Blynk Arduino DS18B20 Thermometer display on iOS or Android

details

Blynk Arduino DS18B20 Thermometer display on iOS or Andro

by maroelawerner

In this project, author is going to attempt to show you how to put together a little project to use the Blynk app (optainable at http://www.blynk.cc/) to display the temperature remotely on a iOS or Android device.
All of you guys may easily be able to make it.

Blynk Arduino_0

Parts

  • Arduino UNO clone
  • Ethernet shield
  • Dallas DS18B20 sensor
  • A 4k7 resistor is also required as a pull-up resistor for the data line.
  • Optional Breadboard
  • An iOS or Android device

Wiring

The DS18B20 sensor connections are as follows, looking at the label:
Blynk Arduino_4

legdescription
Left legGND
middle legData
Right leg5 V

Blynk Arduino_1

Breadboardethernet Shield
Vcc5V
GNDGnd
Datapin 7
4k7 resistorbetween 5 V and Data legs

Source Code

The first file is for a single display only. The second one is a demo using different types of displays.
Download :
BlynkBlink_ds18b20.ino
BlynkBlink_ds12b80_multi_display.ino

Blynk Arduino_2
Author used the BlynkBlink scetch from the Blynk examples and the DS18x20_temperature example from the OneWire Library.

Result

Blynk Arduino_3

Screenshot of several different displays using the second code file.

Blynk Arduino_5

For more informaion, please refer to the following link:
http://www.instructables.com/id/Blynk-Arduino-DS18B20-Thermometer-Display-on-IOS-o/

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