://nootropicdesign.com/audiohacker/
- Spy Listener Microphone
- Auxiliary Cable
- USB Cable A to B
- (Alt) CMA-4544PF-W Electret Microphone, https://cdn-shop.adafruit.com/datasheets/CMA-4544PF-W.pdf, https://smile.amazon.com/Cylewet-Cylindrical-Electret-Condenser-Microphone/dp/B01N0VMN9P/ref=sr_1_1_sspa?ie=UTF8&qid=1509647665&sr=8-1-spons&keywords=electret+microphone&psc=1
- (Alt) 10K Ohm Resistor
- (Alt) Wires
Wiring
- (Alt) Wire Microphone to Audio Hacker, https://nootropicdesign.com/projectlab/2013/07/05/electret-microphone-audio-hacker/
- (Alt) How Electret Condenser Microphones Work, https://www.engineersgarage.com/insight/how-electret-condenser-microphone-works
Code
- Arduino Language Reference, https://www.arduino.cc/reference/en/
- Audio Hacker Library, https://nootropicdesign.com/audiohacker/index.html#library
- Record/Playback Project: Sampler_12bit code, https://nootropicdesign.com/projectlab/2013/07/05/audio-sampler/
- Instructables: Arduino Audio Input, http://www.instructables.com/id/Arduino-Audio-Input/
- Instructables: Arduino Frequency Detection, http://www.instructables.com/id/Arduino-Frequency-Detection/
- Instructables: Arduino Guitar Tuner, http://www.instructables.com/id/Arduino-Guitar-Tuner/
- Instructables: Electret Microphone, http://www.instructables.com/id/Electret-microphone/
- Guitar Note Frequencies, http://www.oocities.org/rjwarren_stm/Physics_Notes/GuitarFrequencies.html, https://music.stackexchange.com/questions/42694/what-is-a-chord-in-terms-of-frequencies (Typo: 393.7 should be 293.7)
- Calculating Guitar Chords (Example with G Chord) https://www.wolframalpha.com/input/?i=y%3Dsin(98t)%2Bsin(123.5t)%2Bsin(146.8t)%2Bsin(196t)%2Bsin(246.9t)%2Bsin(392t)