by Dan East » Sep 24, 2001 @ 9:55pm
Well, if you're talking about step-by-step on physically how to do it, then that's not too difficult. The third picture on that page is a template for etching a Printed Circuit Board. Basically that pattern is placed on a "blank" solid copper coated circuit board using a special magic marker. The board is then bathed in acid, which dissolves all the copper not covered by the marker. You left with a perfectly etched board ready for use. You then use a very small drill-bit to place holes where indicated on the template. A quick search revealed this . All the components, including a kit to etch circuit boards, can be acquired from Radio Shack.<br><br>It looks like most of the components are surface mount, so they don't require holes. To me the circuit looks a little more complex than it need be, considering it is simply retransmitting the exact pulses received by the IR transceiver. I would think it would only really require a transistor to do the switching, and perhaps a capacitor to filter and a resistor to adjust output voltage to the IR LED. In other words the circuit could be entirely analog.<br>The design is also much larger than it need be, but it appears it is designed around 2 AAA batteries. Smaller lithium batteries could be used, but the battery life would be shorter.<br><br>Dan East
Infrared Booster
