forked from github/ebk_co2ampel
what am i doing here?
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038120d3de
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ddb1377175
2 changed files with 110 additions and 60 deletions
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@ -17,4 +17,6 @@ lib_deps =
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adafruit/Adafruit NeoPixel@^1.6.0
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wifwaf/MH-Z19@^1.5.2
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squix78/ESP8266_SSD1306@^4.1.0
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monitor_speed = 9600
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yiannisbourkelis/Uptime Library @ ^1.0.0
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monitor_port = /dev/ttyUSB0
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monitor_speed = 115200
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@ -4,6 +4,7 @@
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#include <Adafruit_NeoPixel.h>
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#include "fonts-custom.h"
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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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#define GREEN_CO2 800
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@ -11,6 +12,7 @@
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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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// Pins for MH-Z19
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#define RX_PIN 16
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@ -34,25 +36,45 @@ SSD1306Wire display(0x3c, SDA_PIN, SCL_PIN);
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Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, LED_PIN, NEO_RGB + NEO_KHZ800);
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unsigned long getDataTimer = 0;
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unsigned long getDataTimer1 = 0;
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int lastvals[120];
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int dheight;
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String ampelversion = "0.1";
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int safezone = 1;
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int tocalibrateornot;
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int firstloop = 1;
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int initloop = 1;
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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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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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break;
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case 69:
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Serial.println("EEPROM lesen war nicht moeglich!");
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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.println(bm);
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break;
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}
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}
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void setup() {
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Serial.begin(9600);
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Serial.println("boot...");
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Serial.begin(115200);
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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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preferences.putUInt("cal", 23); // wir sind gerade gestartet
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Serial.println(ampelversion);
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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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pixels.clear();
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display.init();
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display.setFont(Cousine_Regular_54);
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@ -64,9 +86,39 @@ void setup() {
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display.drawString(64 ,0 , String(ampelversion));
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display.display();
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dheight = display.getHeight();
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Serial.println("boot...");
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Serial.println(ampelversion);
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char myVersion[4];
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myMHZ19.getVersion(myVersion);
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Serial.print("\nFirmware Version: ");
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for(byte i = 0; i < 4; i++)
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{
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Serial.print(myVersion[i]);
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if(i == 1)
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Serial.print(".");
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}
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Serial.println("");
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Serial.print("Range: ");
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Serial.println(myMHZ19.getRange());
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Serial.print("Background CO2: ");
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Serial.println(myMHZ19.getBackgroundCO2());
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Serial.print("Temperature Cal: ");
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Serial.println(myMHZ19.getTempAdjustment());
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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: ");
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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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// Fill array of last measurements with -1
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for (int x = 0; x <= 119; x = x + 1) {
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lastvals[x] = -1;
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@ -77,6 +129,8 @@ void setup() {
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pixels.setPixelColor(i, 0,0,50);
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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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}
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int calc_vpos_for_co2(int co2val, int display_height) {
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@ -114,6 +168,24 @@ void rainbow(int wait) {
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delay(wait);
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}
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}
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void calibrateCO2(){
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display.clear();
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display.drawString(64, 0, "CAL!");
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display.display();
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Serial.println("brace yourself, calibration starting! things either be better or all fucked up beyond this point...");
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myMHZ19.setRange(5000);
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delay(500);
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myMHZ19.calibrateZero();
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delay(500);
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myMHZ19.autoCalibration(false);
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delay(500);
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display.clear();
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display.drawString(64, 0, "DONE");
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display.display();
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preferences.putUInt("cal", 42);
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display.clear();
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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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@ -136,19 +208,19 @@ void readco2(){
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}
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// Set LED color and print value on display
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set_led_color(CO2);
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display.setLogBuffer(1, 30);
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//display.setLogBuffer(1, 30);
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display.setFont(Cousine_Regular_54);
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display.setTextAlignment(TEXT_ALIGN_CENTER);
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display.drawString(64 ,0 , String(CO2));
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display.drawLogBuffer(0, 0);
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//display.drawLogBuffer(0, 0);
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display.display();
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// Debug output
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Serial.print("CO2 (ppm): ");
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Serial.print(CO2);
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Serial.print(" Background CO2: ");
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Serial.print(myMHZ19.getBackgroundCO2());
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Serial.print(" uptime (seconds): ");
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Serial.println(millis()/1000);
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Serial.print(" Background CO2: " + String(myMHZ19.getBackgroundCO2()));
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//Serial.print(myMHZ19.getBackgroundCO2());
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Serial.println(" uptime: " + uptime_formatter::getUptime());
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getDataTimer = millis();
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}
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}
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@ -156,66 +228,42 @@ void readco2(){
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void loop() {
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if (safezone == 1){
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if (initloop == 1) {
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if (millis() > 10000) {
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Serial.println("=== safe zone ===");
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switchBootMode(23);
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// preferences.putUInt("cal", 42); // wir haben die safe zone erreicht, beim naechsten boot nicht kalibrieren!
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safezone = 0;
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initloop = 0;
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}
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}
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if (safezone == 0){
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if (tocalibrateornot == 23){
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if (millis() < 180000){
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if (millis() - getDataTimer1 < CALINTERVAL) {
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rainbow(10);
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display.clear();
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display.setTextAlignment(TEXT_ALIGN_CENTER);
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display.drawString(64, 0, String(180 - millis()/1000));
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display.display();
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}
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else if (millis() >= 180000){
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display.drawString(64, 0, "CAL!");
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Serial.println("brace yourself, calibration starting! things either be better or all fucked up beyond this point...");
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myMHZ19.setRange(5000);
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delay(500);
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myMHZ19.calibrateZero();
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delay(500);
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myMHZ19.autoCalibration(false);
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delay(500);
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display.clear();
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display.drawString(64, 0, "DONE");
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display.display();
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preferences.putUInt("cal", 42);
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char myVersion[4];
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myMHZ19.getVersion(myVersion);
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Serial.print("\nFirmware Version: ");
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for(byte i = 0; i < 4; i++)
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{
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Serial.print(myVersion[i]);
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if(i == 1)
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Serial.print(".");
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}
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Serial.println("");
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Serial.print("Range: ");
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Serial.println(myMHZ19.getRange());
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Serial.print("Background CO2: ");
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Serial.println(myMHZ19.getBackgroundCO2());
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Serial.print("Temperature Cal: ");
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Serial.println(myMHZ19.getTempAdjustment());
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Serial.println("calibration done");
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Serial.print("ABC Status: "); myMHZ19.getABC() ? Serial.println("ON") : Serial.println("OFF");
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display.clear();
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safezone = 0;
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else if (millis() - getDataTimer1 >= CALINTERVAL) {
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calibrateCO2();
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getDataTimer1 = millis();
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}
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}
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else if (tocalibrateornot ==42){
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if(firstloop==1){
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if(initloop==1){
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Serial.println("fake news, nobody has the intention to do calibration....");
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firstloop=0;
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initloop=0;
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}
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if (millis() > 10000) {
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Serial.println(" safe zone, sensor stayed up long enough");
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preferences.putUInt("cal", 42); // wir haben die safe zone erreicht, beim naechsten boot nicht kalibrieren!
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safezone = 0;
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}
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}
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}
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else if (safezone == 0){
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readco2();
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}
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}
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