Research Presentation

1. Applying MQTT Protocol and Node-
Red Programming in Designing IoT
based Home Automation
Engr. Oscar Bryan M. Magtibay
Electrical Engineering Department
College of Information Technology and Engineering
De La Salle Lipa

2. Background of the Study
• Internet of Things (IoT)
 System of connected devices and the ability
to send or receive data over a network
• Building Energy Management System
 Consist of Hardware and Software to
control and monitor devices in a Building

3. Background of the Study
• Home Automation Systems
 Communication: Bluetooth, Zigbee, RF,
GSM, Wired LAN, WiFi
 Protocols: Serial, HTTP
 Controllers: PIC, Arduino, ESP8266

4. Background of the Study
• MQTT
 Message Queuing Telemetry Transport
 Lightweight publish/subscribe messaging
transport
• Node-red
 Flow-based programming tool,
 Originally developed by IBM

5. Objectives
• Problem:
 Existing systems require additional hardware
 Increase to the cost of the system
• Objective:
 Determine the user and hardware requirements
 Design the system architecture
 Deploy system and apply MQTT and Node-red
application
 Test and evaluate the results

6. Scope
• It will be limited to the number of appliances
• The hardware device will be connected to
switches of lamps and outlets for small
appliances.
• The rating of the device is limited to the rating of
the relay and current sensor to be used for the
system.
• It will utilize the existing WiFi connection.

7. Methodology
• System Architecture

8. Methodology
• Hardware Design
Power Supply
NodeMCU
Relay
ACS712
Current
Sensor

9. Methodology
• Web Application Design
Node-red
Application
Node-red
Application

10. Test and Results
• Consumption of Server and Hardware nodes• Consumption of Server and Hardware nodes
Hardware Node Raspberry Pi Zero W

11. Test and Results
• Web application and Twitter Integration
Web Application
Twitter Integration

12. Test and Results
• Comparison of existing systems

13. Conclusion
• The selection of the hardware components meets the
needed specifications.
• The system architecture was made simple.
• The use of MQTT protocol and Node-RED application
was suitable for developing IoT systems at Home.

14. Thank You!
Oscar Bryan M. Magitbay
Registered Electrical Engineer
Educational Background:
BSEE – Batangas State University, Alangilan Campus (2004)
MSCpE - Batangas State University, Alangilan Campus (2016)
Work Experience:
Assistant Professor II – De La Salle Lipa (2010 – present)
Head, Engineering Laboratories – De La Salle Lipa (2016 –
present)