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# Arduino Spy Bug
A simple voice recorder for Arduino using an SD card and an electret microphone amplifier circuit.
Independent of any 3rd party libraries like (unless delayed recording is used).
## Wiring (also documented in spybug/spybug.ino)
### SD Card Wiring
SD | Nano
---------|------------
D0 (DO) | D12 (MISO)
VSS | GND
CLK | D13 (SCK)
VDD | 5V or 3V3
CMD (DI) | D11 (MOSI)
D3 (CS) | D10 (SS)
WARNING: SD cards are not designed for 5V; I have been using 5V anyways
and everything seems fine, but beware that there is a significant risk
of immediate or premature failure when not using a buffer circuit.
SD pin D3 is the chip select pin. It can be set manually in `PIN_SS`.
### Microphone Wiring (MAX9814 w/ electret microphone)
Mic | Nano
---------|------------
VCC | 5V
GND | GND
Out | A0
Out defaults to A0 (AdcChannel0), but can be set manually in `ADC_CHANNEL`.