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Microchip PIC14 - Engineers of my generation in the UK will remember the Science of Cambridge Mk14. Intended
to be Sir Clive Sinclair’s first home computer kit for the general public, it served to train a generation of
electronics engineers in how to program microprocessors. The Mk14 was based on, and virtually identical to,
the ‘Introkit’ that was available in America at around the same time. It had a 512 byte monitor ROM, 256
bytes of RAM, an eight or nine digit LED display with bubble magnifiers, and a notoriously bad twenty key
keyboard. . . [Karen's Microprocessor Projects]
Microchip Stack for the Zigbee Protocol - Application Note Published 5-May-05. . . [Microchip]
Microcontroller becomes multifunctional - 10/25/01 EDN Design Idea A microcontroller, by default, can execute only one program at a
time. What do you do if, in a given project, you need to perform than one operation at a time?
Add microcontrollers to the design? In certain cases it's unnecessary. Co. . . [by Abel Raynus, Armatron
International, Melrose, MA]
Microcontroller Controls Analog Phase Shifter - 06/12/08 EDN Design Idea By using a digital potentiometer in a phase-shift circuit, a
microcontroller can precisely control phase shift. . . [by Nick Ierfino, IGS Technologies, Montreal, PQ,
Canada]
Microcontroller controls multichemistry battery charger - 09/28/00 EDN Design Idea Figure 1 is a generalized block diagram of a multichemistry
battery charger. A COP8ACC5 µC handles its key charging features. The µC is available in a 20-pin (15 I/O
pins] SOIC or a 28-pin (23 I/O pins] SOIC/DIP. It contains 4 kbit. . . [by Kelly Flaherty, National
Semiconductor, Santa Clara, CA]
Microcontroller Detects Pulses - 07/24/08 EDN Design
Idea A microcontroller detects output pulses in a device under test. . . [by Abel Raynus, Armatron
International, Malden, MA]
Microcontroller Directs Supply Sequencing and Control - 05/29/03 EDN Design Idea Obtain higher voltage from a buck regulator - With the
proliferation of dual-voltage architectures and multiprocessor boards, even simple applications can require
several processor voltage rails. With each processor having its own . . . [by Joe DiBartolomeo, Texas
Instruments, Dallas, TX]
Microcontroller discerns addresses in RS-485 systems - 11/08/01 EDN Design Idea One of the many benefits of using the RS-485 data-interface
system, unlike the RS-232 system, is its ability to implement multidrop networks. Such networks usually carry
9-bit data words, in which the ninth (parity] bit identifies ea. . . [by Nigel Brooke and Ted Salazar, Maxim
Integrated Products, Sunnyvale, CA]
Microcontroller Displays Multiple Chart or Oscilloscope Timing Ticks - 05/01/08 EDN Design Idea A crystal controlled microcontroller generates precise timing
ticks. . . [by William Grill, Honeywell, Lenexa, KS]
Microcontroller drives 20 LEDs - 09/27/07 EDN Design Idea Dhananjay V Gadre of the Netaji Subhas Institute of Technology
in New Delhi, India, details and demonstrates the use of "Charlieplexing" to drive 20 LEDs using six
available I/O pins on an 8-pin microcontroller. [Video Design Idea ]. . . [by Dhananjay V Gadre of the
Netaji Subhas Institute of Technology in New Delhi, India]
Microcontroller drives H bridge to power a permanent-magnet DC motor - 03/15/07 EDN Design Idea Improved H-bridge requires only two driver signals. . . [by Luca
Bruno, ITIS Hensemberger Monza, Lissone, Italy]
Microcontroller Drives LCD With Just One Wire - 12/03/07 EDN Design Idea A Microchip PIC10F family microcontroller sparks an HD44780 LCD
using a single I/O pin. . . [by Noureddine Benabadji, University of Sciences and Technology, Oran, Algeria]
Microcontroller drives logarithmic/linear dot/bar 20-LED display - 01/18/07 EDN Design Idea Do-it-yourself analog-to-LM3914 display driver offers user
programmability. . . [by Dhananjay V Gadre and Anurag Chugh, Netaji Subhas Institute of Technology, New
Delhi, India]
Microcontroller emulates numerically controlled oscillator - 02/21/02 EDN Design Idea Microcontrollers commonly add intelligence or digital functions
to products, but they can also provide a variety of analog signals. An 18-pin PIC 16C54 microcontroller,
combined with an inexpensive, 8-bit DAC and a simple lowpass f. . . [by Tom Napier, North Wales, PA]
Microcontroller functions as voltmeter - 10-May-07 EDN Design Idea PIC microcontroller and FETs enable a four-digit voltmeter. . .
[by Noureddine Benabadji, University of Sciences and Technology, Oran, Algeria]
Microcontroller Inputs Parallel Data Using One Pin - 10/02/08 EDN Design Idea Clever use of pulses of various time constants allows a
microcontroller to input a slowly changing serial pulse stream using a single I/O pin. . . [by Rex Niven,
Forty Trout Electronics, Eltham, Victoria, Australia]
MicroController Interface to the ADC12038
Families - Application Note. . . [National
Semiconductor]
Microcontroller makes effective frequency counter - 11/23/00 EDN Design Idea Figure 1 shows an efficient and cost-effective frequency counter
using an Atmel 89C2051 mC (Reference 1). The design can use any mC of the 8051 family. The circuit counts
frequency and sends the count to a PC via the serial port . . . [by Fazal Pathan, Physical Research
Laboratory Ahmedabad, India]
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