The project building does not present particular difficulties. The PCB is a single layer that can be realized with the "homemade" techniques. Particular care has to be taken printing the master on a transparent paper: the "adapt to the paper size" or any resizing functions for the master must be avoided.

The board mounting must start from the wires, resistors, capacitors and ic sockets. The power mosfets are mounted on the bottom side of the PCB, with the top face very near to the PCB copper layer. Only the hole on PCB allows the user to mount the transistors on the cooler.
The tracks for very high currents must be well sized with sn-pb plating. The wire that enters in the current to voltage converter must be at least 2.5sqmm. All the wires from/to power supply and from/to battery must have at leat a copper area of 2.5sqmm and the terminal with a banana plug of 4mm with a current rating of 32A.

The connectors with multiple pins have the pin number one with a square pad. The ICs sockets have to be depopulated for the pins that have no hole on the PCB area.

The serial port should be connected to a DEM9P connector (D type connector exactly equal to the one present on the PC rear side) and for this the TX wire should be connected to the pin number 3, the RX pin to pin 2 and GND to pin 5. With this pin assignment the PC connection is done using a 3-wire, 2 and 3 pins twisted, serial cable.

Note that the cooler is connected to the P-channel and N-channel mosfet drain pin, with a good effect on the interconnection resistance, but with the disadvantage of a cooler potential equal to the battery pack.