MQ-2 Gas Sensor Brick, AU $3.90 – Picture 0

MQ-2 Gas Sensor Brick, AU $3.90 – Picture 1

MQ-2 Gas Sensor Brick, AU $3.90 – Picture 2

Mq-2 Gas Sensor Brick

AU $3.90

Sydney, Australia
Jun 9th

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Overview MQ-2 Gas sensor brick to detect hydrogen, isobutane, liquefied petroleum gas, methane, carbon monoxide, alcohol, smoke, propane and other harmful gases. DESCRIPTION What is an electronic brick? An electronic brick is an electronic module which can be assembled like Lego bricks simply by plugging in and pulling out. Compared to traditional universal boards and circuit modules assembled with various electronic components, electronic brick has standardized interfaces, plug and play, simplifying construction of prototype circuit on one’s own. There are many types of electronic bricks, and we provide more than twenty types with different functions including buttons, sensors, Bluetooth modules, etc, whose functions cover from sensor to motor drive, from Ethernet to wireless communication via Bluetooth, and so on. We will continue to add more types to meet the various needs of different projects. The electronic brick of gas sensor can be used in fire protection systems to detect hydrogen, isobutane, liquefied petroleum gas, methane, carbon monoxide, alcohol, smoke, propane and other harmful gases. Features 1. Plug and play, easy to use. Compatible with the mainstream 2.54 interfaces and 4-Pin Grove interfaces in the market. 2. With use of M4 standard fixed holes, compatible with M4-standard kits such as Lego and Makeblock. Specifications PCB size 33.0mm X 14.0mm X 1.6mm Working voltage 5V DC Operating voltage 5V DC Compatible interfaces 2.54 3-pin interface and 4-pin Grove interface(1) Note 1: S for analog output port, V and G for voltage at the common collector and ground respectively Electrical characteristics Parameter Min. Typical Max. Unit Working voltage 4.5 5 5.5 VDC Analog output voltage (VCC=5V) 0 - 5 V Working current (VCC=5V) - 122 - mA The sensitive characteristics of MQ-2 to various gases DEMO Connect S port of electronic brick of gas sensor to A0 port of Arduino board, and we will use the following program to read the analog value. When the analog value exceeds the threshold, LED lamp will flash. const int ledPin = 13; // the number of the LED pin const int thresholdvalue=400; //The threshold to turn the led on void setup() { pinMode(ledPin, OUTPUT); } void loop() { int sensorValue = analogRead(A0); //use A0 to read the electrical signal if(sensorValue>thresholdvalue) digitalWrite(ledPin,HIGH); //if the value read from A0 is larger than 400,then light the LED delay(200); digitalWrite(ledPin,LOW); } Revision record Version Description Date Written by v1.0 Initial edition 12th, April, 2013 Stan Lee Specification Brick Type Sensor Brick Brick Interface 3PIN Brick Power Supply 5V Board Size 33 x 14 x 1.6mm LED Color No Weight 25.00g Model IM120710024 Download Schematic SCH_IM120710024 Datasheet DS_IM120710024 Demo Code DEMO_IM120710024

Condition:	New	Brand	IteadStudio
Model	IM120710024