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We present a unified library for MQ sensors, this library allows to read MQ signals easily from Arduino, Genuino, ESP8266, ESP-32 boards whose references are MQ2, MQ3, MQ4, MQ5, MQ6, MQ7, MQ8, MQ9, MQ...

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These sensors are all made by HANWEI Electronics, Sparkfun etc. are just resellers, so I have updated incorrect manufacture entries in the description table.

Hello, can you please explain why the 10k resistor is needed and why for that exact place? Thanks!

Change the `_type` array size from 6 to 7 so that it can display sensor name's with 6 characters or more. # Description Please include a summary of the change...

# Description Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change....

Hi. Why you guys considered RS / R0 = 3.6 for MQ135 sensor?? Datasheet says constant value of 4.4. Check the following line, please: https://github.com/miguel5612/MQSensorsLib/blob/27465dfb992595bb5b6bc9c20659333a1bcf4758/examples/Calibration/Calibration.ino#L38

I'm using _MQUnifiedsensor_ library much like `examples/MQ-135-ALL/MQ-135-ALL.ino` shows. ``` MQ135.setA(605.18); MQ135.setB(-3.937); // Configure the equation to calculate CO concentration value float CO = MQ135.readSensor(); MQ135.setA(77.255); MQ135.setB(-3.18); //Configure the equation to...

bug
help wanted

**Describe the bug** A clear and concise description of what the bug is. Not so much a bug but a question ![image](https://github.com/miguel5612/MQSensorsLib/assets/5819349/f8433585-8e4f-4423-a482-909da42a18b9) In this of the ESP8266 example are you...

I think there is an error in the library source code (https://github.com/miguel5612/MQSensorsLib/blob/master/src/MQUnifiedsensor.cpp): The variable _VOLT_RESOLUTION in the equation below should be 5V, not _VOLT_RESOLUTION, which is 3.3volts in case of...

enhancement
help wanted
good first issue

Hello Miguel, I have gone through the MQ-135-CorrectionFactorDHT11 document, and there are a few parameters that are not entirely clear to me. I would like to use the correction factor...

enhancement
good first issue

![IMG_20231028_153549_edit_68616741962417](https://github.com/miguel5612/MQSensorsLib/assets/62125055/3379666c-d5f5-41eb-a90c-b321b2a7ee0a) Using the image sensor, is there a better way to obtain its RL intead of using the default 10k?