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  • About

     

     

     

    This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Australia (CC BY-NC-SA 3.0)

    The Standard Micromite

     

    The Standard Micromite comes in both 28 and 44 pin packages.  It runs at 48MHz and has 60KB memory for BASIC programs (enough for programs up to 2500 lines long).

    The 28-pin package is a dual inline package (DIP) which can be plugged into an IC socket and easily soldered onto prototyping boards.

    The 44-pin package is surface mount but the pins have a wide 0.65mm pitch which makes it relatively easy to solder.   In addition there are a number of carrier PCBs available which route the pins to a breadboard friendly row of 0.1" pins.

    If you are getting into microcontrollers the standard Micromite is the best avenue.  The cost of the chip is modest (about US$4) and it provides an easy programming environment that is quite powerful at the same time.



    The first Micromite was introduced in the May 2014 issue of Silicon Chip magazine and then updated in the January 2015 issue. Back issues of the articles can be purchased from Silicon Chip or electronic access can be purchased for about the cost of the printed issue.

    Other pages related to the Micromite include:

    Standard Micromite Features

    Remember, all of the above features are internal to the Micromite. The only extra component required is a 47µF capacitor.

    Getting Started

    There are two versions of the standard Micromite:

    The best way to get started is to download the Micromite User Manual or the firmware from the download section at the bottom of the main Micromite web page.  The manual runs to almost 100 pages and includes all that you need to know about programming and using the Micromite. 

    The cost is zero, so why not give it a go?

    Firmware and Documentation

    The Micromite Plus is designed for hobbyists and the firmware and documentation is completely free, there are no licence fees or purchases required.  Go to the download section at the bottom of the main Micromite web page to download the firmware and User Manual.

    Development Boards and Components

    The Micromite User Manual lists the exact part numbers of the chips that you can use for both the 28 and 44-pin versions of the Micromite.

    The 28-pin version is available from a variety of sources:

    Because the 44-pin chip is surface mount you need to solder it on a printed circuit board (PCB) for it to be useful. 

    Micromite.org sell an excellent adapter board (the Micromite Module) that includes the pre-programmed 44-pin chip, a USB-to-serial bridge and voltage regulator as illustrated on the right.  They sell the board in a variety of forms including the blank board and a fully assembled and tested version.  This is definitely the best way to go if you need the full 33 I/O pins that the 44-pin version offers.

    You can also buy the bare chip (not mounted on a PCB).  To use the chip you would need to buy a mounting printed circuit board such as Part Code: 44PINTQFP from Futurlec which costs US$1.20. Micromite.org also sell the blank board for their module (described above) and you can solder the chip to that board.

    Suppliers of the bare (un mounted) chip include:

    GPS Clock

    To illustrate how easy it is to use the Micromite, part 1 of the Silicon Chip article (May 2014) described a GPS controlled digital clock based on the Micromite which uses just a few components.  It is always accurate to a fraction of a second and never needs setting. 

    A more detailed description of the clock can be found here.