*/ intMQ2=A0;//指定模拟端口A0 intval=0;//声明临时变量 intbuzzer=4; voidsetup() { pinMode(MQ2,INPUT); Serial.begin(9600);//设置串口波特率为9600 pinMode(buzzer,OUTPUT);//设置IO脚模式,OUTPUT为输出 } voidloop() { val=analogRead(MQ2);//读取A0口的电压值并赋值到val Serial.println(val);...
MQ2气体传感器内部结构 MQ2是一个加热器驱动的传感器。 因此，它覆盖着两层被称为“防爆网”的精细...
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void setup() { //put your setup code here, to run once: Serial.begin(9600); while(!Serial) { ;//waitforserial port to connect. NeededforLeonardo only } String lon_str="10845.55422"; String lat_str="3402.15704"; double lond=longitudeToOnenetFormat(lon_str); double latd=latitudeToOnenet...
[UNO] 基于Arduino和OneNet平台的MQ2监控装置 Arduinoonenet平台AC hbzjt2011 2022-1-27 20:18 4 9034 [UNO] 存储器IC富士通 MB85RS128BPNF-G-JNERE1 ADRSic litao411 2021-12-27 15:51 0 1186 [UNO] 随身携带的Arduino开发板 arduino开发板AC电子 baiff 2021-11-28 19:41 10 9829 2 [UNO...
arduino-mega2560-board mq2-gas-sensor Updated Jul 5, 2022 C++ ketrab2004-Arduino / old_music Star 0 Code Issues Pull requests Old version of object oriented music player object_music, image support is bad? music arduino music-player bad arduino-uno arduino-uno-board arduino-mega mega2560...
MQ2 gas sensor is an electronic sensor used for sensing the concentration of gases in the air, such as liquefied petroleum gas (LPG), propane, methane, hydrogen, alcohol, smoke, and carbon monoxide. MQ2 gas sensor is also known as a semiresistor. This sensor works on 5 V DC voltage and...
Smoke Detector (using the MQ2 sensor) Relay Switch (implemented as a timed relay, that turns off locally - i.e. no ST cloud command necessary to turn off) Button (both pushed and held events are supported) Switch + Color Control (RGB) - used for analog RGB LED's ...
Reduce the ESP32 Power Consumption in 3 Simple Steps MQ2 Gas Sensor Tutorial for Arduino, ESP8266 and ESP32 Fire Sensor Tutorial for Arduino, ESP8266 and ESP32 SD Card Tutorial for Arduino, ESP8266 and ESP32 I2S Sound Tutorial for ESP32 8...
We also have different air monitoring sensors for specific air such as detecting dust, and PM2.5, air quality, Carbon Dioxide, MQ2 & MQ3. Grove – Laser PM2.5 Sensor (HM3301) Grove – Dust Sensor(PPD42NS) Grove – Air quality sensor v1.3 ...