Use the Raspberry PI to Sample Audio from a MCP3008 10-bit ADC, perform signal processing for beat detection and display those beets on a WS2801 LED Strip.

We must enable spi on the Raspberry Pi we must edit /boot/config.txt as root and have this line in config: dtparam=spi=on. A reboot of the Pi is necessary to have SPI on and can be checked by confirming the spi kernel module is enabled:

pi@raspberrypi:~ $ lsmod | grep spi
spi_bcm2835             7424  0
pi@raspberrypi:~ $ ls /dev/spidev*
/dev/spidev0.0  /dev/spidev0.1

We used Rasbian Jesse for this

1. ansible - We use ansible to copy the source, build it, test it and run it

MCP3008 Datasheet MCP3208 Datasheet for Reference RPi MCP3208 SPI by Derek Molloy