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Recent content by edmondren_89

  1. E

    Leaf Recognition Based on Venation

    Hi guys, what algorithm do you think it is best to use for future extraction. does anyone have a sample source code ?
  2. E

    Connection for USB to PIC18F4550

    what does the decoupling for?.. by the way do you have the schematic ? Can 4M Hz crystal oscillator be used for 18F4550 ? or should i use 20Mhz
  3. E

    Connection for USB to PIC18F4550

    Hi there, my intention is to connect pc to PIC18F4550, i had already purchased USB cable type A to B, can someone give me the schematic to connect the USB socket to the microcontroller ? you may email to me at edmondren_89@hotmail.com Best regards, Edmond
  4. E

    Who can teach me how to use MM5450?

    LED DRIVER(MM5450) yes i would want to have a look. source code and schematic
  5. E

    help me anyone? please, if you have alredy made

    i am doing the same project. but mine is kinda complicated abit as i am using Hi-Tech c language and using PIC16f877a i am using sony erriscon T630 model. first you would need to know what is AT command then u need to fidn sony erricson cable DRS-11..it is kinda hard to find and u would need...
  6. E

    Who can teach me how to use MM5450?

    LED DRIVER(MM5450) hey guys, i had never used before MM5450. i am trying to use it to drive my 16X40 dual colour LEDs. in the MM5450 datasheet there are u latch pin..does it mean auto latch ? as it has 34 outputs so if i pump in my data and how does it latch? can anyone teach me?.. u can...
  7. E

    moving message display using led matrix

    5x7 Matrix and driver yes u can.. u can use PIC16f877a. actually any control will do
  8. E

    LED MATRIX 16x40 - problem with a scrolling sentence

    Re: LED MATRIX 16x40 or this schematic can also be applied to my project..it is just that change the atmel into PIC16f877a
  9. E

    LED MATRIX 16x40 - problem with a scrolling sentence

    Re: LED MATRIX 16x40 this is my schematic diagram
  10. E

    LED MATRIX 16x40 - problem with a scrolling sentence

    LED MATRIX 16x40 sorry sir..actually i did not even draw my schematic out using any software. i'll base on the source code to connect my leds in my source code as i attach.. PORTB is GND and PORTD is the output/vcc .
  11. E

    LED MATRIX 16x40 - problem with a scrolling sentence

    LED MATRIX 16x40 i need help to have tis project working. first of all i would like to say i am very new in this project. i am using PIC 16f877a with 20Mhz crystal osc. and Hi-Tech C i need to have display a scrolling message. can anyone help me . i know how to display only single character...
  12. E

    SMS DISPLAY SYSTEM using PIC 16f877A with ps/2 keyboard

    interfacing keyboard with pic16f877a i am using Hi-Tech c language. i'm totally new in this stuff. i do know the basic how to flash the leds. i might need some help in the keyboard part. do you have any examples for the keyboard
  13. E

    SMS DISPLAY SYSTEM using PIC 16f877A with ps/2 keyboard

    pic to ps2 keyboard i need help in my final year project! how do i interface an external eeprom to my pic and how do i write the source code? my project is regarding about SMS display system where i have a led matrix(16x40) attach to a handset and it is also attach to the keyboard(ps/2). so...
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