7430 8-Input NAND Gate السعر الأصلي هو: 19.00 EGP.السعر الحالي هو: 14.00 EGP.

DS18B20 Water Proof Temperature Probe – Black (1m) Original Chip

السعر الأصلي هو: 100.00 EGP.السعر الحالي هو: 70.00 EGP.

  1. A probe by new original installation import DS18B20 temperature sensor chip.
  2. Stainless steel tube encapsulation waterproof moistureproof prevents rust.
  3. Stainless steel shell (6 * 45 mm), lead length 100 mm (shielding wire) use stability;
  4. 3.0 V-5.5 V power supply;
  5. Temperature range wide: -55 ℃ ~ + 125 ℃;
  6. Without the external components, the unique single bus.

 66.00

  1. A probe by new original installation import DS18B20 temperature sensor chip.
  2. Stainless steel tube encapsulation waterproof moistureproof prevents rust.
  3. Stainless steel shell (6 * 45 mm), lead length 100 mm (shielding wire) use stability;
  4. 3.0 V-5.5 V power supply;
  5. Temperature range wide: -55 ℃ ~ + 125 ℃;
  6. Without the external components, the unique single bus.
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DS18B20 temperature sensor probe chip with high-quality stainless steel anti-rust waterproof probe housing. Ideal for getting soil temperature, Arduino and other development systems.
Features:

  • 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)

Connection:?The sensor has 3 wires: red (VCC), black (GND) and white/yellow (DATA).
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) {
  Serial.begin(9600);
}
void loop(void) {
  float temperature = getTemp(); //will take about 750ms to run
  Serial.println(temperature);
}
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
      ds.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.reset();
    ds.select(addr);
    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.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 = 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:
http://bildr.org/2011/07/ds18b20-arduino/
http://www.arduino.cc/playground/Learning/OneWire
https://rik94566.wordpress.com/tag/miles-burton/

Datasheet:
http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Sensors/Temp/DS18B20.pdf

This is DS18B20 Water Proof Temperature Probe – Black (1m) Original Chip which is based on the DS18B20 sensor.

It is very handy for when you need to measure something far away, or in wet conditions. Because they are digital, you don’t get any signal degradation even over a long distances.

These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter.

They work great with any microcontroller using a single digital pin, and you can even connect multiple ones to the same pin, each one has a unique 64-bit ID burned in at the factory to differentiate them. Usable with 3.0-5.0V systems. When using with microcontroller put a 4.7k resistor to sensing pin, which is required as a pull-up from the DATA to VCC line.

Wired connection

Red: VCC/VDD
Yellow/White: DATA
Black: GND


Features :

  1. Each pin uses a heat-shrinkable tube to prevent short circuits, internal sealing glue, waterproof, moistureproof.
  2. Stainless steel tube encapsulation waterproof moistureproof prevents rust.
  3. Stainless steel tube 6mm diameter by 30mm long
  4. Contains DS18B20 temperature sensor
  5. 9 to 12-bit selectable resolution
  6. Uses 1-Wire interface- requires only one digital pin for communication
  7. Unique 64 bit ID burned into the chip
  8. Multiple sensors can share one pin
  9. Temperature-limit alarm system
  10. Query time is less than 750ms
  11. Without the external components, the unique single bus.

Note: The probe wire length may vary ±3%


Package Includes :

1 x Waterproof Digital Thermal Probe DS18B20 1 meter cable.

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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