I have create a PCB for the drop controler v3
I have a minor change in the circuit, i dint use the power regulator and the IRF9Z24N to control the power of the arduino and the corect polarity.
Instead i have use a LM7805 and a 1N4007 to make the PCB more simple.
My PCBs is not here yet so i can not test it so be careful if you use it.
Feel free to edit or tet the pcb, have fun all.