Computer_Cables
Casio QV 200 Digital Camera Cable: Lose your cable? Build it yourself and save $29. Fits many QV models.
Centronics port generates narrow pulse widths:
08/02/2001 EDN
- Design Ideas / Variable-pulse-width signals are useful in
control circuitry for positioning and holding purposes in
robotics and power electronics. Frequently, the need arises for
pulses with width less than 1 msec. Delays less than 1 msec are
usually not available in most programming languages, so
generating such pulses can be a problem..
Drawing Power From a PC Serial Port: This circuits derives fairly low power, (mA at5V) from a RS-232 serial connection. (NOTE: ASCII drawing)
LM1823High Quality T Volt Video I.F. Amplifier and Synchronous Detector for Cable Receivers: National Semiconductor Application Notes,09 Apr1996
Low Voltage Powers ParallelPort Interface :
06/24/02 Electronic Design -
Ideas for Design / For portable-sensing and data- acquisition
applications, a laptop computer and its parallel port (LPT) make
good bedfellows. Yet in the effort to extend battery life, many
microprocessors and entire systems operate with logic levels
down to 1.8 V. The...
RS232C Serial Port Scans Remote Keypad: 12/04/97 EDN-Design Ideas
Simple method tests cables:
10/17/2002 EDN
- Design Ideas / Engineers have long known how to test a cable
for continuity by simply connecting all conductors in series and
checking with an ohmmeter. This method is sometimes impractical,
however, because it cannot check for short circuits. The method
shown in Figure 1 solves the short-circuit problem. Connecting
LED indicators at each shorting loop provides a visual
indication..
Thermocouple Interfaces to Serial Port: 11/09/95 EDN-Design Ideas
X Y Keypad uses ?C`s Serial Port: 10/10/96 EDN-Design Ideas
