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Microprocessor Circuits
Page 7b Microprocessors:
#'s A-BC-GH-L M-OPQ-ST-Z Last Updated on:
Monday, October 03, 2011 06:08 PM
Links to electronic circuits, electronic schematics, designs for engineers,
hobbyists, students & inventors:
S-52 Simple MicroController Learning Board - Simple
hardware for beginner to learn 8051 microprocontroller, single side pcd with
ISP loader designed by Prahlad Purohit from India.
Safety-Lock with Telecard as Key - This safety-lock can be work
with up to 8 different telecards (empty or not) as access keys. Each telecard
can be registered or unregistered from the system, by press the
corresponding button.….(Circuit design added 05/09)
Scanmate Audio Activated Recorded -
Add this easy project to your regular scanner or DX'ing apparatus and never
miss action again....[Tony van Roon's circuit]
Scheme implements multiple output ports - 02/16/98 EDN-Design Ideas....In
µP/µC systems, you sometimes need to use many output ports and update all the ports
simultaneously. For instance, in systems that use multiplexing techniques, the output
ports require refreshing for every scanning period. One example is a system of
multiple dot-matrix LEDs....File has many circuits, scroll to find this one....[Design
Idea by W Kurdthongmee, Nakorn Si Thammarat, Thailand]
Scheme Speeds Access to µP's Real Time Clock - 06/04/98 EDN-Design
Ideas.... Amplitude limiters are necessary in many systems, such as radar and FM
receivers, for which the system cannot allow the amplitude of the signal to exceed the
given positive, negative, or both limits. In the circuit in Figure 1, amplifier IC4B's
maximum outputThis file has many circuits, please scroll to find this one....[Design
Idea by Jerzy Chrzaszcz, Warsaw University of Technology, Warsaw, Poland ]
SD Card Reader - SD memory cards, especially the ones under 1GB are cheap,
relatively easy to interface and provide vast amounts of memory for imbedded control….
[Luhan Monat - Mesa Arizona]
Security Keypad - This Electronic Code Lock uses a 12-keys keypad is used to
enter a password and open an electrick lock or any other device with a signal. Uses an
8-pin PIC 12F629. (11/04)
