Mercury Switches & Serial Transfer

Aug 18, 2003 5 Replies

Hi,



Does anyone know of a chip that can read a number of parallel bits and transfer them serially?



I'm trying to detect the state of a number of mercury tilt-switches then send the data to the COM port. I suppose I could design it from scratch using gates but this would be silly if a chip with this capability already existed...



regards, -Duncan


It's called a UART if you want to use the serial port. Or, you could use shift registers.

Cheers!

Chip Shults My robotics, space and CGI web page -

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Much thanks & appreciation!

-Duncan

Using gates, the cost to you will be $5.

Use a PIC and the cost is $1-50.

Im not sure if you know already but if you use the parallel port (LPT1) you can read the mercury switches directly without adding extra ICs.

Yeah thanks but I'm lazy, I don't want to have to unplug my printer & scanner :-)

-Duncan

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