arduino + python interface (testing serial)

arduino.c

int PIN = 7;
char message;

void setup() {
    Serial.begin(9600);
    pinMode(PIN, OUTPUT);
}

void loop() {
  if (Serial.available() > 0) {
    message = Serial.read();

     if (message == 'A') {
       digitalWrite(PIN, HIGH);
     }
  
     if (message == 'B') {
       digitalWrite(PIN, LOW);
     }
  }
}

gistfile1.md

1. interface microphone -> python (pyaudio)
2. microphone audio -> spectrum analyse
3. analysis > generate color values in one char
4. rgb values -> arduino
5. arduino > manipulate stripe colors (neopixel)

stripe colors manipulation

from sound's FREQUENCY and AMPLITUDE, we send an array with a (0,255) value based on amplitude for each of the 60 LEDS.

led[0] = amplitude
led[1] = amplitude
led[2] = ...

serial.py

import serial
import time

arduino = serial.Serial("/dev/cu.wchusbserial1430", 9600)
time.sleep(2)

arduino.write("A")
print 'wrote A'

time.sleep(0.5)

arduino.write("B")
print 'wrote B'

arduino.close()