Arduino MQ135气体感应器 一、接线 MQ135有4个引脚,分别为VCC、GND、A0、D0,这里只需要使用到VCC、GND、A0.以下图是esp8266接线图。由于测量气体值PPM时,跟空气的温湿度是相关的。所以我们这里加了一个DHT22。DHT22传送门 VCC->3V GND->G A0->A0 二、MQ135库 &... 查看原文 用wemos连接mq135在手机上...
单片机型号:Arduino Nano 通信协议: socket 主要功能:Arduino Nano 单片机 采集 温湿度(DHT11传感器) , 采集空气污染质量值PPM (MQ135传感器) ,如果 PPM 值大于1000 ,即空气被污染程度较大!触发蜂鸣器报警!同时报警灯打开,红灯亮! 通过WIFI (esp8266 01S模块) 将数据以JSON数据格式发送到安卓手机APP上显示出来。
ArduinoMQ135气体感应器一、接线MQ135有4个引脚,分别为VCC、GND、A0、D0,这里只需要使用到VCC、GND、A0.以下图是esp8266接线图。由于测量气体值PPM时,跟空气的温湿度是相关的。所以我们这里加了一个DHT22。DHT22传送门 VCC->3VGND->GA0->A0二、MQ135库 下载地址:https://github.com ...
arduino UNO/MEGA/NANO #define RatioMQ135CleanAir 3.6//RS/ R0 = 3.6 ppm double CO2 = (0); MQUnifiedsensorMQ135(placa, VoltageResolution, ADC_Bit_Resolution, pin, type); void setup() { Serial.begin(9600; if(Serial Serialprintln("Serialis open"); WiFi.beginssid, password...
单片机型号:Arduino Nano 通信协议: socket 主要功能:Arduino Nano 单片机 采集 温湿度(DHT11传感器) , 采集空气污染质量值PPM (MQ135传感器) ,如果 PPM 值大于1000 ,即空气被污染程度较大!触发蜂鸣器报警!同时报警灯打开,红灯亮! 通过WIFI (esp8266 01S模块) 将数据以JSON数据格式发送到安卓手机APP上显示出来。
Code Issues Pull requests 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, MQ131, MQ135, MQ136, MQ303A, MQ309A. arduino ...
_H #define MQ135_H #if ARDUINO >= 100 #include "Arduino.h" #else #include "WProgram.h" #endif /// The load resistance on the board #define RLOAD 10.0 /// Calibration resistance at atmospheric CO2 level #define RZERO 76.63 /// Parameters for calculating ppm of CO2 from sensor ...
README Code of conduct MIT license MQSensorsLib 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, MQ131, MQ135, MQ303A, MQ309...
This library is also available in the Arduino IDE, seeArduino Library List. Datasheet Can be foundhere. Application This type of sensor is used in air quality control equipments for buildings/offices and is suitable for detecting of NH3, NOx, alcohol, Benzene, smoke, CO2, etc. ...
Arduino MQ-7 / MQ-309A ** Note **issue: MQ-7 and MQ-309 needs two different voltages for heater, they can be supplied by PWM and DC Signal controlled by your controller, another option is to use two different power sources, you should use the best option for you, next i will show...