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Volt Meter with Video Output - Video-DVM is a very cheap DVM that shows how an output as complex as a video composite signal
can be generated entirely in software: two I/O pins and three resistors are all the hardware required.
Connected to any TV set it displays voltages, included max and min peaks, using both giant digits and an
analog bar-display. A serial data output for computer data logging is provided, too. . . [Alberto Ricci
Bitto]
Voltage Indicator - The solidstate voltmeter circuit described here indicates the mains voltage with a
resolution that is comparable to that of a general-purpose analogue voltmeter. The status of the mains
voltage is available in the form of an LED bar graph. . .
Voltage Mode Control IC/AN-4128 - Fairchild App Note - . . .
Voltage
Regulator goes Digital - 11/24/99 EDN Design Idea
Power consumption and failing batteries are key issues in battery-operated applications. Features in the new
generation of series voltage regulators address these concerns. For example, National Semiconductor's LP2951
micropower . . . [by Chuck Wojslaw, Xicor Inc, Milpitas, CA]
Voltmeter Monitors TTL Supplies - Application Note. . . [National Semiconductor]
Volume Control - based on DS1669 Digital Pot IC. . . [Design by Aaron Cake]
Volume Control (Rod Elliott) - A volume control using a linear pot that is much better than most log pots. . . [Rod Elliott
(ESP)]
Volume
Control has Log Taper - 11-Apr-02 EDN Design Idea
Digital potentiometers provide a compact and convenient way to attenuate audio-amplifier signals. However,
most such potentiometers suffer from at least one flaw a nonlogarithmic step increment. To avoid this problem,
a user must. . . [by Doug Farrar, Los Altos, CA]
Wide Dynamic Range A/D Converters Pave the Way for Wideband Digital Radio
Receivers - 11/07/96 EDN Design Feature- With recent
advances in data conversion, mixers, and DSPs, digital radios are becoming more commonplace. But what are
digital radios, how do they work, and how do they differ from analog radios?. . . [by Brad Brannon, Analog
Devices Inc]
Wireless Home Security Implementing KEELOQ® and the PICmicro® Microcontroller - AN714 - Technology Inc. . . [Microchip App Note - last updated on 9-Jun-11]
Wireless
Local Network for Palmpilot Large PDF - Not English. .
. [Jan Beutel, Tobias Bösch]
X-10 Home Automation Using the PIC16F877A - AN236 - Technology Inc. . . [Microchip App Note - last updated on 9-Apr-10]
Yo-Yo Device - The original yoyo was equipped with 2 LEDs that lit up when device was spinning. I decided to
add a micro to give it some extra pizzazz. The trick here is to make unit work without a power switch. The
mercury switch is positioned so that it supplies power when unit is spinning. After about 20 seconds, PIC
shuts down in sleep modes, . . . [by Luhan Monat-Mesa Arizona]
Zero-Delay Bus Switches - App Note - # 001. . . [Pericom Semiconductor]
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