7430 8-Input NAND Gate Original price was: 19.00 EGP.Current price is: 14.00 EGP.

DS18B20 Digital Temperature Sensor

Original price was: 60.00 EGP.Current price is: 40.00 EGP.

DS18B20 Digital Temperature Sensor

SKU: DS18B20 Sensor Categories: Tags: ,

DS18B20 Digital Temperature Sensor


  • Stainless steel casing (6 * 30mm), length 100cm lead
  • 3.0V ~ 5.5V DC power supply
  • Temperature range -55?C?~ 125?C
  • No external components, unique single bus interface
  • Output leads: Will be 1 of the below configurations.

Connect Probe with your Arduino Tutorial (garagelab)
Connect the red to 5V, the black to GND and the white to the digital pin D10. Then, put a 4.7kohm resistor between the white wire and the 5V.

Now, download and install this?library. Then upload the following code:

#include <OneWire.h>
int DS18S20_Pin = 10; //DS18S20 Signal pin on digital 2
//Temperature chip i/o
OneWire ds(DS18S20_Pin); // on digital pin 2
void setup(void) {
void loop(void) {
  float temperature = getTemp(); //will take about 750ms to run
float getTemp(){
    //returns the temperature from one DS18S20 in DEG Celsius
    byte data12;
    byte addr8;
    if ( !ds.search(addr)) {
      //no more sensors on chain, reset search
      return -1000;
    if ( OneWire::crc8( addr, 7) != addr7) {
      Serial.println("CRC is not valid!");
      return -2000;
    if ( addr != 0x10 && addr != 0x28) {
      Serial.print("Device is not recognized");
      return -3000;
    ds.write(0x44,1); // start conversion, with parasite power on at the end
    delay(750); // Wait for temperature conversion to complete
    byte present = ds.reset();
    ds.write(0xBE); // Read Scratchpad
    for (int i = 0; i < 9; i  ) { // we need 9 bytes
      data[i] = ds.read();
    byte MSB = data1;
    byte LSB = data;
    float tempRead = ((MSB << 8) | LSB); //using two's compliment
    float TemperatureSum = tempRead / 16;
    return TemperatureSum;

The above code acquires the temperature in Celsius and display it over the serial connection. The Arduino checks if the sensor is connected. Then it sends the sensor address and reads the data.
Open the serial monitor and start reading the temperature!

Also, you can convert Celsius to?Fahrenheit.?Have fun!

References of DS18B20 Digital Temperature Sensor:




14 Days Warranty

This item is covered with a standard warranty of 14 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Micro Ohm customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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