Homebrew Experimenter's Board


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  1. #1
    Join Date
    Sep 2015
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    Default Homebrew Experimenter's Board

    Hi All,
    After browsing the Micro Electronics Lab website and doing research on Google, I was inspired to design and build my own PIC experimenter's board. It will have the following:
    40 Pin ZIF Socket
    8 LEDs
    4 Pushbutton switches
    2x16 LCD display
    USB programmer
    64K I2C EEPROM
    Temperature and Humidity sensors
    Potentiometer for 0-5V analog input
    Piezoelectric buzzer

    The ZIF socket will be wired for a 16F887, with all of the port connections coming out to female headers. The peripherals will also have female header connectors for easy interconnects.
    Other PICs will be available for use by inserting them into an interface board wired with different sized sockets. The interface board will have 40 pins that plug into the ZIF socket, allowing any PIC to have access to any of the port pins and any of the peripherals. The only restriction to the use of the interface board is that only the PIC in use can be plugged into its socket; the other sockets cannot be populated.
    I will post schematics and a bill of materials soon.
    regards,
    mike

  2. #2
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    Sep 2015
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    Default Re: Homebrew Experimenter's Board

    Attachment 8130Attachment 8129Attachment 8128Here are the schematics and a bill of materials for the PIC Experimenter board. One thing that I forgot to mention in my first post has to do with the USB Programmer. The schematic, firmware, and programming software are available from Circuits Gallery. A google search will find the link to "How to build your own USB PIC programmer." I will post schematics for the adapter board soon.
    Regards,
    Mike
    Attached Images Attached Images

  3. #3
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    Oct 2009
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    Utah, USA
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    Default Re: Homebrew Experimenter's Board

    Hey Mike,

    That is looking pretty good.
    A couple of thoughts...

    I did not see any regulator on board to power your projects.
    You may want to consider making it possible to use either 5v or 3.3v by including both regulators and a selection header.
    Or are you planning on the usb providing the power?
    Dwight
    These PIC's are like intricate puzzles just waiting for one to discover their secrets and MASTER their capabilities.

  4. #4
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    Sep 2015
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    Default Re: Homebrew Experimenter's Board

    Hi Heckler,
    The 5 volts is supplied by the USB connector.
    Sorry that I forgot to mention that.
    Regards,
    Mike

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