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Parallel Port PIC Programmer with ICP - This programmer is built
for Free Windows Software called WinPicProg developed by Nigel Goodwin and
uses a 74HC14 instead of 74LS05 used on other parallel port programmers.
….(electronic schematic added 11/08)
Parallel port replaces embedded µC - 12/31/69 EDN-Design Ideas
Many applications use an embedded processor, which has certain needs:
software, RAM, ROM, board space, and others. Frequently,....[File contains
multiple circuits. Scroll to find this one.]....Design Idea by Eli
Kohav and Leonid Grossman, ECI Telecom, Petah-Tikva, Israel] [Design Idea by
Eli Kohav and Leonid Grossman, ECI Telecom, Petah-Tikva, Israel]
PBUS, multi-drop RS422/485-type network for interconnecting PIC nodes - PBUS
is an RS485-like multi-drop bus for interconnecting PIC and other
microcontroller-driven devices. Protocol and software is written by Jap. Just include
a separate pbus library file into your project and add your command handlers for the
specific device in a few lines....[Peter Jakab, Electrical Engineer, Engineer of
Informatics]
PC 12V Adapter - This circuit provides a short circuit protected power
supply from PC 12V supply voltage. This is particularly handy when working with
PC interfacing projects. Designed by M Asim Khan from Pakistan. ….(electronic
schematic added 06/09)
Perform timing for microcontrollers without using timers - 22-Jan-09 Issue
of EDN Use the I/O "interrupt-on-change" feature to implement a
medium-precision, long-period timer with low additional cost....[Design Idea by
Ganeshkumar Krishnamoorthy, NTERA Ltd, Dublin, Ireland]
