Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Recent content by MANO.5

  1. M

    [SOLVED] Need Help on designing 4x3 matrix ALPHABETICAL KEYPAD using 8051

    hai Venkadesh, waiting for your reply...............................................
  2. M

    [SOLVED] Need Help on designing 4x3 matrix ALPHABETICAL KEYPAD using 8051

    Hi, No change in output. it will show like "b a b y" and if time=0 before pressing any other key it will show some random values.... This is the proteus design and hex file....
  3. M

    [SOLVED] Need Help on designing 4x3 matrix ALPHABETICAL KEYPAD using 8051

    Hai. this code is workingwhile(1) { p = c; time=15000; //while(!(c = Read_Keypad()) && time--); while( ( !(c = Read_Keypad()) ) && time--); if (time == 0) pos++; if(p == c && c != 14 && c != 15) { if(pos>15) { j=pos-16...
  4. M

    [SOLVED] Need Help on designing 4x3 matrix ALPHABETICAL KEYPAD using 8051

    Hai, No change in output.............
  5. M

    [SOLVED] Need Help on designing 4x3 matrix ALPHABETICAL KEYPAD using 8051

    Hai reduce the time value [time=5000000]; to [time=2];But no change.This is the hex file :0F04DA00D2A3E4FFD2A4C2A40FEFC3940A40F54B :0104E90022F0 :09051600D2A3D2A4C2A3C2A42204 :09051F00C2A4C2A3D2A4D2A322FB :1003EF00AB07AA06C2D71205167FA0120404AF02EC :0503FF00120404AF032D...
  6. M

    [SOLVED] Need Help on designing 4x3 matrix ALPHABETICAL KEYPAD using 8051

    Hai venkatesh, There is small problem can't type like 'baby'.need something time counter .If same key is pressed within 10 seconds and if not increase pos value .Please some help............
  7. M

    [SOLVED] Need Help on designing 4x3 matrix ALPHABETICAL KEYPAD using 8051

    Hai Venkatesh, Thank you for your help.it was working now.........................
  8. M

    [SOLVED] Need Help on designing 4x3 matrix ALPHABETICAL KEYPAD using 8051

    Hai Venkadesh, Thank you so much.Your code is working.I modify the code by adding EEPROM and forward,backspace key .I upload the protes design,HEX code. back space key is not working properly. please help to solve this problem also....
  9. M

    [SOLVED] Need Help on designing 4x3 matrix ALPHABETICAL KEYPAD using 8051

    Hai venkadesh, there is no problem with lcd.it works fine. hex file :1001FF00E4FEEEC39F5011E4FDFC0DBD00010CBCED :08020F0004F8BDFBF50E80EAC6 :0102170022C4 :100218008F90D2A2C2A0C2A17F011201FFC2A22266 :100228008F90D2A2D2A0C2A17F011201FFC2A22246...
  10. M

    [SOLVED] Need Help on designing 4x3 matrix ALPHABETICAL KEYPAD using 8051

    Hai venkatesh, thank you for your reply..what i am trying was after getting pressed key value i add one more function set_key(c,i) in set_key function c was key value and i was number of times key pressed .In set key function using switch case key value is displayed. The...
  11. M

    [SOLVED] Need Help on designing 4x3 matrix ALPHABETICAL KEYPAD using 8051

    i want to design a ALPHABETICAL KEYPAD for one of my project that need to store some name on eeprom.When i was searching on web i didn't get anything.The following code is just numerical keypad ,it count and display how many times the key is pressed.I try to alter this code for ALPHABETICAL...
  12. M

    [51] Programming DS89C4x0 serial port in C

    Hai djc i give up using DS89C4x0 due to it's high price compared to AT89C51 series microcontrollers. It is possible to use digital switch cd4052 instead of DS89C4x0.You can access two serial ports by changing A & B. I attached circuit diagram here.For more details you can view the...
  13. M

    [51] problem in Generating random nmber using rand() function in embedded c

    When i was simulating this program in proteus it didn't displaying anything...giving same number is not problem ..the problem is not displaying anything.....
  14. M

    [51] problem in Generating random nmber using rand() function in embedded c

    on different pc it was compiled without any error or warnings.But no output in lcd..so please somebody check is there any mistakes in program...........
  15. M

    [51] how to send number using ht12e and receive using ht12d

    Hai my project was measuring vehicle speed using gps module and send that value to nearest controller using ht12e and receive using ht12d.encoder has 4 input data pins.so i decide to split the 4 digit and send each digit seperately.But in receiver side i don't know how to receive and made...
See more

Part and Inventory Search

Back
Top