Difference between revisions of "Sensor-Air Quality"

Microduino-Air-quality

The product number of Sensor-Air is: MSDT61 Sensor-Air is an air quality sensor module.

Air quality sensor shows great sensitivity towards alcohol, cigarettes, ammonia, sulfide and other pollution sources.

Introduction of Sensor Pins

Pins of the sensor: PIN1: GND PIN2: VCC General signal pins: PIN3(IO1): digital/analog signal PIN4(IO2): NC(null) Special signal pins: If it is IIC: IO1/IO2 are respectively SDA/SCL. If it is soft serial port: IO1/IO2 are respectively tx/rx.

Special to Sensor-Air Quality sensor pins PIN1: GND PIN2: VCC PIN3(IO1): Analog signal read PIN4(IO2): NC Microduino sensor can communicate with core module through the connection with Microduino-Module Sensor Hub.

Features

• Show great sensitivity towards VOCS and odorous gas such as ammonia, alcohol, hydrogen sulfide, toluene and hydrogen.
• Low consumption
• Sensitive for air pollution.
• long product life and low price
• Easy to use

Specification

• Electrical specification
  • Output: 0~5V analog signal
  • Operation voltage: 3.0V~5.5V
• Tech parameters
  • Measurement range: 1-100ppm
  • Sensitivity: 0.15-0.45ppm
• Size
  • Size of the sensor: 5mm*5mm
  • Size of the board: 20mm*10mm
  • 1.27mm-pitch 4Pin interface;
• Connection method
  • Pin description: GND, VCC, signal output and NC(empty).

Note: Since the input signal is simulated, it needs analog interface to detect (A0-A7), which can be connected to the pins(A6/A7,A2/A3 and A0/A1) of the Sensorhub.

Document

• Schematic diagram: File:Microduino AirQuanlity.Zip

Development

Preparation

• Make sure you build Microduino IDE or refer to: Microduino Getting started
• Core selection
  • 1. Adopt Microduino-CoreUSB or mCookie-CoreUSB as the core.
  • 2. Adopt Microduino-Core or Microduino-Core+ as the core plus Microduino-USBTTL as the program download module.

Program

• Open " AnalogInput " in the libraries.

• int sensorPin = A0; Define the analog A0 as the input pin.
• sensorValue = analogRead(sensorPin); Read values of the pin.

Hardware Buildup

• Stack all modules together and then connect the air quality sensor to the A0 slot of Microduino-Sensorhub with the wire.

For reference: Microduino-Sensorhub

For reference: mCookie-Hub

• Connect the core, Sensorhub and the Microduino-Air to a computer with a USB cable.
• Select the right board and COM port, compile and download. You can refer to AVR Core：Getting started

• Select the right port number from Tools→Serial Port in Arduino IDE after compiling, then download the program.
• Open the serial monitor after download. The values displayed on the serial monitor reflect the current air quality.

Application

Air cleaner, air conditioner and fresh air detector.

Project

• Weather Station

Purchase

History

Pictures

• Front

• Back