Egg incubator parts as a Shield for Arduino UNO

[epsi1on]

Hi
I've managed to make it as a shield for Arduino, you can check it here:

https://oshwlab.com/epsi1on/ardbrood

It is still under development, just need a polygon pour to connect GND pins
Edits:

• Make a variable PWM generator (with POT) for speed control of FAN instead of a linear regulator
• Add DC jack on the shield (Arduino's jack goes into a diode so better to do not draw high current, like heating up element)
• Add header for servo and thermal sensor, also terminal for FAN and heating element
• Add stabilizer cap for 7805 regulator
• Use IRFZ44N mosfet

Thanks...

edit: I made it but didn't worked :)

[epsi1on]

Did some edits

https://oshwlab.com/epsi1on/ardbrood

• DHT data pin is connected to D2 instead of D3
• FAN RPM Sense is connected to D12 instead of D2
• FAN Speed Control is connected to D2 (4 pin fan is used instead of 3 pin)

single sided PCB for print (toner transfer)
pcb.pdf

@quantenschaum can you please give your opinion?

Thanks