Hardware Components
- Arduino MKR Wifi 1010
- Temperature sensor (ADT7410)
- Humidity sensor (sunfounder Humiture Sensor)
- CO2 sensor (GY-SGP40)
- Noise level sensor (GY-MAX4466)
Circuit Plan
Temperature & CO2 Sensor:
| Arduino | Temperature |
|---|---|
| VIN | VCC |
| GND | GND |
| SCL | SCL |
| SDA | SDA |
Noise Level Sensor:
| Arduino | Temperature |
|---|---|
| A0 | OUT |
| GND | GND |
| VCC | VCC |
Noise Level Sensor:
| Arduino | Temperature |
|---|---|
| D13 | SIG |
| VCC | VCC |
| GND | GND |
Output format
Each sensor has a different unit of measurement. Therefore different datatypes are needed.
1. Temperature
The temperature is measured in celcius (°C), the values are floats and can be negative.
Unit: °C
2. Humidity Sensor
The Humidity sensor returns values ranging from 0% to 100%, anything other is an invalid value.
Unit: relative Humidity in %
3. CO2 Sensor
The CO2 sensor is dependant on temperature and humidity. These values are needed to calculate the VOC-Index.
The VOC-Index is ranging value from 0 to 500, any other value is invalid.
Unit: VOC-Index
4. Noise Level
The Noise sensor returns a analog value ranging from 0 to 1023. This value needs to be used to calculate a db value.
Unit: integer
Required Libraries
- Platform.ini holds all used Libraries