The blank PCB board is designed for mounting and connecting various MQ gas sensors (e.g., MQ2, MQ3, MQ4, etc.) for gas detection applications. It provides a convenient platform for integrating the sensors into custom projects.
The board is compatible with multiple MQ series sensors, including MQ2, MQ3, MQ4, MQ5, MQ6, MQ7, MQ8, MQ9, and MQ135. Each sensor detects different gases, such as methane, carbon monoxide, alcohol, and others.
Connect the sensor’s output pin to the corresponding input pin on the PCB. You will also need to connect the power (VCC) and ground (GND) pins according to the sensor’s requirements.
Most MQ sensors operate within a range of 5V. Some sensors may have different requirements, so it's important to check the datasheet for each specific sensor.
Yes, the PCB board supports both analog and digital output sensors. It provides connections for the analog output from the sensor, which can be read by an ADC (Analog-to-Digital Converter) if needed.
Calibration procedures vary by sensor but generally involve exposing the sensor to known concentrations of the target gas and adjusting the calibration settings or circuit to match the expected readings.
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