Bus pirate

Connection

1. do a dmesg to find which tty the bus pirate is connected to
2. check if you have the write and read right on the tty before you connect to it
3. do a screen /dev/buspirate 115200 8N1
4. you will be prompt with a nice prompt.
5. If you still don't have a prompt, type enter, you will have a shell.

logic sniffer

You can use the bus pirate as a logic sniffer. I would recommand using the Open bench logic for this. You can use this tutorial : http://dangerousprototypes.com/2012/02/12/sniffing-spi-data-with-bus-pirate/ Which is designed by the bus pirate constructor to sniff data Note that this can be used only up to 5 input.