LoRa Based Smart City Air Quality Monitoring

DOWNLOAD ABSTRACT

AIM:

Design and Development of LoRa based smart city air quality monitoring.

PURPOSE:

In recent times “smart city” word is popular and government announces few smart cities around the country. Smart cities are smart in every aspect with advance technologies. People got more services in smart cities when comparing with non-smart cities. The basic feature of smart city is to providing good environment. For good environment, we have to read environmental parameters throughout the city. Environmental parameters data can be detect through some sensors and upload to cloud for further use. This data will be useful for predicting and analyzing future environmental status. Proposed project title is LoRa based smart city air quality monitoring using Arduino.

DESCRIPTION:

There are two sections in this project. One is transmitter and other one is receiver. At transmitter side – Arduino connected with LoRa (Sx1278) through SPI communication. DHT11 sensor, Smoke sensor (Mq2) and MIC sensor connected to Arduino digital pins. At receiver side – ESP32 nodemcu had connection with LoRa (Sx1278) through SPI port.

WORKING:

DHT11 sensor can read temperature and humidity values of environment. Mq2 sensor is used to read smoke pollution in air. MIC sensor is used to read noise pollution in air. All these sensors interfaced with Arduino and Arduino reads all sensors data and displaying on LCD. Also, Arduino sends sensors values to LoRa (sx1278). At receiver side LoRa (sx1278) receives sensors data and displaying on LCD display. Receiver side LoRa (sx1278) connected with ESP32 nodemcu. ESP32 nodemcu has inbuilt WIFI module that can send sensors data to IOT cloud server. LoRa receiver side section will act as LoRa gateway.

TECHNICAL SPECIFICATIONS:

HARDWARE:

Microcontrollers        :           Arduino Uno and ESP32 Nodemcu

Crystal                        :           16 MHz

LCD                            :           16X2 LCD

LoRa Module             :           SX1278

Temperature Sensor    :          DHT11

Humidity Sensor         :          DHT11

Smoke Sensor             :           MQ2

Sound Sensor              :           Mic

Power Source              :           12v 1 amp DC Adaptor, Solar panel and DC battery

SOFTWARE:

Arduino IDE

Proteus based circuit diagram

APPLICATIONS:

• Smart City Applications
• Sensors Data Logger Applications
• Weather Monitoring Applications

INTERFACES COVERD:

• We have covered LoRa module interface
• Sensors like DHT11,Smoke sensor, Sound sensor
• Arduino and ESP32 nodemcu