Ks0023 keyestudio 18B20 Temperature Sensor: Difference between revisions

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<br>
==18B20 Temperature Sensor==
==18B20 Temperature Sensor==
<br>[[File:Ks0023.png|500px|frameless|thumb]]<br>
<br>[[File:Ks0023.png|500px|frameless|thumb]]<br>


<br>
==Introduction==
==Introduction==
DS18B20 is a digital temperature sensor. It can be used for quantify environmental temperature testing. The temperature range is from -55 to +125 ℃, inherent temperature resolution 0.5 ℃. It also support multi-point mesh networking. Three DS18B20 can be deployed on three lines to achieve multi-point temperature measurement. It has a 9-12 bit serial output.
DS18B20 is a digital temperature sensor. It can be used to quantify environmental temperature testing. <br>
The temperature range is -55 ~ +125 ℃, inherent temperature resolution 0.5 ℃. It also support multi-point mesh networking. <br>
The DS18B20 can be deployed to achieve multi-point temperature measurement. It has a 9-12 bit serial output. 


<br>
==Specification==
==Specification==
* Supply Voltage: 3.3V to 5V
* Supply Voltage: 3.3V to 5V
* Temperature range: -55 °C ~ +125 °C
* Temperature range: -55 °C to +125 °C
* Interface: Digital
* Interface: Digital
* Size: 30*20mm
* Weight: 3g


<br>
==Connection Diagram ==
==Connection Diagram ==
<br>[[File:Ks0023-.png|600px|frameless|thumb]]<br>


<br>[[File:ks0023-2.png|500px|frameless|thumb]]<br>  
<br>


==Sample Code ==
==Sample Code ==


'''OneWire Library Download:''' http://www.pjrc.com/teensy/arduino_libraries/OneWire.zip
'''OneWire Library Download:''' http://www.pjrc.com/teensy/arduino_libraries/OneWire.zip
<pre>
<pre>
#include <OneWire.h>
#include <OneWire.h>
int DS18S20_Pin = 2; //DS18S20 Signal pin on digital pin 2
 int DS18S20_Pin = 2; //DS18S20 Signal pin on digital pin 2
//Temperature chip i/o
 //Temperature chip i/o
OneWire ds(DS18S20_Pin); // on digital pin 2
OneWire ds(DS18S20_Pin);  // on digital pin 2
void setup(void) {
 void setup(void) {
  Serial.begin(9600);
  Serial.begin(9600);
}
}
void loop(void) {
 void loop(void) {
  float temperature = getTemp();
  float temperature = getTemp();
  Serial.println(temperature);
  Serial.println(temperature);
 
   
  delay(100); //to slow down the output so it is easier to read
  delay(100); //to slow down the output so it is easier to read 
 
}
}
float getTemp(){
float getTemp(){
  //returns the temperature from one DS18S20 in DEG Celsius
  //returns the temperature from one DS18S20 in DEG Celsius
 
  byte data[12];
  byte data[12];
  byte addr[8];
  byte addr[8];
 
  if ( !ds.search(addr)) {
      //no more sensors on chain, reset search
      ds.reset_search();
      return -1000;
  }
 
  if ( OneWire::crc8( addr, 7) != addr[7]) {
      Serial.println("CRC is not valid!");
      return -1000;
  }
 
  if ( addr[0] != 0x10 && addr[0] != 0x28) {
      Serial.print("Device is not recognized");
      return -1000;
  }
 
  ds.reset();
  ds.select(addr);
  ds.write(0x44,1); // start conversion, with parasite power on at the end
 
  byte present = ds.reset();
  ds.select(addr);   
  ds.write(0xBE); // Read Scratchpad
 
  for (int i = 0; i < 9; i++) { // we need 9 bytes
    data[i] = ds.read();
  }
  ds.reset_search();
   
  byte MSB = data[1];
  byte LSB = data[0];
 
  float tempRead = ((MSB << 8) | LSB); //using two's compliment
  float TemperatureSum = tempRead / 16;  
  return TemperatureSum;
}
</pre>
 
<br>


  if ( !ds.search(addr)) {
<br>
==Extension==
You can use this keyestudio 18B20 Temperature Sensor to detect the temperture of current environment, displaying the value on the LCD. <br>
<br>[[File:图片-KS0023.png|600px|frameless|thumb]]<br>


