[ale] Z-Wave or ZigBee
Chris Fowler
cfowler at outpostsentinel.com
Wed Aug 5 20:38:40 EDT 2015
----- Original Message -----
> From: "Alex Carver" <agcarver+ale at acarver.net>
> To: ale at ale.org
> Sent: Wednesday, August 5, 2015 8:03:17 PM
> Subject: Re: [ale] Z-Wave or ZigBee
> You're thinking too hard. Zigbee is agnostic to OS, it's too low level.
> All it cares about is slinging bits around. It talks to a computer
> with two wires, TX and RX (a serial port). If your OS can handle a
> serial port it can speak Zigbee. Keep in mind that the physical Zigbee
> module uses TTL data not RS232 levels. If you plug into anything other
> than the digital I/O of a microcontroller (Arduino, Raspi IO pins, PIC,
> etc.) then you need a level converter at minimum (and a full UART if you
> want to use a USB connection). Other than that you send appropriately
> formatted binary messages to the Zigbee controller module and the
> network (and end device of interest) does its thing. You then get a
> binary message in response to your initial message (depending on the
> message). It's up to you to encode and decode those messages. The spec
> is open and people have built libraries for doing it. You could also
> write your own library if you wanted to really understand Zigbee and,
> more importantly, to understand and control your expectations on what
> will happen during any communication.
I speak fluent RS232 as well as TTL. Need TTL -> USB? I have many USB->TTL cables. :)
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