Thermo Guard

ThermoGuard transforms a simple thermometer into a smart monitoring system by combining real-time temperature sensing, intelligent analysis, and automatic alerts. Users can monitor temperature remotely through a web dashboard and receive instant warnings when conditions become unsafe.

#arduinoIde

ThermoGuard is an IoT-enabled Smart Temperature Monitoring and Alert System designed to monitor, analyze, and protect temperature-sensitive environments in real time. The system utilizes an ESP32 microcontroller, DS18B20 temperature sensor, 16×2 LCD display, and buzzer alarm to provide intelligent temperature monitoring through a wireless web dashboard.

Unlike conventional thermometers that only display temperature values, ThermoGuard continuously compares live temperature readings against predefined safe ranges and automatically generates alerts whenever abnormal conditions are detected.

The project is designed for applications such as healthcare monitoring, food storage, greenhouses, laboratories, fish tanks, server rooms, and smart homes.

Components Used:

1. ESP32 Dev board
2. DS18B20 Temperature Sensors
3. 16×2 LCD Display (I2C)
4. 18650 Battery
5. Buzzer
6. 4.7kΩ
7. Breadboard Half Size
8. 18650 Battery Holder
9. Jumper Wires

Code:

Collect all required components:

1. ESP32
2. DS18B20
3. LCD 16×2 I2C
4. Active Buzzer
5. Breadboard
6. Jumper Wires

DS18B20 PinESP32 Pin

VCC 3.3V

GND GND

DATA GPIO4

Note: Connect a 4.7kΩ resistor between DATA and 3.3V.

Add a 4.7kΩ pull-up resistor between DATA and 3.3V.

Install:

1. WiFi.h
2. WebServer.h
3. OneWire.h
4. DallasTemperature.h
5. Wire.h
6. LiquidCrystal_I2C.h

Update:

Upload the program.

Upload the ThermoGuard firmware to the ESP32 using Arduino IDE.

Find:

Enter the IP address into a browser.

Example:

Ready To use