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Mains Manager - Very often we forget to switch off the peripherals like monitor, scanner, and printer while
switching off our PC. The problem is that there are separate power switches to turn the peripherals off.
Normally, the peripherals are connected to a single of those four-way trailing sockets that are plugged into a
single wall socket. . . . [SHIBASHISH PATEL]
Mains-operated Capacitive Sensor - Easily adjustable, high sensitivity circuit; Minimum parts counting. . . [Flavio
Dellepiane's web site]
Maintain precise timing with PC's speaker logic - 11-Jul-02 EDN Design Idea Precise timing control is paramount in data acquisition and
analysis and especially in digital-signal processing. The easiest way of maintaining timing control in a PC is to
use delay loops. The disadvantage of this implementation . . . [by DS Oberoi, CEDTI, and Harinder Dhingra, GCET,
Jammu, India]
Make a printer port EEPROM programmer and dongle - 05/13/04 EDN Design Idea You can easily use a PC's printer port for serial-EEPROM
programming. You can use a device-programmer circuit used to program the MicroWire serial EE-PROM 93CXX (Figure
1). The circuit is so simple that any further simplification se. . . [by GY Xu, XuMicro, Houston, TX]
Make eight-channel measurements through an LPT port - 06/13/02 EDN Design Idea The circuit in Figure 1 represents a simple and cost-effective
way to obtain eight-channel analog-signal acquisition through a PC's LPT port. IC1, a 12-bit, serial-output
MAX187 ADC, operates from a single 5V supply and accepts ana. . . [by J Jayapandian, IGCAR, Tamil Nadu, India]
Make Your Own Single-Side
PCB for Easy-Downloader V1.1 - I am very happy with my
student, Plermjai (his name means feel delighted too) Inchuay (his family name means angel helps him) , who
provides me his page describing how-to-make a single side PCB for the Easy V. 1. 1. So cool! his prototype was
made by hand writing with a pen for making PCB! Available now single side with Protel format. . . . [Wichit
Sirichote, designer]
Make Your Own Single-Side PCB for
Easy-Downloader V2.0 - This work was contributed by Bruno
Macio from Brazil, a single-side PCB for Easy II with MAX232C for RS232 level converter. For those who use
Portuguese may ask him directly. . . . [Wichit Sirichote, designer]
Mass storage and printer interface for the
FX-700P calculator - . . .
Mass Storage Deviceusing a PIC MCU - Application Note Published 30-Aug-05. . . [Microchip]
Mass Storage Hard Disk (sb-113) - Application Note. . . [National Semiconductor]
Mathematical Manipulation
of Pure Sine Wave Inverter using ATMEL 89S2051 - Didik
Rostyono and Harsono Hadi explain how to produce the sinewave output inverter using the ATMEL microcontroller!
(available only in pdf file (274kB) , click the link to download it). . . [Wichit Sirichote, designer]
MAX555 PLCC to TQFP Printed
Circuit Board PC B Layout Guidelines - App Note/ 1120 /
Mar-09. . . [Maxim Integrated]
MCS-51 endows MicroLan-like
protocol to UARTs - 05/07/98 EDN Design Idea (Page
includes several designs, scroll to find this one) mCs such as the 8051 and 8096 and UARTs such as the 82510
provide hardware support for a multiprocessor asynchronous serial-communication protocol (MicroLan). This feature
is useful in applications in which a number of processors interconnected in a multipoint configuration jointly
perform a task, with a master processor controlling slaves by sending data or commands in a selective manner
(Figure 1). . . . [by SK Shenoy, NPOL, Kochi, India]
MCU_PG.zip - New Program and firmware for SUNROM Programmer by Majid Mahmoud Pour Eftekhari Foumani from
Iran. . . . [Wichit Sirichote, designer]
Measuring Ethernet Tap Capacitance - Application Note . . . [National Semiconductor]
Method & Advantages of Synchronizing Two
RC5051 Converters/ AB-13 - Fairchild App Note. . .
Method provides automatic machine shutdown - 05/27/04 EDN
Design Idea Some machines need to run for long periods and therefore may finish their work in the middle of the
night or during the weekend. For the time remaining, until the operator returns, the machines stay idle,
uselessly consuming power. . . . [by Jean-Bernard Guiot, Mulhouse, France]
Method provides fast, glitch-free isolation of I2C and SMBus signals - 06/24/04 EDN Design Idea I2C is a popular serial protocol for power controllers, ADCs and
DACs, EEPROMs, and other devices. In certain data-acquisition and power-control situations, you must isolate the
I2C master from one orslave devices for noise, ground. . . [by Mark Thoren, Linear Technology Corp, Milpitas,
CA]
Micro-C Library Extension for
DS1202 - Real-time Clock A Library extension and example
circuit to interface DS1202 with 8051 chip. . . . [Wichit Sirichote, designer]
Microchip TCP/IP Stack Application Note - Application Note Published 6-Mar-02. . . [Microchip]
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