The Micromite is a Microchip PIC32 microcontroller programmed with the free MMBasic firmware. These chips cost from $4 to $10 and are available in packages from 28 pins to 100 pins. When programmed with the Micromite firmware they make a powerful and easy to program microcontroller that is ideal for most hobby projects.
MMBasic is a Microsoft BASIC compatible implementation of the BASIC language with floating point, integer and string variables, arrays, long variable names, a built in program editor and many other features.
Using MMBasic you can use communications protocols, measure voltages, detect digital inputs and drive output pins. Special features include the ability to use touch sensitive LCD displays, temperature sensors, distance sensors and more.
You can use the Micromite as the intelligence inside any project that requires a medium speed microcontroller but without the hassle of programming in a complex language.
There are a two varients of the Micromite and many PCB boards and projects based on it. This page serves as a summary page for all of them, from here you can branch off to subsiduary web pages that describe each in detail.
At the bottom of this page you can download the manuals and firmware for all versions.
Micromite Microcontroller Chips
The Micromite is available in two versions:
- The standard Micromite comes in a 28 or 44-pin package, runs at a maximum speed of 48MHz and supports low cost 2.2" to 2.8" touch LCD panels. It has a focus on ease of use and low cost.
Jump to the standard Micromite page.
- The Micromite Plus is a more advanced version of the Micromite with double the memory and almost three times the speed (120MHz). It comes in 64 and 100-pin packages and supports a wider range of touch LCD panels up to 8". The Micromite Plus also supports SD cards for program and data storage, PS2 keyboard and advanced graphics controls including radio buttons, check boxes and on screen keyboards.
Jump to the Micromite Plus page.
Micromite Explore 64 and Explore 100
The Micromite Plus is supported with two PC boards.
- The Explore 64 is a small board designed by Graeme Rixon. It includes a 64-pin Micromite Plus, a micro SD card socket, a USB socket and power supply and is designed to plug into a standard solderless breadboard.
Jump to the Explore 64 page.
- The Explore 100 is designed to fit on the back of a 5 inch touch sensitive LCD display panel. It includes a 100-pin Micromite Plus, USB socket, two sockets for Click Boards and a power supply. The combination of the Explore 100 and the LCD display panel make a rigid assembly that can be mounted in a box or a control panel.
Jump to the Explore 100 page.
Micromite LCD Backpack
This is a printed circuit board designed to piggyback on a standard 2.4" or 2.8" touch sensitive LCD panel. It has less than a dozen components and can be built in half an hour.
The combination of the Micromite with the colour LCD panel provides an amazing amount of power for less than US$25. The 320x240 pixel LCD can display colourful text and graphics and the touch sensitive input means that many manual knobs and switches can be replaced with on screen graphics. The eleven I/O pins can be used to measure temperature, distance, voltages, etc and under control of your BASIC program turn on lights, relays and other output devices.
Micromite Based Projects
This website hosts three projects based on the Micromite LCD Backpack. They are:
Interesting Web Sites
A video review of the original Micromite (almost everything applies to the Micromite MkII):
A website that sells the 44-pin version of the Micromite MkII, Micromite chips and all sorts of support parts:
The Back Shed forum is a great place to hang out and discuss the Micromite and microcontrollers:
The first thing that you should read is the Micromite Frequently Asked Questions (FAQ) list as this covers hints related to usage and programming. The list is rather short at this time but as more questions arise it will be expanded.
Also, you should check the list of current bugs found in the Micromite version of MMBasic as it lists any faults found in the current version and provides workarounds if applicable.
The Back Shed has an active forum where many knowledgeable users are happy to help newcomers to the Micromite and MMBasic: http://www.thebackshed.com/forum/Microcontrollers
Source Code to MMBasic
The complete source code for the Micromite version of MMBasic is available for personal use at the main MMBasic website at http://mmbasic.com.
A new versions of MMBasic (ver 5.2) for the Micromite and Micromite Plus is available from the download area below. This is a minor update for the standard Micromite but it introduces a number of new features for the Micromite Plus which is roughly twice as powerful as the standard Micromite and supports many additional peripherals.
To load the new version you will need a PIC32 programmer. The best (and cheapest) programmer is the PICKit 3 by Microchip. Prices range from US$20 for a clone and it is easy to update the firmware - see this page for a tutorial.
To save you from having to check this web page for firmware updates I can also send you an email. To enable this please enter your email address in the box below and click on Submit. Your address will be held confidential and will only be used when an update is available.
|Micromite User Manual||DOWNLOAD|
|Micromite Plus Addendum||DOWNLOAD|
|Micromite Firmware V5.2
This includes both the standard Micromite (28 or 44 pins) and the advanced Micromite Plus (64 or 100 pins) firmware and all user manuals.
|Original Micromite Firmware 4.5E for the PIC32MX150F128 chip||DOWNLOAD|
|MMEdit, a full featured editor for MMBasic (it runs on your PC). By Jim Hiley||WEB SITE|
Previous versions of the Micromite firmware can be found in the archive.