Industrial IoT with Dallas Digital Thermometer DS18B20 with
Node MCU ESP8266 for Automated Temperature control system with Blynk App and Thingspeak App
Main Features of the DS18B20 temperature sensor:
Main Features of the DS18B20 temperature sensor:
It comes with factory embedded 64 bit address.
It is a 1-wire digital temperature sensor with built in SoC (System on Chip).
It comes with a sealed package that lets precisely measure temperatures with 12bit ADC with accuracy of ±0.5°C
A DS18B20 is factory calibrated to output the right temperature.
It is weather proof IP66 rated so it can be immersed in water or any liquid to measure temperature.
It communicates on a common bus and several devices can be connected in parallel.
The Sensor can measure the temperature between -55 to 125°C (-67°F to +257°F). The cable is jacketed in PVC.
DS18B20 is a digital temperature sensor, so input doesn’t affect the output reading.
DS18B20 is a digital sensor, there is no effect in any output value.
each one has a unique 64-bit ID burned in at the factory to differentiate them.
The sensor works from 3.0 to 5.0V,
The sensor has 3 wires:
Black: GND
Red: VCC
Yellow: 1-Wire Data
In order to use the DS18B20 properly, two libraries will be necessary:
OneWire
DallasTemperature
Install both libraries in your Arduino IDE Library depository.
The frequency to read data: 1 second
Advantages of automated system of Industrial IoT:
- We can set precise value of temperature at 16 degree centigrade
- As and when the temperature goes above 18 degree centigrade the air conditioner will starts automatically and reduces temperature.
- When the temperature reaches 16 degree centigrade one of the Air conditioner shall switch off.
- Both time when the Air conditioner switches On and Off push notification will be sent to the registered mobile number.
- The temperature value would be sent periodically to the registered mobile the time interval to be decided by the user.