Electrofriends

Interfacing 7-segment display using 7447 decoder

by Ranjith | August 17th, 2009.
Interfacing 7-segment display using 7447 decoder

The Light Emitting Diode (LED), finds its place in many applications in this modern electronic fields. One of them is the Seven Segment Display. Seven-segment displays contains the arrangement of the LEDs in “Eight” (8) passion, and a Dot (.) with a common electrode, lead (Anode or Cathode). The purpose of arranging it in that [...]

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Digital IC Tester

by Ranjith | November 20th, 2008.
Digital IC Tester

Unlike the IC testers available in the market today which are usually expensive, this IC tester is affordable and user-friendly. This IC tester is constructed using 8951 microcontroller along with a keyboard and a display unit. It can test digital ICs having a maximum of 24 pins.

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