PCBWay Temperature Indicator System

Introduction

In many systems, there is a great need to measure and indicate process temperatures to users. In these processes, the temperature is a critical factor and may influence the safety of the systems.

Thus, systems that measure and indicate temperature are required.

So, through this project, you'll learn how to construct your temperature indicator system using Arduino Nano and you'll obtain your PCB Project to construct your own Temperature Indicator System.

The Project

The project is constructed through an Arduino Nano, DS18B20 Sensor, and TM1637 Display. Everything can be seen in Figure 1.

Through this circuit is possible to see the temperature is indicating in the TM1637 Display. The Electronic Schematic to construct your circuit is presented below.

Through this circuit, the printed circuit board was designed. And the electronic schematic is presented below.

After the electronic schematic circuit, was constructed the Printed Circuit Board presented in Figure 4.

Therefore, after constructing the printed circuit board, we'll offer the code to measure the temperature. The code is presented below.

#include <OneWire.h>
#include <DallasTemperature.h>
#include <TM1637Display.h>

#define ONE_WIRE_BUS 8 //Digital Pin to connect the DS18B20 Sensor


OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
DeviceAddress sensor1;

TM1637Display display(2,3);

const uint8_t DEGREES[] = {0x0, 0x0,
  SEG_A | SEG_B | SEG_G | SEG_F,  // Degree Symbol
  SEG_A | SEG_F | SEG_E | SEG_D,  // C
  };

unsigned int temperature = 0;
byte PreviousValue = 0;

void setup()
{
    sensors.begin();
    display.setBrightness(7);   // set display to maximum brightness

    if (!sensors.getAddress(sensor1, 0))
    {         
     Serial.println("Sensor not found!");
    }
}

void loop()
{
    //Request sensor data
    sensors.requestTemperatures();

    int tempC = sensors.getTempC(sensor1); //Read temperature of DS18B20 Sensor

       if(tempC != PreviousValue)
       {
        PreviousValue = tempC;
        display.setSegments(DEGREES); //Display the Variable value
        display.showNumberDec(tempC,false,2,0);
        delay(2000);
       }            
}

Conclusion

Through this project, you can apply in several projects like a brooder, incubator, liquid heating systems, and other projects. In addition to you can use a PCB like a shield for Arduino Nano, because it has pins to connect other devices.

You can download the files in the PCBWay.com website and create your own project.

Acknowledgment

Thanks to the PCBWay for support the our YouTube Channel and produce and assembly PCBs with better quality.

The Silícios Lab thanks UTSOURCE to offer the electronic components.