BOM – BILL OF MATERIALS
1 x 10kΩ 0,4W 1% resistor
1 x 2x5 pin male pinheader
4 x pot knob
6 x 100nF capacitor
1 x 6 pin male pinheader
1 x programmed
Atmega328
2 x 10μF capacitor
1 x 10 pin female pinheader 1 x 11mm spacer
1 x 1N4007 DIODED7.5
4 x 100RΩ 0,4W 1% resistor 1 x 10mm spacer
1 x 7805 voltage regulator
2 x 1kΩ 0,4W 1% resistor
6 x jack washer
1 x 16MHz resonator
2 x 100kΩ 0,4W 1% resistor 6 x jack nut
1 x 100mA PTC fuse
1 x switch
2 x 6mm screw
1 x MCP6002 IC in foam
6 x jack connector
2 x 8mm panel screw
1 x MCP6004 IC in foam
1 x 10 pin male pinheader
1 x imbus key
1 x 8 pin DIL socket
4 x 100k lin potentiometer
1 x 10 to 16 pin power cable
1 x 14 pin DIL socket
1 x top PCB
1 x 6 pin cable
1 x 28 pin DIL socket
1 x bottom pcb
1 x laser engraved panel
We even included some of the best quality solder we found to help you solder everything
faster.
All the parts should come in three bags separated for top board, bottom board and the
hardware.
The SPA module consists of two boards, the top board is used for all of the UI components
and the bottom board is the heart of the sound processing circuit.
Before starting soldering, take your time and find all the resistors value, either
or
BOTTOM BOARD
Lets start with the bottom board, with the shortest and smallest parts.
There is one 10KΩ resistor, place that and solder it to the board. Next solder the diode. Be
careful though, diodes are
polarized!
Make sure that the marking ring on the diode body
matches the marking on the circuit board.
Your board should look like this (click on the images to enlarge):
