Details
MQ-7 sensor has high sensitivity to carbon mono oxide. It is low cost and suitable for various applications.
Using high-quality dual-panel design, with a power indicator and TTL signal output instructions; With a the DOUT switch signal (TTL) output, and AO analog signal output; TTL output valid signal is low level; (When the low level output signal lights, it can be connected directly to the microcontroller or relay module)
TTL output signal can be connected directly to a microcontroller IO port or connect to the relay module, potentiometer is used to adjust the output level transition threshold
FEATURES:
- Wide detecting scope
- Stable and long life
- Fast response and High sensitivity
- Analog and Digital Outputs
- Trigger Level configuration Potentiometer
MODULE ASPECTS:
- Size: 32mm X22mm X27mm
- Operating voltage: DC 5V
- Analog Output (AO): 0~5V analog output voltage
- Digital Outout (DO): 0V or 5V output (the higher the voltage the higher the concentration)
- Configuration: Through Potentiometer (adjusts the output level transition)
- Preheat Duration: 20s
PIN LAYOUT:
- VCC (+5V)
- GND (0V)
- DO (Digital Out)
- AO (Analog Out)
RELATED LINK:
- http://playground.arduino.cc/Main/MQGasSensors
PACKAGE INCLUDES:
- 1 x MQ-7 Gas Sensor Module
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Design and Developed by Zone Engineering & Technology (Pvt) Ltd.