this tone generator can be used to control your robot. you will need to use the tone decoder for...
This circuit is the electronic emulation of the I Ching, a form of divination originating in...
Have you ever wondered how many different colors can illuminate a LED? One, two or maybe three?...
a low cost, high-speed monolithic analog multiplexer. The system works as follows: Selects a...
The circuit has a "floating" output, i.e., it behaves like an isolated transformer winding, with...
This circuit shows the TP5700 directly interfacing to a low-voltage DTMF generator. VREGt...
ICl is a 555 timer running at about 16 kHz. This IC drives Ql, a TIP146, which produces a 12-V...
The first two are `passive` elements and op-amp is an `active` element. Also: the first two are...
This is the figure simple telephone ring tone generator circuit designed using only a few...
The A2060H is an H-Bridge extension for the Programmable Logic Head ( A2060 ). With the help of...
This project slightly modifies the Google Android sample app called Bluetooth Chat so you can...
The first board was digitally controlled but the actual welding current is analog. This allows...
The R-C twin-tee passive circuit supplies band-reject (notch) filtering to portable applications....
This is a constant current source using a FET. This is the most simple replacement to series...
Voltage Regulators low ability burning IC 78W alternation acclimated in our chart is now so...
The choice of IF is usually determined from availability of filters with desired characteristics....
The Interfacing Bluetooth module with LPC2148 program is very simple and straight forward, which...
This article by Arthur C. Miller was issued on page 88 to 90 in the book "Radio For The Millions"...
Shown for the human biological signals preamplifier circuit. In the medical equipment often need...