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Recent content by Moustafa

  1. M

    does infra red leds safe for human eye?

    dear all i wanted to make ir vision camera so i wanted to know if ir leds are safe for human eye before i make the camera? best regards Moustafa
  2. M

    how to make a clock sircuit to Cmos Image sensor

    Dear all, I want to make a camera system comosed of a CMOS image sensor and a Microcontroller , and i want to add a circuit to give it the clock? there is one pin for the clock? also how to synchronize the sensor and the micro controller. thanks in advance Moustafa
  3. M

    help: surface mount components

    dear all I live in Egypt ,can anyone till me a good source for the surface mount resistor, capacitor, inductors which i can buy them from the internet thanks in advane moustafa
  4. M

    surface mount Passive components

    I live in Egypt ,can anyone till me a good source for the surface mount resistor, capacitor, inductors which i can buy them from the internet thanks in advane moustafa
  5. M

    PIC16F877A :serial communication problem

    serial communication problem with pic16f877a thanks i checked the connection again and i know the problem , it was the serial cable connection : i use the male pin cnfiguration insted of the female to know the RX,TX,.. about the compiler i saw the generated assembly and it does that check...
  6. M

    PIC16F877A :serial communication problem

    pic16f877a serial it is microC from a compay callled mikroElektronika
  7. M

    PIC16F877A :serial communication problem

    pic16f877a serial communication dear all I am using the pic 16f877a to make serial comm. with the PC via RS232 also i use MicroC c-compiler and the code as follows when i tried the hyperterminal it does not receive any thing from PIC the program is simple : send character from computer to PIC...
  8. M

    PIC16F877A : bidirectional Level shifter and I2C

    can i use a voltage divider circuit to do that ?
  9. M

    What's cheaper CCD image sensor or CMOS sensor with 2 megapixels?

    Re: ccd or cmos camera you can the cmos image sensor modules from ebay also there is a good module called CMU which uses CMOS image sensor module https://www.cs.cmu.edu/~cmucam2/ , read the documentation they are mentioning the components and the circuit.
  10. M

    PIC16F877A : bidirectional Level shifter and I2C

    Dear all, I am using PIC16F877A and want to connect to another device using I2C. can i make a simple voltage divider to make level shifter from 5volt to 3.3volt or i have to make a nother circuit? I will use I2C to read and write so the level shifter should be bidirectional. and can any one tell...
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