TEMPERATURE MONITORING On Smartphone
This article describes a temperature monitoring system on an Android smartphone. Temperature is sensed by a temperature sensor installed in the circuit, and is sent over Bluetooth to the smartphone. An Android application is used in the smartphone to display temperature data. The system provides easy monitoring of process data on a smartphone.
You can connect the smartphone wirelessly with the system and monitor the process variable, when desired. The system can easily be customised to monitor other process variables also. Authors’ prototype of the transmitter side is shown in Fig. 1. The receiver side consists of the smartphone. A screenshot of the Android app is shown in Fig. 2. Block diagram of the project is shown in Fig. 3.
Circuit and working
The circuit diagram of the temperature monitoring system on smartphone is shown in Fig. 4. Components used in this project are given below.
Android smartphone. Install the temperature monitoring app on Android smartphone. The app (temperaturemonitoring.apk) used here has been built using MIT App Inventor. When the app is running on the smartphone, data sent by HC-05 Bluetooth module is received and displayed on the app.
This story is from the July 2018 edition of Electronics For You.
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This story is from the July 2018 edition of Electronics For You.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 8,500+ magazines and newspapers.
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