将模块上的D0输出引脚连接到Arduino上的数字引脚8,将模块上的A0输出引脚连接到Arduino上的模拟引脚 A0。 Arduino代码 代码非常简单,基本上只读取A0引脚上的模拟电压。当检测到烟雾时,它还会在串行监视器上打印一条消息。 #defineMQ2pin (0)floatsensorValue;//variable to store sensor valuevoidsetup() { ...
草图从定义MQ2气体传感器的模拟引脚连接到的Arduino引脚开始。还定义了一个名为sensorValue的变量来存储传感器值。 #define MQ2pin (0)floatsensorValue;//variable to store sensor value 在设置功能中:我们初始化与PC的串行通信,并等待20秒以允许传感器预热。 Serial.begin(9600);// sets the serial port to 9600...
Serial.println(sensorValue);delay(2000); // wait 2s for next reading } 复制代码 运行草图时，您...
[] = "446r8LYJMJnXYrYqyEItR31Eh0jlH2m2"; //Enter Authentication code sent by Blynk char ssid[] = "DESKTOP"; //Enter WIFI Name char pass[] = "asdfghjkl"; //Enter WIFI Password SimpleTimer timer; int mq2 = A0; // smoke sensor is connected with the analog pin A0 int data = 0...
unsigned int sensorValue = 0; void setup() { pinMode(Sensor_DO, INPUT); Serial.begin(9600); } void loop() { sensorValue = analogRead(Sensor_AO); Serial.print("Sensor AD Value = "); Serial.println(sensorValue); if (digitalRead(Sensor_DO) == LOW) { Serial.println("Alarm!"); } ...
void loop(){intcurLight=analogRead(PinLightsensor);//读取光传感器当前值intoutVal=map(curLight,MinLight,MaxLight,0,255);//把光传感器的值映射到0-255(PWM输出范围),需要注意的是Map函数不会强制结果在0-255范围内(当curLight超出map函数的第二三两参数的范围时出现超出0-255的情况)。
SeeeduinoGrove-Gas_Sensor-MQ2 5V Red GND Black Not Conencted White A0 Yellow Software there are some examples Please copy and paste code below to a new Arduino sketch, and upload them respectively, If you do not know how to upload the code, please check how to upload code....
(选配 )接线部分烟雾检测接线ArduinoMQ Sensor5VVCCGNDGNDA0A0D03烟雾报警器接线传感器ArduinoMQ Sensor5VVCCGNDGNDA0A0D laisvl 202201-06 06:17:20 MQ2烟感检测烟雾后ADC数值上升 但为啥为啥一直上升 没烟了也在上升? 我最近画块mq2的烟感板子 现在用来检测烟雾时adc口采集的电压数值会明显上升 但是他...
This is an open source alarm device.We need hardware:1\SolidDigi MQ2 Smoke Detector Shield for \WiFi Shield WiShield V2.0 for ://www.soliddepot.com/wifi-shield-wishield-v20-for-arduino-p-106.html When the concentration of toxic gas is high, MQ2 sends em
sensor Arduino setup or a pulse sensor with Arduino, this board is designed to provide a stable and reliable interface for your sensors. **Ease of Use and Customization** The carrier board's user-friendly design ensures that even those new to Arduino can quickly integrate it into their ...