Connecting a DB9 serial to BBB

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gilbnx
 
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Joined: Tue Jun 24, 2014 5:13 am

Connecting a DB9 serial to BBB

Post by gilbnx »

Hi,
Just got my amazing BBB rev. C and I love it. I'm new to the boards world but I do have some electronics background.

I'm trying to hook an X10 Firecracker to it (so I could control my X10 devices and switches at home).
The Firecracker is a DB9 serial and I was wondering what type of connections (from the cape connectors?) do I need in order to use them as a serial port and connect them to a DB9 plug.

Thanks!
Gil.

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adafruit_support_rick
 
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Joined: Tue Mar 15, 2011 11:42 am

Re: Connecting a DB9 serial to BBB

Post by adafruit_support_rick »

You need to convert from RS232C serial to TTL serial. the voltage levels are considerably different, and RS232C serial would toast your BBB.
Something like this ought to work for you:
https://www.adafruit.com/product/18

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