粘贴板 编写程序实现: 获取温度,当温度超过26摄氏度后,蜂鸣 器报警,同时红色LED灯闪烁
时间: 2024-10-08 22:05:37 浏览: 25
要实现这个功能,你需要一个硬件设备,比如包含一个温度传感器(例如DS18B20)、一个蜂鸣器和一个红色LED的电路,以及一个编程平台,如Arduino或Raspberry Pi。这里提供一个基本的Arduino C++示例代码,假设你已经将温度传感器连接到数字口和蜂鸣器及LED连接了对应的引脚:
```cpp
#include <OneWire.h> // For OneWire library (if using DS18B20)
#include <DallasTemperature.h> // For DallasTemperature library
#include <PinChangeInt.h> // For LED flashing on pin change
// Replace these pins with your actual hardware connections
const int tempSensorPin = D4; // DS18B20 data line
const int ledPin = 9; // Red LED
const int buzzerPin = 10; // Buzzer
DallasTemperature ds; // Create a DallasTemperature object
PinChangeInterrupt ledInt(ledPin); // Create an interrupt for LED
void setup() {
Serial.begin(9600);
ds.begin(); // Initialize the OneWire bus
pinMode(buzzerPin, OUTPUT); // Set buzzer as output
}
void loop() {
float temperature;
// Read temperature from DS18B20
ds.requestTemperatures();
temperature = ds.getTempCByIndex(0); // Assuming you have only one sensor
// Check if temperature exceeds 26°C
if (temperature > 26) {
digitalWrite(buzzerPin, HIGH); // Turn on buzzer
ledInt.attach ledPin; // Start flashing LED
delay(500); // Short delay before checking again
digitalWrite(buzzerPin, LOW); // Turn off buzzer
ledInt.detach ledPin; // Stop flashing LED
}
// Print temperature for debugging
Serial.print("Temperature: ");
Serial.println(temperature, 1);
delay(1000); // Sleep for a second before checking again
}
```
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