98 lines
1.9 KiB
C++
98 lines
1.9 KiB
C++
// Sietse Jonker
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// 09/02/2024
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#include <Wire.h>
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#include <Adafruit_SH110X.h>
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#include <Adafruit_SGP30.h>
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#include <DHT.h>
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#define MICPIN 6
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#define DHTPIN 7
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#define SCL 9
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#define SDA 8
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#define DHTTYPE DHT11
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#define SCREEN_WIDTH 128
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#define SCREEN_HEIGHT 64
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#define i2c_adress 0x3c
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Adafruit_SH1106G display = Adafruit_SH1106G(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire);
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DHT dht(DHTPIN, DHTTYPE);
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Adafruit_SGP30 sgp;
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uint16_t TVOC_base, eCO2_base;
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int counter = 0;
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float temperature = 0;
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float humidity = 0;
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int eCO2 = 0;
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int TVOC = 0;
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bool noise = false;
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void resetValues() {
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TVOC_base, eCO2_base;
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counter = 0;
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temperature = 0;
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humidity = 0;
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eCO2 = 0;
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TVOC = 0;
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noise = false;
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}
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void displayData() {
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// clear display for new info
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display.clearDisplay();
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// set custom text properties
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display.setTextSize(2);
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display.setTextColor(SH110X_WHITE);
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display.setCursor(0, 0);
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// display info on oled screen
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display.println((String) "Temp: " + int(temperature) + "C" + '\n'
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+ "Humi: " + int(humidity) + "%" + '\n'
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+ "eCO2: " + int(sgp.eCO2) + '\n'
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+ "TVOC: " + int(sgp.TVOC));
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display.display();
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}
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void setup() {
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Serial.begin(115200);
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// tell display what settings to use
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display.begin(i2c_adress, true);
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display.clearDisplay();
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// tell sensors to start reading
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dht.begin();
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sgp.begin();
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pinMode(MICPIN, INPUT);
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pinMode(DHTPIN, INPUT);
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resetValues();
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}
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void loop() {
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// if sensor doesnt work print in serialmonitor
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if (!sgp.IAQmeasure()) {
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Serial.println("SGP30: BAD");
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return;
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} else {
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Serial.println("SGP30: OK");
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}
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// read dht11 sensor
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temperature = float(dht.readTemperature());
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humidity = float(dht.readHumidity());
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// display sensordata on oled screen
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displayData();
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// get new baseline every 30 seconds
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if (counter == 30) {
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sgp.getIAQBaseline(&eCO2_base, &TVOC_base);
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}
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delay(1000);
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counter++;
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} |