We perforate plates

Soldered components

Stripped to the potentiometer guide

phenolic drilled plate to put the potentiometer

Keyboard Base

In the case of the girl plate, putting them headers weld the top, above the pins cut with sandpaper and water removed the excess

Keyboard mount

We add tape double tape para pegar el teclado a la placa

Here we encounter a detail, headers clogged with the flex of the keyboard, the cut (we consider for the next version)

Weld the headers that are under the keyboard and bend backward to connect the keyboard laterally

We put in place the keyboard on the LCD board, here's a detail, the base of the MAX485 am very attached to the keyboard, we force a little (we consider in the next version)

Mount the Arduino

We add to Arduino Mega some tape to the USB port to prevent a short circuit between tracks

All welded components

Load the firmware on the Arduino

.ino

Working...