      //no more sensors on chain, reset search
<br>
      ds.reset_search();
      return -1000;
  }
  if ( OneWire::crc8( addr, 7) != addr[7]) {
      Serial.println("CRC is not valid!");
      return -1000;
  }
  if ( addr[0] != 0x10 && addr[0] != 0x28) {
      Serial.print("Device is not recognized");
      return -1000;
  }
  ds.reset();
  ds.select(addr);
  ds.write(0x44,1); // start conversion, with parasite power on at the end
  byte present = ds.reset();
  ds.select(addr);   
  ds.write(0xBE); // Read Scratchpad
 
  for (int i = 0; i < 9; i++) { // we need 9 bytes
    data[i] = ds.read();
  }
  ds.reset_search();
 
  byte MSB = data[1];
  byte LSB = data[0];
  float tempRead = ((MSB << 8) | LSB); //using two's compliment
  float TemperatureSum = tempRead / 16;
 
  return TemperatureSum;
}</pre>


==Resources ==
==Resources ==


'''Video'''
* '''Video'''<br>
 
http://video.keyestudio.com/ks0023/
http://www.keyestudio.com/wp/ks0023/
 
'''PDF'''


https://drive.google.com/open?id=1ucy2n_wiamR_-lxg894WhyCj5Xr1bjVL
* '''Libraries'''<br>
https://fs.keyestudio.com/KS0023


'''Libraries'''


https://drive.google.com/open?id=1WGOc-cQYzeMWHGnNjJWSM6tv6Dief0UD
<br>


==Get One Now==
==Get One Now==
'''Official Website'''
http://www.keyestudio.com/keyestudio-ds18b20-temperature-sensor.html


'''Amazon Store'''
*[https://www.keyestudio.com/free-shipping-keyestudio-ds18b20-temperature-sensor-module-for-arduino-p0375-p0375.html    '''Official Website''' ]


https://www.amazon.com/Keyestudio-Temperature-Sensor-Arduino-raspberry/dp/B016ZUCMHC/ref=sr_1_3?ie=UTF8&qid=1479460234&sr=8-3&keywords=keyestudio+DS18B20+Temperature+Sensor
*[https://www.aliexpress.com/store/product/Free-shipping-Keyestudio-DS18B20-Tem-Sensor-Module-for-Arduino-and-Raspberry-Pi/4247007_32889936981.html?spm=2114.12010615.8148356.7.36c67f94m7CJth  '''Shop on aliexpress''']


[[Category: Sensor]]
[[Category: Sensor]]

Latest revision as of 14:43, 7 January 2021


18B20 Temperature Sensor


thumb


Introduction

DS18B20 is a digital temperature sensor. It can be used to quantify environmental temperature testing.
The temperature range is -55 ~ +125 ℃, inherent temperature resolution 0.5 ℃. It also support multi-point mesh networking.
The DS18B20 can be deployed to achieve multi-point temperature measurement. It has a 9-12 bit serial output. 


Specification

  • Supply Voltage: 3.3V to 5V
  • Temperature range: -55 °C to +125 °C
  • Interface: Digital


Connection Diagram


thumb


Sample Code

OneWire Library Download: http://www.pjrc.com/teensy/arduino_libraries/OneWire.zip

#include <OneWire.h>
 int DS18S20_Pin = 2; //DS18S20 Signal pin on digital pin 2
 //Temperature chip i/o
OneWire ds(DS18S20_Pin);  // on digital pin 2
 void setup(void) {
  Serial.begin(9600);
}
 void loop(void) {
  float temperature = getTemp();
  Serial.println(temperature);
   
  delay(100); //to slow down the output so it is easier to read 
}
float getTemp(){
  //returns the temperature from one DS18S20 in DEG Celsius
 
  byte data[12];
  byte addr[8];
 
  if ( !ds.search(addr)) {
      //no more sensors on chain, reset search
      ds.reset_search();
      return -1000;
  }
 
  if ( OneWire::crc8( addr, 7) != addr[7]) {
      Serial.println("CRC is not valid!");
      return -1000;
  }
 
  if ( addr[0] != 0x10 && addr[0] != 0x28) {
      Serial.print("Device is not recognized");
      return -1000;
  }
 
  ds.reset();
  ds.select(addr);
  ds.write(0x44,1); // start conversion, with parasite power on at the end
 
  byte present = ds.reset();
  ds.select(addr);    
  ds.write(0xBE); // Read Scratchpad
 
  for (int i = 0; i < 9; i++) { // we need 9 bytes
    data[i] = ds.read();
  }
  ds.reset_search();
   
  byte MSB = data[1];
  byte LSB = data[0];
 
  float tempRead = ((MSB << 8) | LSB); //using two's compliment
  float TemperatureSum = tempRead / 16;  
  return TemperatureSum;
}



Extension

You can use this keyestudio 18B20 Temperature Sensor to detect the temperture of current environment, displaying the value on the LCD.

thumb


Resources

  • Video

http://video.keyestudio.com/ks0023/

  • Libraries

https://fs.keyestudio.com/KS0023



Get One Now