matrix

Matrix scankey 3×4 for Lcd 2 line For CSS Compiler

#include <16F877.h> #device adc=8 #FUSES NOWDT ,XT #use delay(clock=4000000) char const s[10]={‘0′,’1′,’2′,’3′,’4′,’5′,’6′,’7′,’8′,’9’}; void init_mcu (void); void display (void); void display1 (void); void calculate (void); void hex_bcd2(int8 k); /*——-define keypad————*/ #define row0 pin_b0 // input #define row1 pin_b1 // input #define row2 pin_b2 // input #define row3 pin_b3 // input #define col0 pin_b4 // output #define […]

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Lissajous Figures on 8X8 Led Matrix

Lissajous Figures on 8X8 Led Matrix

A point of light oscillating in 2 perpendicular axes draws a pattern named “Lissajous Figure” (1857) or “Bowditch Curve” (1815). Patterns range from simple to complex depending on the frequency ratio and phase of the 2 axes.A 1:1 ratio with 0 phase difference draws a straight line at 45° angle. In this project the frequency ratio of the 2

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AT89C51 5X7 LED MATRIX APPLICATION

AT89C51 5X7 LED MATRIX APPLICATION

Circuit Operation: This practice of over 5 × 7 matrix LED A… Z characters are intended to be created. Provision of characters in source code LEDs (table) was created and when necessary with the help of a function is… Electronics Projects, AT89C51 5X7 LED Matrix Application “8051 example, avr project, keil example, microcontroller projects, Circuit Operation: This practice

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Germany takes a step to imaging LED matrix headlamps

Germany takes a step to imaging LED matrix headlamps

Arbitrary-beam headlights are another step closer, claims a German consortium. Cars already exist in which cameras shape the headlight beam around other road users – maximising light on the road while minimising dazzle. These adaptive headlamps are based on forward-facing cameras and shaped mechanical shutters within the headlight. With the advent of LEDs, headlamp developers

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LED Matrix Backpack schematic

LED Matrix Backpack

I had purchased some huge (2″) 5×7 matrix a while ago, as part of my led sensor research. They’ve basically been banging around the lab since, getting pins bent and such. So this past weekend, I decided to put them to some other use. Their pin layout is sort of weird, it doesn’t match up

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