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Recent content by yupng

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    How to connect RS232 to IR and send data?

    Re: UCN5801A IC help...... Anyone of u know test this UCN5801A IC? I connect it follow the datasheet and put 5V to its input pin but no output come out from the output pin (i connect a led to test it). Its Datasheet: https://www.alldatasheet.com/datasheet-pdf/pdf/55139/ALLEGRO/UCN5801A.html
  2. Y

    How to connect RS232 to IR and send data?

    Re: RS232 Hey to everyone....i want built a "Wireless Announcement Board". I would like to use a PC to send the data out(using RS232 port) to Microcrontroller,the data(a word or character) will display on dot-matrix screen. I found many similiar project in this forum and most of the project...
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    DIY Moving Message Display

    Hey to everyone....i want built a "Wireless Announcement Board". I would like to use a PC to send the data out(using RS232 port) to Microcrontroller,the data(a word or character) will display on dot-matrix screen. I found many similiar project in this forum and most of the project using cable to...
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    DOT-matrix display(LED matrix) points for a good design.

    how to drive an led display matrix. Hey to everyone....i want built a "Wireless Announcement Board". I would like to use a PC to send the data out(using RS232 port) to Microcrontroller,the data(a word or character) will display on dot-matrix screen. I found many similiar project in this forum...
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    wireless data transmissin(Infarad) using RS232 port(computer

    Re: wireless data transmissin(Infarad) using RS232 port(comp Can u introduce me some conveter? Or tell me which type of converter suitable to use.
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    DOT-matrix display(LED matrix) points for a good design.

    keyboard using dot matrix displays Anyone know how to transmit the data using RS232 port with Infarad? No cable is used. For Example: i already built a dot-matrix display project which the data transfer from RS232 port to dot-matrix display device with using cable connect between them. So...
  7. Y

    wireless data transmissin(Infarad) using RS232 port(computer

    Anyone know how to transmit the data using RS232 port with Infarad? No cable is used. For Example: i already built a dot-matrix display project which the data transfer from RS232 port to dot-matrix display device with using cable connect between them. So now, no cable is used to transfer the...
  8. Y

    DIY Moving Message Display

    Anyone know how to transmit the data using RS232 port with Infarad? No cable is used. For Example: i already built a dot-matrix display project which the data transfer from RS232 port to dot-matrix display device with using cable connect between them. So now, no cable is used to transfer the...
  9. Y

    The best RF design book?

    wireless data transmissin(Infarad) using RS232 port(computer Anyone know how to transmit the data using RS232 port with Infarad? No cable is used. For Example: i already built a dot-matrix display project which the data transfer from RS232 port to dot-matrix display device with using cable...
  10. Y

    How to connect RS232 to IR and send data?

    Re: RS232 from port rs232->max232->IR transmitter module(TX)->TR receiver module(RX). It is work? In MAX232 IC, there have TX and RX, so need use two IR transmitter and receiver? MAX232 - Infrared Device TX - RX RX - TX
  11. Y

    How to connect RS232 to IR and send data?

    Re: RS232 can explain in more detail? Really need help about this.
  12. Y

    DOT-matrix display(LED matrix) points for a good design.

    *.asm proteus i had done a dot matrix display project which is using PC RS 232 port to send the data display device. I used cable to connect between RS 232 port and display device. Now i want change it to Infarad connection.
  13. Y

    How to connect RS232 to IR and send data?

    Re: RS232 I am trying to build an Infrared Transmitter and receiver that will take an RS-232 signal, convert it into TTL, then Pulse Width Modulation would be applied, and then finally transmitted. On the reciever side, basically extracting the orignal TTL signal from the Pulse Width Modulated...
  14. Y

    DOT-matrix display(LED matrix) points for a good design.

    ebookee I am trying to build an Infrared Transmitter and receiver that will take an RS-232 signal, convert it into TTL, then Pulse Width Modulation would be applied, and then finally transmitted. On the reciever side, basically extracting the orignal TTL signal from the Pulse Width Modulated...
  15. Y

    How to connect RS232 to IR and send data?

    Re: RS232 if i want connect a wireless transmitter to RS232 for the purpose to transfer data from PC to another device. What is the suitable IC that i need to use? At the receiver there,i would like to change it back to RS 232. Actually i done a project (announcement board) which is transfer...

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