Temperature and Humidity Controlled Egg Incubator Using Arduino Uno

Flashcards covering the objectives, hardware components, circuit connections, software libraries, and operational specifications of the Arduino Uno temperature and humidity controlled egg incubator.

What is the general objective of the proposed Arduino-based egg incubator project?

To design, construct, and evaluate a low-cost egg incubator using Arduino that automatically monitors and regulates temperature and humidity through an automated control system.

What component serves as the heating element in the incubator system?

A light bulb, which is switched on or off via a relay module based on temperature sensor readings.

What is the primary function of the small fan inside the egg incubator?

To circulate air inside the chamber to distribute heat evenly, promote uniform temperature conditions, and provide ventilation.

What specific temperature thresholds trigger the closed-loop automatic heating control?

The Arduino turns the heating bulb ON when the temperature falls below $37.3\,^\circ\text{C}$ and turns it OFF when the temperature exceeds $37.7\,^\circ\text{C}$.

What sensor is specified in the system design to measure both temperature and moisture levels?

The DHT22 (and DHT11 on the schematic) temperature and humidity sensor.

Which display screen and interface library are used to show real-time temperature, humidity, and bulb status on the device?

A $16 \times 2$ LCD display using an I2C interface, controlled by the LiquidCrystal I2C Library.

Which actuator and library are implemented to perform automatic egg turning at scheduled intervals?

A servo motor controlled using the Arduino Servo Library.

What passive component provides moisture inside the incubation chamber to regulate humidity?

A water tray (or water container) placed at the bottom of the incubator.

What are the two software subsystems integrated into the single Arduino Uno R3 board?

The Sound Detection System (servo, buzzer, fan, sound sensor) and the Egg Incubator System (DHT22, LCD, relay, bulb).

What range of real-time sound values does the serial monitor display for the Sound Detection System?

Values ranging from $0$ to $1023$.

Why can the proposed automated incubator not guarantee a 100% hatching success rate?

Because hatching success also depends on egg fertility, egg quality, sanitation, ventilation, proper egg turning, and species-specific incubation requirements.

What role does the relay module serve in the incubator's electronic circuitry?

It allows the low-power Arduino microcontroller to safely switch the electrical power to the heating element (light bulb) on or off.

What physical feature is required of the incubator box or cabinet material to help maintain internal temperature stability?

It should be constructed from an insulating material.

What system wiring layout is depicted in this circuit diagram?

The schematic wiring connections between the Arduino Uno, Power Supply, LCD Display, DHT humidity/temperature sensor, Relay Driver, heating bulb, cooling fan, and servo motor.

What physical incubator assembly and layout does this design drawing represent?

The 3D cutaway cabinet enclosure showing the placement of the top LCD, heating bulb, circulation fan, wall-mounted humidity sensor, servo motor, egg tray, and bottom water tray.