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Computer Speaker Reflex Receiver - Here is a version built into a
surplus computer speaker using an LM386 audio amplifier IC. The circuit is built
onto a little piece of phenolic perfboard that is secured by wedging the edges
of the perfboard into a couple of bifurcated standoffs. The on-off switch is
part of the volume control which is mounted next to the tuning capacitor. The
loopstick antenna is.... (electronic design added 6/07) |
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Computer to TV Adapter - Simple adapter to connect an old computer
with CGA video graphics card to any TV…. |
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Computerize Your Room/Home (Aaron Cake) - So you've read about my
Computerized Room or have seen those nifty home automation products
advertised in the back of electronics magazines? Or perhaps someone you know has
done something similar. At any rate, you have decided to try it yourself. The
first thing I will say, however is that it is not cheap. You will first
need a computer, but since your reading this, I assume that you already have
that taken care of. Second, you will have to buy about 20 IC's and a very
expensive ISA experimenters prototyping board. These boards cost anywhere from
$16 to $45, and can be purchased from your local electronics store or from
Jameco Electronics (See Where To Get Parts). They have a fairly wide selection.
Buy the 8 bit version, the 16 bit varsion is not needed for this project....
[Aaron Cake] |
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Computerized Infrared Remote - control your stereo, TV and VCR from
Windows, includes schematic and software (added 4/02) |
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Configurable logic gates’ Schmitt inputs make versatile monostables -
5/25/06 EDN Design Ideas You can assemble a pulse-generation circuit
from a simple Schmitt-input AND gate plus a resistor-capacitor timing network.
However, if you need a logic function that’s not a standard catalog item, you
need a Schmitt-input gate or inverter....PDF has several circuits, you will need
to scroll to find this one.... [Design Idea by Glenn Chenier, Allen, TX] |
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Connect IEEE 488 devices to parallel Port - 07/20/95 EDN-Design
Ideas:....[Design Idea added 11/05] EDN is migrating links. This link is not
verified. Google the "title" EDN for new link. |
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Connect Other Circuits to PC Joystick Port - (schematic / circuit
(added (6/03) |
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Connect Two Cd Rom Drives to One Soundcard - Connect your PIC devices
on a shared network, and they can communicate to each other and share
information. You can control them all by any unit on the network…..(design added
05/09) |
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Connect Your MicroControllers Into a Network - Connect your PIC
devices on a shared network, and they can communicate to each other and share
information. You can control them all by any unit on the network….. [Peter
Jakab, Electrical Engineer, Engineer of Informatics] |
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Connecting Dump Terminal - Some applications may not need user display
and key interface, dump terminal is an alternative way for program setting,
displaying user interfacing command.Debugging, dump terminal connects with
serial port, use only 2-i/o pin, P3.0 for Rxd and P3.1 for Txd. Any computers
that has serial port and emulates as a dump terminal....(circuit added 7/02)
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Connecting MiniLOGGER with Easy-Server V0.9 - Run Easy-Server V0.9 on PC
connected to internet gateway enabling remote access the MiniLOGGER.
(circuit added 09/09) |
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Connecting Sega 3D Glasses to a PC Serial Port - (electronic circuit
added 1/03) |
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Connecting the MCP2150 to the Psion Operating System - Microchip
Application Note Published 8-Jun-01 (app note added 2/06) |
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Connecting the MCP2150 to the Windows CE® Operating System - Microchip
Application Note Published 30-May-01 (app note added 2/06) |
