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  1. ronald_sas

    Making DAC with 0808

    Does anyone know how to build the DAC with 0808?? Thx in advace,
  2. ronald_sas

    Image processing in Robot

    I'm getting stuck for a month....coz my lecturer told me to add the filter... i mean that the image must be 'normalized' first before it can be processed.. Image-->Filter-->PC eg. :The light in the indooor room is 5 lamp, so if the camera capture the image in the room that has 10...
  3. ronald_sas

    Image processing in Robot

    What the best method : 1. Single Camera (Monocular) 2. Double Camera (Stereo) to measure distance between mobile robot and obstacles?? (can it possible with camera???) ??? should i capture / sampling the picture(jpeg or bmp) from the video (fps-->frame/second).....i mean the filtering...
  4. ronald_sas

    Image processing in Robot

    Thx a lot.. But i'm still confused about image processing in it.... What algoritm should i use to avoid the barrier (obstacle avoidence)? Bcoz the camera didn't know if the barrier in front if it or not? (only 2D)...... so the next quesion--> how we can measure the distance between camera and...
  5. ronald_sas

    Image processing in Robot

    I want 2 use a web-cam...so the robot can avoid the barrier or wall. Block Diagram: Web Cam-->Microcontroller-->Servo Motor I'am really confused about interfacing....from web-cam to microcontroller..... can anybody help me...... ???
  6. ronald_sas

    Image processing in Robot

    Hi...can anybody help me in my final project... I want to build a tracking robot with image processing censor... I mean this robot can mapping the area... First the robot explore the area...it can sense the wall or barrier with image censor not with IR or ultrasonics... then after it finished...
  7. ronald_sas

    Downloader 89s52 via USB

    i want to design downloader for 89s52 via USB port i'm really confused 'bout thiz  ??? does anyone know how to build it + schematics ??? pls... thx
  8. ronald_sas

    tIMER w/ 74LS04

    Could somebody tell me, how to design timer w/ 74LS02? thx
  9. ronald_sas

    Help....

    Thx...... ;D
  10. ronald_sas

    IC UL2003

    Does anyone know about diz IC UL2003 ? coz i've sometrouble 'bout diz... i've already know the datasheet but i don't understand it .... PS : i want to convert the outport from microcontroller (5V dc) to 12V (DC motor)
  11. ronald_sas

    Help....

    Oh I get it... Can u tell me where the schematics of IR distance / optocoupler ??? Coz  I hav a trouble with the output voltage, the output was variation beetween 0-5 voltage not exactly 0v or 5v....
  12. ronald_sas

    Help....

    Thx, but i don't use ic optocoupler. I means not exactly optocopuler but "distance sensor" which consist LED infrared and phototransistor. I'm really confused.......can i get some tutorial...... pls.... ???
  13. ronald_sas

    Help....

    hi! i'm a newbie here. could u please tell me about optocopler ??? with shematics diagrams..... PS : I'm using 2s28 optocoupler thanx
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