github/ebk_co2ampel
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angepasst fuer led ring, groesserer font, grenzwerte angepasst, messinterval auf 60s geaendert

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smash 2020-11-12 19:46:23 +01:00
parent 6a370798bd
commit 466d15a9f4
1 changed files with 29 additions and 10 deletions
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37
src/ebk_co2ampel.cpp
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@ -5,10 +5,10 @@
// Maximum CO² levels for green and yellow, everything above is considered red.
#define GREEN_CO2 800
#define YELLOW_CO2 1500
#define YELLOW_CO2 1000
// Measurement interval in miliseconds
#define INTERVAL 10000
#define INTERVAL 60000
// Pins for MH-Z19
#define RX_PIN 16
@ -21,10 +21,13 @@
// Pin for LED
#define LED_PIN 4
// number of LEDs connected
#define NUMPIXELS 12
MHZ19 myMHZ19;
HardwareSerial mySerial(1);
SSD1306Wire display(0x3c, SDA_PIN, SCL_PIN);
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(1, LED_PIN, NEO_RGB + NEO_KHZ400);
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, LED_PIN, NEO_RGB + NEO_KHZ400);
unsigned long getDataTimer = 0;
int lastvals[120];
@ -34,19 +37,24 @@ void setup() {
Serial.begin(9600);
mySerial.begin(9600, SERIAL_8N1, RX_PIN, TX_PIN);
myMHZ19.begin(mySerial);
pixels.clear();
display.init();
display.setContrast(255);
delay(1000);
display.clear();
display.flipScreenVertically();
dheight = display.getHeight();
myMHZ19.autoCalibration();
// Fill array of last measurements with -1
for (int x = 0; x <= 119; x = x + 1) {
lastvals[x] = -1;
}
pixels.begin();
pixels.setPixelColor(0, 30,0,0);
pixels.show();
for(int i=0; i<NUMPIXELS; i++) {
pixels.setPixelColor(i, pixels.Color(0, 0, 50));
pixels.show();
}
}
int calc_vpos_for_co2(int co2val, int display_height) {
@ -56,13 +64,22 @@ int calc_vpos_for_co2(int co2val, int display_height) {
void set_led_color(int co2) {
if (co2 < GREEN_CO2) {
// Green
pixels.setPixelColor(0, 30,0,0);
for(int i=0; i<NUMPIXELS; i++) {
pixels.setPixelColor(i, 30,0,0);
pixels.show();
}
} else if (co2 < YELLOW_CO2) {
// Yellow
pixels.setPixelColor(0, 40,40, 0);
for(int i=0; i<NUMPIXELS; i++) {
pixels.setPixelColor(i, 40,40,0);
pixels.show();
}
} else {
// Red
pixels.setPixelColor(0, 0,90,0);
for(int i=0; i<NUMPIXELS; i++) {
pixels.setPixelColor(i, 0,90,0);
pixels.show();
}
}
pixels.show();
}
@ -90,7 +107,9 @@ void loop() {
// Set LED color and print value on display
set_led_color(CO2);
display.setLogBuffer(1, 30);
display.println(CO2);
display.setFont(Cousine_Regular_54);
display.setTextAlignment(TEXT_ALIGN_CENTER);
display.drawString(64 ,0 , String(CO2));
display.drawLogBuffer(0, 0);
display.display();
// Debug output