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Baby Monitor
| Author | Vica Teodor-Andrei |
|---|---|
| Series and Group | 331CB |
Introduction
The project consists of developing an electronic system for monitoring the environmental conditions in a baby's room, using the ATMega328P Xplained mini development board.
Features
- Monitoring temperature and humidity using the DHT11 sensor
- Displaying values on an LCD 1602 screen
- Detecting ambient noise using a microphone module
- Identifying baby crying based on a predefined noise threshold
- Real-time alerting through:
- buzzer (audio alert)
- RGB LED (visual alert)
General Description
The device uses a DHT11 sensor to continuously measure temperature and air humidity, displaying these values on an LCD 1602 screen to allow monitoring of an optimal microclimate.
At the same time, a microphone module monitors the sound intensity in the room, being programmed to detect the baby's crying when a predefined noise threshold is exceeded.
When crying is detected, the system immediately triggers:
- an audio alert using a buzzer
- a visual notification using an RGB LED
This mechanism provides parents with an efficient real-time alert system.
Hardware Design
List of components:
| Component | Utility |
|---|---|
| Atmel ATMega328P Xplained mini | Microcontroller |
| DHT11 Sensor Module | Digital sensor for temperature and humidity measurement |
| Sound Sensor Module (LM393 Comparator) | Detects and compares acoustic noise levels |
| LCD 1602 Display Module | Visual output unit for displaying text and data |
| I2C Converter (PCF8574) | Enables serial communication between microcontroller and LCD |
| Active Buzzer 5V | Audio alert component |
| RGB LED | Multicolor LED for status indication |
Software Design
Conclusions
Download
Bibliografie/Resurse
