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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by mikemikemike

  1. M

    Which regulator offer used to produce 3.3V?

    for digital device consume about 500mA.
  2. M

    Which regulator offer used to produce 3.3V?

    LM317?LM2937-3.3? I am in a hurry about this
  3. M

    ethenet hub

    I am sourcing a ethenet hub 1 to 2 only. And because of limited dimension , very small size of hub must be used The Question is , can i just connect all 3 cat5 cable in parallel. i.e. Cable A pin1 connect to Cable B and Cable C pin1, ..... Could this achieve the problem? THX
  4. M

    RS232 bus control

    yes, you got my idea. i use 8051 to control different device with different protocol . All these devices with predefined proctocol, may ASCII or bitstream. is there any IC can buffer such connection?
  5. M

    RS232 bus control

    I am doing a project with 8051 control mutiple rs232 device. they are all in different protocol, how can i control them without affecting even others? is there any ic can deal with such problem or i should change the not using 8051
  6. M

    Any Good ARM chip set for beginner?

    I am search beginner level ARM chip set, also any good leading company give good products on this? Thx
  7. M

    rs485 to rs232 modem

    How can i connect to rs232modem from MAX485 chipset? The connection is MAX485 2-wire to ATEN IC485S convertor to modem. The modem do not have any response. but i have test the cable by logic probe, which response pulse when data pass. Is there any thing missed? RTS need to be setted...
  8. M

    Parts for convert signal line from 3.3v to 5v

    i found that 74lvc244 can convert 5v to 3.3v but any parts can do this invertly?
  9. M

    Http/Ftp Server

    I want to design a device with using RTL8019, microchip/8051 microcontroller , USB device PDIUSBD12 . USB interface will connect to usb disk(or it can be replaced by a IDE HardDisk) which act as the storage. Is it possible and efficient to develop and ,may be in short , worth to do that...
  10. M

    Http/Ftp server

    I want to design a device with using RTL8019, microchip/8051 microcontroller , USB device PDIUSBD12 . USB interface will connect to usb disk(or it can be replaced by a IDE HardDisk) which act as the storage. Is it possible and efficient to develop and ,may be in short , worth to do that...
  11. M

    PCI Extension

    Thank for all The reason why i do that is because of a special terminal case made to fit in industry environment. The client need another source of data collecting interface which specified a PCI card. But the case of the terminal is just like a 1U computer and we can not use riser because...
  12. M

    PCI Extension

    Do anybody know that Can i exntend the PCI slot by using IDC flat cable? Is there any Limitation of the PCI BUS? Length, Power, freq? Thank for answering
  13. M

    IDC connecter for 2678 wire strip

    here i have a 60pin IDC connector with using 2678 cable strip. I have no idea where i can find the connector. which is not standard 2.54mm jumper pin separation.,surely not a ATA133 HDD cable connector Also, where can i get the 2678 strip? I am in hurry. Please give me an answer Thx for...
  14. M

    Where Can i buy a PCI Slot?

    Urgent Thx for all!!!

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