Search found 125 matches

by Tommy volts
Fri Feb 14, 2003 7:18 am
Forum: General Discussion
Topic: Morse Code w/ PIC1684F84A
Replies: 2
Views: 754

Morse Code w/ PIC1684F84A

Morse w/ PIC16F84A <p>Last night I “wrote” (copied and modified from “Easy PIC’n for Beginners”) a routine for my PIC. It didn’t work. I am trying to blink out a simple two word Morse code signal on an LED. I need to vary the on and off time for dits and das and pauses. The problem is the Delay subr...
by Tommy volts
Tue Jan 21, 2003 11:07 am
Forum: General Discussion
Topic: Computer Clock
Replies: 4
Views: 945

Computer Clock

I pulled a small clock off of an old computer my 9 year old son found in a garbage pile.<p>The clock is about 1/4" wide by 1/2" long, bright metal case and has has 4 pins. It is marked: TXC 60.000MHZ 850NC 9435.<p>Is there any way I can interact with this component? I would like to get some kind of ...
by Tommy volts
Wed Dec 11, 2002 8:38 am
Forum: General Discussion
Topic: polygraph and cardiograph to A/D
Replies: 4
Views: 910

Re: polygraph and cardiograph to A/D

<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by Chris Smith: Long Coils of fine copper wire wound like a transformer over ferrite cores, and a clean op amp with gain of 100 or so should be able to read brain waves fairly well. <p>Heart beats can...
by Tommy volts
Tue Dec 10, 2002 3:35 pm
Forum: General Discussion
Topic: polygraph and cardiograph to A/D
Replies: 4
Views: 910

polygraph and cardiograph to A/D

I use the DRDAQ A/D converter with PC oscilloscope software to graph voltage traces etc on my PC. I would like to graph heartbeat and brain waves. Does anyone no a way to get brain waves and or heart beats into an electrical signal that I can plug into my DRDAQ? :confused:
by Tommy volts
Tue Oct 29, 2002 1:37 pm
Forum: General Discussion
Topic: Computer Control
Replies: 5
Views: 2388

Computer Control

I need to control (turn off and on ) a set of 6 or so relays with my 386 computer. Is there an inexpensive package (software,controller, and relays) available to do this?