DS18B20

IC DS18B20

ไอซี DS18B20

ไอซีวัดอุณหภูมิ

โค๊ดตัวอย่าง

1. #include <OneWire.h>

2. #include <DallasTemperature.h>
3.  
4. // Define the pin connected to the DS18B20 sensor
5. #define ONE_WIRE_BUS 2
6.  
7. // Setup a oneWire instance to communicate with any OneWire devices
8. OneWire oneWire(ONE_WIRE_BUS);
9.  
10. // Pass the oneWire reference to DallasTemperature library
11. DallasTemperature sensors(&oneWire);
12.  
13. void setup() {
14. // Start serial communication
15. Serial.begin(9600);
16.  
17. // Initialize the DS18B20 sensor
18. sensors.begin();
19. }
20.  
21. void loop() {
22. // Call sensors.requestTemperatures() to issue a global temperature
23. // request to all connected devices on the bus
24. sensors.requestTemperatures();
25.  
26. // Read the temperature from the DS18B20 sensor
27. float temperatureC = sensors.getTempCByIndex(0);
28.  
29. // Print the temperature to the serial monitor
30. Serial.print("Temperature: ");
31. Serial.print(temperatureC);
32. Serial.println("°C");
33.  
34. // Wait for a second before taking the next temperature reading
35. delay(1000);
36. }
37.  

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