I stumbled by chance over this project of Georg Heinrichs, when I was looking for a Forth for the small Microchip Attiny 2313. There really is a small Forth implementation with the whole Forth on the chip but not tried it yet

The 2313 has its limitations: with just 2k of Flash.

But on the positive there is a 20 pin DIL-package. So very breadboard friendly. Easy PCB to make if needed.

There are smaller packages, if you can deal with it. But there was another reason for me as well:

There is one other book on the Forth Bookshelf - the Sparrow;

where there is no Forth implementation yet, as it uses the Attiny13, which is even smaller with its 8 pin DIL package and 1k FLASH.

BUT SPARROW can be programmed over the internet no PC, no special software, no programmer required, just your mobile phone/PC, and this chip could be probably used as a target for this MikroForth as well. Still to be tested.

Back to this MikroForth project here now:

I contacted Georg and started with a first translation, as his German version would be a bit difficult to digest for a worldwide audience. He agreed to the translation. We started a Wiki page on the German Forth group website, and there is much of this available now for download and print at https://wiki.forth-ev.de/doku.php/attiny . More to be added as there is time.

I do like the approach that Georg took and he kindly agreed that I can convert his information into an eBook

and later then as well as print book as part of Forth Bookshelf at https://www.amazon.co.uk/Juergen-Pintaske/e/B00N8HVEZM

Anybody with a 2313 chip, a resistor and a capacitor plus a USBtoTTL converter can get going as the software runs on the PC and generates a hex file for programming .

Georg offers as well chips with a Bootloader programmed in already: You can find his website at

http://www.g-heinrichs.de/wordpress/

A complete kit of parts including the PCB as shown on the cover page.

And as well a pre-programmed chip 2313 with a bootloader already programmed in.

There is as well a blog in German at http://www.forum.g-heinrichs.de/viewforum.php?f=12

But the project can be built using a solderless breadboard as well.

Or some other options I tried out and documented here in addition.

One of the points important to me ist to have a system in a box including batteries, so you can run an application without problems and in an enclosure which is probably available worldwide I often use a TicTac Box as we needed a low-cost enclosure for the MicroBox project..

I tried tis out to ensure it all works. But just take it as example and find your own way.

Enjoy the eBook a print version is planned and will be available some time in 2018/19, depending on interest.

I took the decision to make this documentation available as a combined version in English for the non-German world, but to keep as well Georgs original in German rather than publishing two separate items.

I am planning to have this eBook available on amazon around EuroForth (12th of September ) so there might have to be a preliminary version.

We hope you enjoy this eBook and please leave a bit of feedback at amazon, so other readers can use your feedback as guidance. I am often asked why Forth there is Python, C, and many other languages. But I like Forth