A Smart Temperature Monitoring In 5 min, No Coding Required

What is this project about?

This project demonstrates how Grablo can transform complex IoT development into simple, intuitive building. We're creating a complete temperature monitoring system that traditionally requires complex C++ programming - but we'll build it in 5 minutes by simply thinking through the logic step by step.

Why did we decide to make it?

IoT development is too complex - learning C++, hunting libraries, debugging errors, and building web dashboards. What if you could just think "when temperature gets high, turn on LED" and arrange blocks to make it happen? Focus on creativity, not syntax.

What You'll Build

A complete temperature monitoring system with:

• Real-time web dashboard showing temperature and humidity
• Voice alerts when temperature exceeds your threshold
• LED indicator for visual temperature warnings
• Smart timing - alerts only during work hours (9am-5pm)
• Automatic recovery notifications when temperature returns to normal

Build Process

Dashboard

• Gauge Widget: Variable temperature
• Gauge Widget: Variable humidity

Logic

Control1 : Read DHT11 continuously

• Condition: Always
• Action: I/O Device Control → DHT11 (GPIO 23) → Read temperature/humidity

Control2: High Temperature Alert

• Condition1: Compare → temperature > 30°C (Rising Edge)
• Condition2: Time Range → 9:00 AM to 5:00 PM
• Action1: Play Media → "Temperature is high"
• Action2: I/ODevice Control → LED (GPIO 25) → Turn ON

Control3: Normal Temperature Recovery

• Condition: Compare → temperature < 28°C (Rising Edge)
• Action1: Play Media → "Temperature is normal"
• Action2: I/O Device Control → LED (GPIO 25) → Turn OFF

That's It!

Simply arrange these algorithm blocks following your natural thinking. No memorizing syntax, no debugging code - just logical problem-solving made visual!

Expected Results

When you run your project:

• Dashboard displays real-time readings automatically
• When temperature > 30°C during work hours: voice says "Temperature is high", LED lights up
• When temperature < 28°C: voice says "Temperature is normal", LED turns off

Video Tutorial

Watch the complete 5-minute build process

Get Started Instantly

Get this project: Project Link

Audio files used:

• Temperature is high
• Temperature is normal

Quick Setup:
1. Set up hardware
2. Click the project link
3. Connect your controller
4. Upload WAV files
5. Hit RUN!

What's Next?

Expand your project using more algorithm blocks:

• Multiple sensors
• Email or Telegram notifications
• Data logging
• Automatic fan control

Resources & Support

• Official Website: https://grablo.co
• Web Application: https://app.grablo.co
• Documentation: https://doc.grablo.co
• Support Email: support@grablo.co