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