.png)
- Out-of-Stock
Pololu 1480 - Flammable Gas Smoke Sensor MQ-2
ID: 196145
Flammable Gas & Smoke Sensor MQ-2
Flammable Gas & Smoke Sensor MQ-2
This semiconductor gas sensor detects the presence of combustible gas and smoke at concentrations from 300 to 10,000 ppm. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.
 |
Overview
This flammable gas and smoke sensor detects the concentrations of combustible gas in the air and ouputs its reading as an analog voltage. The sensor can measure concentrations of flammable gas of 300 to 10,000 ppm.The sensor can operate at temperatures from -20 to 50°C and consumes less than 150 mA at 5 V. Please read the MQ2 datasheet (184k pdf) for more information about the sensor.
 |
| Gas sensor with metal case bottom view. |
|---|
Connections
Connecting five volts across the heating (H) pins keeps the sensor hot enough to function correctly. Connecting five volts at either the A or B pins causes the sensor to emit an analog voltage on the other pins. A resistive load between the output pins and ground sets the sensitivity of the detector. Please note that the picture in the datasheet for the top configuration is wrong. Both configurations have the same pinout consistent with the bottom configuration.The resistive load should be calibrated for your particular application using the equations in the datasheet, but a good starting value for the resistor is 20 kΩ.
We offer two breakout boards that make it easier to interface with these sensors: a Pololu carrier board and a SparkFun carrier board. The Pololu version is shown below.
|
People often buy this product together with:
 |
Pololu MQ Gas Sensor Carrier |
 |
Carbon Monoxide Gas Sensor MQ-7 |
 |
Alcohol Gas Sensor MQ-3 |
196145
Manufacturer
- BTC Korporacja sp. z o. o.
- Ludwinowo Zegrzyńskie 52G
- 05-140 Ludwinowo Zegrzyńskie
- Poland
- [email protected]
- 22 767 36 20
Responsible person
- BTC Korporacja sp. z o. o.
- Ludwinowo Zegrzyńskie 52G
- 05-140 Ludwinowo Zegrzyńskie
- Poland
- [email protected]
- 22 767 36 20
Other products in the same category (16)
Camera module 18 Mpx with AR1820HS sensor working with Raspberry Pi. It offers a video resolution of up to 4912x3684 pixels at 15 fps. ArduCAM B0164
Retired
No product available!
Camera module based on the OV13850 CMOS matrix with a resolution of 4224x3136 px (13 MPx). Designed for use with ArduCAM USB Shield. ArduCAM B0129
Retired
No product available!
ArduCAM OV9281 1MP Global Shutter USB Camera Evaluation Kit - Evaluation Kit with 1MP OV9281 166°...
A set with a camera with a resolution of 1 MPx with an OV9281 sensor, a USB 3.0 adapter and a cable. ArduCAM EK024
Retired
No product available!
A set with a camera with a resolution of 1 MPx with an OV9281 sensor, a USB 2.0 adapter and a cable. ArduCAM EK023
Retired
No product available!
Module with USB 2.0 interface dedicated to ArduCAM cameras. Supports sensors with MIPI interface. Has a built-in 16 MB hardware frame buffer. ArduCAM B0175
Retired
No product available!
Micro analog servo with plastic gear. It has a range of motion of 90°. GH-S37A
Retired
No product available!
GSM/GPRS + GPS module based on the RDA8955 chip. It integrates protocol stacks such as GSM/GPRS and supports the basic functions of voice calls, SMS and GPS data transmission. DFRobot TEL0134
Retired
No product available!
Aluminum case for minicomputer Raspberry Pi 4 model B, black color
Retired
No product available!
Module with 7-color ACeP e-Paper display, 5.65" diagonal and 600x448 px resolution. Communication via SPI interface. Waveshare Pico-ePaper-5.65
Retired
No product available!
HAT module with RTC DS3231SN clock and MAX705 reset system designed for Raspberry Pi and Jetson Nano. The board has a CR1220 battery socket and a C-type USB connector. Waveshare RTC WatchDog HAT
Retired
No product available!
The expansion module is designed to work with a portable computer built into the Raspberry Pi 400 keyboard. The board has two 40-pin connectors placed in a vertical position and a connector for RPI 400 at an angle of 45 °. Waveshare PI400-GPIO-ADAPTER-C
Retired
No product available!
The power supply module with the RTC DS3231SN clock is designed for the Raspberry Pi. It allows you to power minicomputer with voltage up to 28 V and create scripts for the power-on sequence. Pimoroni WITTY_PI_3_R2
Retired
No product available!
Module of the 8-channel I2C expander based on the TCA9548A system. It enables communication with many I2C devices that have the same address. Pimoroni 8086-006
Retired
No product available!
Mini board with RP2040 microcontroller equipped with two ARM Cortex-M0+ 133 MHz cores, 264 kB RAM. The board also has 8 MB of QSPI flash memory. The circuit can be programmed in C/C++, CircuitPython or MicroPython. PIM577
Retired
No product available!
Module with a black and white e-Paper display with a diagonal of 2.13" and a resolution of 250x122 px. SPI interface. Pimoroni PIM368
Retired
No product available!
Metal case with fan for Raspberry Pi 4 model B in black
Retired
No product available!
Flammable Gas & Smoke Sensor MQ-2