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Generic 8A11 MQ-9 Carbon Monoxide Gas Sensor Module features
Other Features
Air quality index reading, threshold sensing, alternating heating element voltage (1.4V/5V), 20s preheat duration, power and output LED indicators, fixed screw holes, suitable for smoke detectors, IoT environment monitoring, smart agriculture, industrial gas detectors, and combustible gas monitoring devices
Instructions for Use/Warnings
This sensor works in both digital and analog modes. For analog output (AO), a conversion is required to get the air quality index reading. For digital output (DO), adjust the potentiometer to set sensitivity. The sensor requires a 20-second preheat duration. The gas sensor heating element alternates between 1.4V and 5V. For calibration, upload the first provided code after preheating in clean air and wait approximately 15 minutes for R0 to stabilize. Once R0 is determined, insert this value into the second code. Then, upload the second code to monitor gas concentration; an LED will turn on if CO or other specified gases are detected. Refer to the pinout and wiring diagram for correct connections (VCC to 5V, GND to GND, DO to digital IO, AO to analog input).
Blue PCB Electronics
7.8
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- A maximum of 5 units of this product can be ordered. Trendyol reserves the right to cancel orders over 5 units.
- Barcode No: 2900000007956
Generic 8A11 MQ-9 Carbon Monoxide Gas Sensor Module features
Other Features
Air quality index reading, threshold sensing, alternating heating element voltage (1.4V/5V), 20s preheat duration, power and output LED indicators, fixed screw holes, suitable for smoke detectors, IoT environment monitoring, smart agriculture, industrial gas detectors, and combustible gas monitoring devices
Instructions for Use/Warnings
This sensor works in both digital and analog modes. For analog output (AO), a conversion is required to get the air quality index reading. For digital output (DO), adjust the potentiometer to set sensitivity. The sensor requires a 20-second preheat duration. The gas sensor heating element alternates between 1.4V and 5V. For calibration, upload the first provided code after preheating in clean air and wait approximately 15 minutes for R0 to stabilize. Once R0 is determined, insert this value into the second code. Then, upload the second code to monitor gas concentration; an LED will turn on if CO or other specified gases are detected. Refer to the pinout and wiring diagram for correct connections (VCC to 5V, GND to GND, DO to digital IO, AO to analog input).
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