bike computer to PC interface
- From: pete_tomson@xxxxxxxxxxx
- Date: 7 Mar 2007 09:06:32 -0800
Hi All - I found this newsgroup and was wondering if anyone could help
me.
I'd like to connect a magnetic sensor (bicycle computer) directly to
my computer through one of the ports without a power supply.
Basically the reed switch will have a current induced in it so I'm
thinking I'd ideally like the circuit to be passive with minimal
external circuitry.
I have a pic of a basic circuit I found but don't know how it works
and I don't know how to post it. Basically it has a connection to pin
4 through a 4.7kohm resistor a direct connection to pin 6 and a ground
through pin 20.
If you tell me how to post a pic I can show the diagram.
Can anyone make suggestions about circuit design - can I feed the
wires directly into my parallel/serial port?
I'm also trying to write a program in VB6 to read the input, but not
having much luck.
I'd really appreciate any help anyone could give me.
Thanks
Pete
.
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