Just found this thread...

The pins are for serial connections. the USB is just for power.
(the strange setup is due to the fact that I found out that USB doesn't work with long cables, after I set up the USB)
The doorman.py script uses ttyAMA0 to communicate to the MSP430. So, the two pins that were knocked off, should have gone to GRN and UART-TX (serial UART transmit pin), wherever those are.


On Fri, Mar 22, 2013 at 9:56 AM, Andrew <andrew@roshambomedia.com> wrote:
I'm confused actually. why where there pins on the raspi being used at all? the serial connection is usb, what else needs to go to the MSP430, power?

https://gitorious.org/doorman/doorman




On Fri, Mar 22, 2013 at 9:52 AM, <hol@gaskill.com> wrote:
also, i looked into the internal oscillator on the arduino (ATmega328P) and it should work for I2C or analog stuff but might have difficulty with TTL serial based on factory tolerances http://electronics.stackexchange.com/questions/27763/using-the-atmega328-with-the-internal-oscillator



--
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Andrew Lowe
http://www.lostways.com

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