Real-Time Measurement of Temperature on a System on Chip with Consideration of Ambient Temperature

Description

• Reading temperature of panStamp nodes using onboard SI7021 temperature and humidity sensor.
• Developing an Android application to display real-time data.
• Firebase cloud database is used to store data from panStamp nodes, which ultimately read by Android application in real-time to plot real-time graph.
• Comparison of sensitivity between SI7021 and DHT11 external temperature sensor using Arduino UNO.

Arduino

• Modem code used for a base station.

• Beacon code used for temperature nodes.

• Temperature nodes will be sending temperature data to the base station in below format

  <Base Station ID> <Node ID> <Tempearture Value>

  Ex: 211345

• Data is reached to the modem, python script will read data from the serial port and upload it to firebase cloud.

• Andoird application reads data from cloud and plots temperature values over the graph.

MIT app inventor for android application

• MIT App inventor uses block-based coding method.
• It uses a graphical interface to drag and drop visual objects.
• Integrated with Firebase for cloud services.
• Please follow this link to develop android applications using MIT app inventor.

Read serial data and upload to Firebase

• SerialReadPythonScript.py reads serial data given by the modem and uploads data to firebase cloud and modem should be connected to a computer USB port.
• Python packages like Pyrebase and pySerial are required to be installed. Link for installing packages Pyrebase and pySerial

Firebase cloud service

• Firebase is the real-time cloud services provided by Google to read and write data in real-time in Cloud
• Please follow this link to create firebase database.

Authors

• Animesh Mukherjee
• Sharad Sirsat
• Giriraj Pawar