/*
This is the code for the AirGradient DIY CO2 Traffic light with an ESP8266 Microcontroller.

For build instructions please visit https://www.airgradient.com/diy-co2-traffic-light/

Compatible with the following sensors:
SenseAir S8 (CO2 Sensor)

Please install ESP8266 board manager (tested with version 3.0.0)

Please install the following libraries:
AirGradient
Adafruit NeoPixel Library

If you are a school or university contact us for a free trial on the AirGradient platform.
https://www.airgradient.com/schools/

MIT License
*/

#include <Adafruit_NeoPixel.h>
#include <AirGradient.h>

Adafruit_NeoPixel pixels(64, D8, NEO_GRB + NEO_KHZ800);
AirGradient ag = AirGradient();


void setup(){
  Serial.begin(9600);
  ag.CO2_Init();
  pixels.begin();
  pixels.setBrightness(24);
}

void loop(){
int CO2 = ag.getCO2_Raw();
Serial.print("C02: ");
Serial.println(ag.getCO2());

if (CO2 > 1200) {
  showColor("red");
} else if (CO2 > 800) {
  showColor("orange");
} else {
  showColor("green");
}

delay(10000);
}

void showColor(String clr) {
  
pixels.clear();

if (clr=="green"){
  for(int i=0; i<65; i++) { 
    pixels.setPixelColor(i, 0, 255, 0);
  }
}

if (clr=="orange"){
  for(int i=0; i<65; i++) { 
    pixels.setPixelColor(i, 255, 99, 0);
  }
}

if (clr=="red"){
  for(int i=0; i<65; i++) { 
    pixels.setPixelColor(i, 255, 0, 0);

  }
}
    pixels.show();   

}