I drilled a hole all the way through the back for the power cord. This is a perfect choice as it is already insulated and will therefore stay hot inside easier. A high powered power supply (I used a 12V6A AC to DC converter)įirst thing's first the box! I used a mini freezer that doesn't work anymore.A container for the incubator (I used an old mini standup freezer!).All of the electronics parts listed at the beginning.PCBWay sponsored the PCB for this project! Their PCBs are very high quality, and I am impressed with the detail in the lettering! Just check out my profile page for project ideas! They have any module or piece you can think of for any type of project. They have many high quality and well documented parts. You can also have me assemble a PCB with my parts for additional costs (assembly does NOT include the 5V regulator).ĭFRobot was the sponsor for this project! They sponsored most of the electronic parts for it, and I also bought some parts from them myself for this project! If you would like to buy a PCB from me, I have 4 new PCBs leftover from this project! I also made sure that all of the Mega pins are available on pin headers, that way you can do many modifications to this project. The motor driver is stacked on top of the PCB, and the whole stack is stacked on top of the DFRduino Mega (or Arduino Mega)! I created a Printed Circuit Board that just makes the wiring simpler. The stepper motor gradually increases and decreases its speed to prevent catapulting the eggs out of the rotator. This can be changed at the beginning of my code. The eggs are rotated once every two minutes in my incubator. If the humidity falls below or rises above the correct values, the display will turn red instead of green, and it will beep every so often. So you will have to manually raise the humidity if it gets too low. The humidity is not controlled by the incubator, but is only monitored. With my code so far, I have seen my incubator get up to 96.25˚ (tested with a thermostat from DFRobot). If the temperature is above 96.50˚, only one heater will stay on, while the other three and the fan is off. If the temperature is less than 96˚, two heaters will be fully on, and the fan will be also. If the temperature is from 95.75˚ to 96˚, the fan will do the same as above, but with only 3 heaters on. After trial and error, this is the only way my incubator would get hot enough, because with the fan always on, it only got up to ~90˚. The purpose in this, is to try and get the heaters to be hotter before the fan dissipates the heat around the space. If the temperature is greater than 88˚ and less than 95.75˚, all four heaters will be turned on, and the heater fan will fully turn on for 40 seconds, then turn off for 80 seconds. If the temperature in the incubator is less than 88˚, all four heaters will be fully turned on, and the heater fan also fully turned on. ![]() I have my incubator rotating once every 2 minutes right now! They also need to be rotated at least 3 to 4 times a day (the more the better). Eggs must never be placed pointy side up. This happens because there is more surface area on a rag (almost like a sponge), which means the water evaporates faster.īesides the temperature and humidity adjusting, the eggs need to be rotated. I also tried a damp rag, and had much better results! The humidity rose from 25% to 55%. To increase humidity, just place water inside the incubator! I tried placing a little container with a small amount of water inside, and that raised my humidity from 20% to 35%. My incubator does not have automatic humidity control. The humidity needs to be from 20% to 60% for the first 18 days, and for the last three, it needs to be from 70% to 80%! ![]() The right temperature is approximately 95.5˚F, although some people may adjust that slightly higher or lower based off of their hatching ratio. It also controls the temperature, and rotation.įrom here on, I will be referring to chicken eggs when I mention eggs.Įggs need to be incubated for 21 days in total. What we will build is an incubator that monitors temperature and humidity.
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