New farms could save a lot by building their own incubators. Ideally eggs require a temperature of 37.5°C and take 21 days to hatch. A little bit of daily monitoring and changing the position of the eggs to disperse heat equally is all it takes. Here is an easy setup that you can make in no time.
37.5°C is Ideal
The entire project centers around the main concept of maintaining the eggs at a temperature of 37.5°C. There may be a variation of ±2°C.
When the temperature drops below 37.5°C, the circuit activates a bulb that warms up the eggs, keeping it on for at least 30 seconds. It then verifies if the optimal temperature has been reached and turns off the bulb when it becomes too warm. This process repeats throughout the day.
Circuit Essentials
1) Arduino Nano
2)DHT 11 Temperature And Humidity Sensor
3)5v Relay
4)Incandescent Bulb (25 W)
Begin by supplying power to the temperature sensor and the relay(5v, GND pins).
The DATA pin of DHT11 is connected to pin 4 of Arduino.
The IN of relay is connected to pin 13 of Arduino.
Any one wire of the bulb should be broken and the ends should be connected to Common and Normally Not Connected Pin of relay.
Test the circuit out and do the necessary changes.
Code
void setup(){ Serial.begin(9600); } void loop(){ int chk = DHT.read(DHT11_PIN); Serial.println(DHT.temperature); if(DHT.temperature<37.5) { digitalWrite(13,HIGH); delay(30000); } else { digitalWrite(13,LOW); delay(30000); } }
Tips
Place a glass of water inside to increase the humidity in the box.
Mark the eggs and change its position at least 3 times a day.
Keep a track of the progress and stop changing the position at the day 18.
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