Blynk Arduino DS18B20 Thermometer display on iOS or Andro
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.
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:
| leg | description |
|---|---|
| Left leg | GND |
| middle leg | Data |
| Right leg | 5 V |
| Breadboard | ethernet Shield |
|---|---|
| Vcc | 5V |
| GND | Gnd |
| Data | pin 7 |
| 4k7 resistor | between 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
Author used the BlynkBlink scetch from the Blynk examples and the DS18x20_temperature example from the OneWire Library.
Result
Screenshot of several different displays using the second code file.
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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