1. Authors:
Amardeep Singh Brar
Jaideep Singh
Parul

2. What was required
• Monitor temperature and humidity of 3 HVAC units wirelessly,
• Centralized display of all parameters measured
• Alerts on violation of pre-set conditions
• Pre-set conditions should be modifiable

3. Selection of Technology
• NRF2401 (Radio Transceiver)
• ESP8266 (Wifi Module)
• Xbee (ZigBee Technology)

4. Why Xbee is better
• Standalone mesh network
• Self healing network
• Built in ADCs and GPIO pins
• Source and destination addressing
• Data security

5. How it works
How
it
Works

6. Graphs created by exporting the logged data to MS Excel
Experimental Results

7. Future aspects
• Text and Email notifications of alerts
• Uploading data to web server
• Interfacing with Rasberry Pi