The Science Behind It
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The project involves using the electrical conductivity of the plant to generate signals, which can then be converted into musical notes. The Arduino Nano reads the changes in resistance from the plant, processes the data, and translates it into MIDI notes or audio signals, which are then played through an audio amplifier.
1
The Electrodes
The electrodes measure the electrical resistance in the plant, which varies based on the plant's biofeedback.
2
The Arduino
The Arduino reads this analog signal and maps it to a frequency range that humans can hear.
3
The Frequency
The mapped frequency is played using the tone() function, which generates a square wave.
4
The SD Card
The SD card can be used to store various audio samples or notes, which you can play back using the TMRpcm library if you want more complex sounds.