Hardware

Keyestudio_UNO

Keyestudio Uno

An Arduino Uno, slightly modified (it isn’t necessary). It is basically an Arduino Uno, with duplicated pins alongside 5V and GND for each one.

MiCS-4514

NO2 & CO Sensor MiCS-4514

High sensitivity NO2 & CO measuring sensor. Datasheet.

Ks0196 keyestudio PM2.5 Shield

Ks0196 keyestudio PM2.5 Shield

Dust sensor, able to measure particles greater than 2.5 microns in size.

DTH 11

DTH11 Sensor

DTH11 sensor, able to measure temperature and humidity.

ESP8266

Esp-8266 Wifi Module

WiFi module for communication between Arduino and ThingSpeak.

Assembly result

Here are some photos that we have taken of the sensor.