----- Original Message ----- 
From: "Jinx" <joecolquitt@clear.net.nz>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Tuesday, February 14, 2006 10:44 AM
Subject: Re: [EE] Speedometer for the model railroad - RF or IR?


> How much room have you got in a 1:160 wagon ? I guessed about
> 50-60mm x 20mm ?? I'd heard 2mm = 1ft. There are UHF data
> modules that are small and cheap. For example the TX434A (14mm
> square) and RX434A about half-way down this page
>
> http://www.oatleyelectronics.com/whatsnew.html
>
> I'm using the 433MHz version for a data link, great with a decent
> antenna


The room in this wagon is 86 x 23 x 32 mm (length x width x height) (1 inch
= 25.4mm) ~3 1/3 x  ~ 1 x 1 1/4 in inches, but if necessary I can change to
a 6 axle wagon with 125 x 23 x 32 mm ( ~ 5 inches long).

Thank you for the link.

regards

Enrico

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