Top Board - Bastl Instruments Spa Assembly Manual

Turn around the PCB and insert
and solder the
pinheaders (6 pin, 2x5 pin). Be
careful to solder the pinheaders
straight! You may first solder
one of the pin ​ , then take the
board in your hand and re­heat
that pin while pressing down on
the header to align it. Wait for it
to cool and solder the rest of the
pins.
Now you can insert three ​ I Cs into the sockets (MCP6002, MCP6004, Atmega). ​ W atch out for
orientation! There is a notch on the ICs that should match with the notch on the sockets. Install also the
small nut ​ a nd ​ s crew​ on the voltage regulator.
TOP BOARD
Now populate the top board. Take your time and find the values of remaining ​ r esistors ​
multimeter 2 (or you can check the color codes if you are seasoned enough). There are eight of them to
solder (4x 100R, 2x 1k, 2x 100k).
Prepare ​ f emale pinheader with your flush cutters now. You
need a 10 pin one. You will always lose one pin when cutting
the female headers, so be sure to cut it always after the last
required pin ­ check the picture to see where to cut to get 10
pin).
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