EngineersGarage

  • Engineers Garage Main Site
  • Visit our active EE Forums
    • EDABoard.com
    • Electro-Tech-Online
  • Projects & Tutorials
    • Circuits
    • Electronic Projects
    • Tutorials
    • Components
  • Digi-Key Store
    • Cables, Wires
    • Connectors, Interconnect
    • Discrete
    • Electromechanical
    • Embedded Computers
    • Enclosures, Hardware, Office
    • Integrated Circuits (ICs)
    • Isolators
    • LED/Optoelectronics
    • Passive
    • Power, Circuit Protection
    • Programmers
    • RF, Wireless
    • Semiconductors
    • Sensors, Transducers
    • Test Products
    • Tools
  • Advertise
You are here: Home / Replies / CODING:

CODING:

|

Projects › Projects › Program to make a bidirectional visitor counter using IR sensor › CODING:

October 17, 2015 at 10:02 am #13399
ashish gaikwad
Participant

CODING:
// Program to make a bidirectional visitor counter using IR sensor #include #define msec 1unsigned int num=0;sbit dig_ctrl_4=P1^3; //declare the control pins of seven segmentssbit dig_ctrl_3=P1^2;sbit dig_ctrl_2=P1^1;sbit dig_ctrl_1=P1^0;unsigned intdigi_val[10]={0x40,0xF9,0x24,0x30,0x19,0x12,0x02,0xF8,0x00,0x10};unsigned int dig_1,dig_2,dig_3,dig_4,test=0;unsigned char dig_disp=0;sbit up=P3^5; //up pin to make counter count upsbit down=P3^6; //down pin to make counter countdown

void init() // to initialize the output pins and Timer0{up=down=1;dig_ctrl_4 = 0;dig_ctrl_3 = 0;dig_ctrl_2 = 0;dig_ctrl_1 = 0;TMOD=0x01;TL0=0xf6;TH0=0xFf;IE=0x82;TR0=1;}void delay() //To provide a small time delay{TMOD=0x01;TL0=0x36;TH0=0xF6;

TR0=1;while(TF0==0);TR0=0;TF0=0;}void display() interrupt 1 // Function to display thedigits on seven segment. For more details refer sevensegment multiplexing.{TL0=0x36;TH0=0xf6;P2=0xFF;dig_ctrl_1 = dig_ctrl_3 = dig_ctrl_2 = dig_ctrl_4 = 0;dig_disp++;dig_disp=dig_disp%4;switch(dig_disp){case 0:

P2= digi_val[dig_1];dig_ctrl_1 = 1;break;case 1:P2= digi_val[dig_2];dig_ctrl_2 = 1;break;case 2:P2= digi_val[dig_3];dig_ctrl_3 = 1;break;case 3:P2= digi_val[dig_4];dig_ctrl_4 = 1;break;}

RSS Recent Posts

  • Chinese Tarrifs – 104%!?! May 21, 2025
  • An Update On Tarrifs May 21, 2025
  • Tariff Updates from JLCPCB as of Today May 21, 2025
  • Solar lighting motion detector May 21, 2025
  • Telegram Based Alarm - Sensor cable protection May 20, 2025

Stay Up To Date

Newsletter Signup
EngineersGarage

Copyright © 2025 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising | About Us

Search Engineers Garage

  • Engineers Garage Main Site
  • Visit our active EE Forums
    • EDABoard.com
    • Electro-Tech-Online
  • Projects & Tutorials
    • Circuits
    • Electronic Projects
    • Tutorials
    • Components
  • Digi-Key Store
    • Cables, Wires
    • Connectors, Interconnect
    • Discrete
    • Electromechanical
    • Embedded Computers
    • Enclosures, Hardware, Office
    • Integrated Circuits (ICs)
    • Isolators
    • LED/Optoelectronics
    • Passive
    • Power, Circuit Protection
    • Programmers
    • RF, Wireless
    • Semiconductors
    • Sensors, Transducers
    • Test Products
    • Tools
  • Advertise