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https://github.com/Eigenbaukombinat/ebk_co2ampel.git
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Kommentare übersetzt
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1 changed files with 44 additions and 37 deletions
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@ -6,27 +6,28 @@
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#include <Preferences.h>
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#include "uptime_formatter.h"
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// Maximum CO² levels for green and yellow, everything above is considered red.
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// Grenzwerte für die CO2 Werte für grün und gelb, alles überhalb davon bedeutet rot
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#define GREEN_CO2 800
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#define YELLOW_CO2 1000
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// Measurement interval in miliseconds
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#define INTERVAL 15000
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#define CALINTERVAL 180000
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// CO2 Messintervall in Milisekunden
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#define INTERVAL 15*1000
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// Dauer der Kalibrierungsphase in Milisekunden
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#define CALINTERVAL 180*1000
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// Pins for MH-Z19
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// Pins für den MH-Z19b
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#define RX_PIN 16
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#define TX_PIN 17
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// Pins for SD1306
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// Pins für das SD1306 OLED-Display
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#define SDA_PIN 21
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#define SCL_PIN 22
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// Pin for LED
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// Pin für den LED-Ring
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#define LED_PIN 4
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// number of LEDs connected
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#define NUMPIXELS 12
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// Anzahl der angeschlossenen LEDs am Ring
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#define NUMPIXELS 8
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Preferences preferences;
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@ -49,17 +50,17 @@ void switchBootMode(int bm){
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switch (bm){
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case 23:
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preferences.putUInt("cal", 42);
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Serial.println("startmodus naechster reboot: messmodus");
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Serial.println("Startmodus nächster Reboot: Messmodus");
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break;
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case 42:
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preferences.putUInt("cal", 23);
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Serial.println("startmodus naechster reboot: kalibrierungsmodus");
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Serial.println("Startmodus nächster Reboot: Kalibrierungsmodus");
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break;
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case 69:
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Serial.println("EEPROM lesen war nicht moeglich!");
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Serial.println("EEPROM lesen war nicht möglich!");
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break;
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default:
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Serial.print("EEPROM lesen lieferte unerwarteten wert: ");
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Serial.print("EEPROM lesen lieferte unerwarteten Wert: ");
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Serial.println(bm);
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break;
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}
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@ -69,11 +70,23 @@ void setup() {
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Serial.begin(115200);
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Serial.println("Starte...");
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Serial.print("CO2-Ampel Firmware: ");Serial.println(ampelversion);
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// Ab hier Bootmodus initialisieren und festlegen
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preferences.begin("co2", false);
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tocalibrateornot = preferences.getUInt("cal",69); // wir lesen unser flag ein, 23 = reboot vor safezone, wir wollen kalibrieren, 42 = reboot nach safezone, wir tun nichts
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tocalibrateornot = preferences.getUInt("cal",69); // wir lesen unser flag ein,
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// 23 = reboot vor safezone, wir wollen kalibrieren,
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// 42 = reboot nach safezone, wir tun nichts
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preferences.putUInt("cal", 23); // wir sind gerade gestartet
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switch(tocalibrateornot){
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case 23:
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Serial.println("Startmodus Aktuell: Kalibrierungsmodus");
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break;
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case 42:
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Serial.println("Startmodus Aktuell: Messmodus");
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break;
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}
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// Ab hier Display einrichten
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display.init();
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display.setFont(Cousine_Regular_54);
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display.setContrast(255);
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@ -85,9 +98,10 @@ void setup() {
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display.display();
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dheight = display.getHeight();
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// Ab hier Sensor einrichten
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mySerial.begin(9600, SERIAL_8N1, RX_PIN, TX_PIN);
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myMHZ19.begin(mySerial);
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myMHZ19.autoCalibration(false); // baseline calibration erstmal aus
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myMHZ19.autoCalibration(false); // "Automatic Baseline Calibration" (ABC) erstmal aus
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char myVersion[4];
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myMHZ19.getVersion(myVersion);
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Serial.print("\nMH-Z19b Firmware Version: ");
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@ -98,20 +112,12 @@ void setup() {
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Serial.print("ABC Status: "); myMHZ19.getABC() ? Serial.println("ON") : Serial.println("OFF");
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Serial.print("read EEPROM value: "); Serial.println(tocalibrateornot);
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switch(tocalibrateornot){
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case 23:
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Serial.println("startmodus aktuell: kalibrierungsmodus");
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break;
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case 42:
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Serial.println("startmodus aktuell: messmodus");
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break;
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}
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// Pre-Fill array of last measurements with -1
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// Liste der Messwerte mit "-1" befüllen ("-1" wird beinm Graph nicht gezeichnet)
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for (int x = 0; x <= 119; x = x + 1) {
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lastvals[x] = -1;
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}
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// Ab hier LED-Ring konfigurien
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pixels.begin();
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pixels.clear();
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for(int i=0; i<NUMPIXELS; i++) {
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@ -119,7 +125,7 @@ void setup() {
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pixels.show();
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}
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switchBootMode(tocalibrateornot); // beim naechsten boot im anderen modus starten
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switchBootMode(tocalibrateornot); // beim nächsten boot im anderen modus starten
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}
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int calc_vpos_for_co2(int co2val, int display_height) {
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@ -128,17 +134,18 @@ int calc_vpos_for_co2(int co2val, int display_height) {
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void set_led_color(int co2) {
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if (co2 < GREEN_CO2) {
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// Green
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// Grün
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pixels.
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for(int i=0; i<NUMPIXELS; i++) {
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pixels.setPixelColor(i, 30,0,0);
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}
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} else if (co2 < YELLOW_CO2) {
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// Yellow
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// Gelb
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for(int i=0; i<NUMPIXELS; i++) {
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pixels.setPixelColor(i, 40,40,0);
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}
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} else {
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// Red
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// Rot
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for(int i=0; i<NUMPIXELS; i++) {
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pixels.setPixelColor(i, 0,90,0);
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}
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@ -177,15 +184,15 @@ void calibrateCO2(){
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}
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void readco2(){
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if (millis() - getDataTimer >= INTERVAL) {
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// Get new CO² value.
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// Neuen CO2 Wert lesen
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int CO2 = myMHZ19.getCO2();
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// Shift entries in array back one position.
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// Alle Werte in der Messwertliste um eins verschieben
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for (int x = 1; x <= 119; x = x + 1) {
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lastvals[x - 1] = lastvals[x];
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}
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// Add new measurement at the end.
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// Aktuellen Messer am Ende einfügen
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lastvals[119] = CO2;
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// Clear display and redraw whole graph.
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// Display löschen und alles neu schreiben/zeichnen
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display.clear();
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for (int h = 1; h < 120; h = h + 1) {
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int curval = lastvals[h];
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@ -195,7 +202,7 @@ void readco2(){
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display.drawLine(h - 1, vpos_last, h, vpos);
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}
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}
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// Set LED color and print value on display
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// Farbe des LED-Rings setzen
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if (tocalibrateornot == 42) {set_led_color(CO2);}
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//display.setLogBuffer(1, 30);
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display.setFont(Cousine_Regular_54);
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@ -203,7 +210,7 @@ void readco2(){
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display.drawString(64 ,0 , String(CO2));
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//display.drawLogBuffer(0, 0);
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display.display();
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// Debug output
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// Ein wenig Debug-Ausgabe
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Serial.print("CO2 (ppm): ");
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Serial.print(CO2);
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Serial.print(" Background CO2: " + String(myMHZ19.getBackgroundCO2()));
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