Circuitmess MAKERbuino Build Manual page 8

16MHz Crystal
Inside this metallic package is a crystal used in MAKERbuino's microcomputer's
oscillator circuit.
In other words, MAKERbuino's neat 16MHz of CPU clock is possible thanks to this
component.
Standard digital clocks and watches work on the same principle.
IMPORTANT: Text marking on the crystal may vary and sometimes look like this:
"16B000"
Capacitors
There are three different types of capacitors in your MAKERbuino kit
3.5mm headphone connector socket
This is a standard headphone connector socket used on most devices' audio output channels. You can
connect your regular headphones to this connector to hear all the amazing bleeps and bloops your
MAKERbuino synthesizes.
1N4148 Diode
This is a standard diode.
It's used in MAKERbuino's sound circuit.
This is NOT a light emitting diode (LED), it doesn't light up, it's used as an essential part of the sound's
circuit amplifier.
3 Pin Toggle Switches (2 pcs)
These 3-leaded standard electromechanical switches are used for turning your MAKERbuino ON
and OFF and muting the speaker.
100uF Electrolytic Capacitors (3 pcs)
These look like small black barrels with two leads. They're used for filtrating noise and
ensuring that MAKERbuino's circuitry is powered with clean and stable electrical
current. These capacitors should have 100uF written on their surface. Unlike other
capacitors in the kit, these are polarized.
Electronics 101: only electrolytic capacitors are polarized and have significantly higher
capacity compared to other capacitors.