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Don's Download Dungeon.

Free or Shareware | Authors! New Software products wanted | Hardware Hints from Dontronics | Pick of the PIC PIC's. Pictures of Industry People. |

This is a collection of  free or shareware files associated with the development of MicroController Systems and Electronics Related design and development in general. All Files can be downloaded from the Dontronics site.

By placing all niche Electronics and Microcontroller softgoods in a common shopping basket so to speak, we hope customers will visit regularly and make a choice based on their own requirements, features, pricing, etc.

A shopping mall for Electronics and Microcontroller products is going to work better than an individual company trying to market products.

A book shop is an example of this. As an author, you write a book. Is it better to try and sell it yourself for the full profit margin, or receive a payment from a distributor that does the task of fully interfacing with the customer for you? Dontronics gives you the feedom to do it both ways if you choose to do so.

Free or Shareware packages available for download.

Cyber Circuit Plus Schematic Library CyberCircuit Plus (over 1100 items).......
AVR AT90S8515 getting started code Version 4.0. by David VanHorn
PICLOADER is a resident bootloader for the Microchip PIC16F87x series of FLASH based microcontrollers.
http://www.dontronics.com/rfarmer.html
dt006_programming.html Free Basic Compiler and Programmer
8051 Series Microcontroller Simulator presented as is. By Steve Nolan
Basic Stamp Divided By Four! by Antti Lukats of Sistudio. Runs a BS1 in a PIC16F84.
DOS/W9x/NT PICmicro16x8x Programmer Software by Nigel Goodwin.
mEL Basic Compiler W95 Front end for the Stamp I. by Richard Skinner.
nc100.zip 55K Some Amstrad NC-100 stuff I did back in 1992. Sorry, no other support available.
Picex RS-232 Network Controller Source Code by Dontronics. Includes Max-186 ADC routines.
PIC Source Book/Disk by Scott Edwards Electronics. Yes, this is the full on-line version!!!
Real Time Clocks. Interfacing Stamps and PICs to DS-1202, DS-1302, NJU-6355, and PCF8593P, plus data pointers.
Z80 Source Code for Interfacing 4Mb Drams, Development System, etc. Uses just a 74LS00 and a 74LS04 to talk to 4Mb Drams. Yes, I am the only person I know of that ever did this. All done in software, full source code. Possible expansion to 64Mb. About 15 years of my Z80 code ramblings including Z80 Tiny Basic by Don McKenzie. Support Zero. I'm too old to re-visit Z80 code at a guru level now. Enter at your own risk.
Using a 8255 to expand the number of io lines for an AT89Cx051
Expanding the parallel port's io lines with an 8255.
IBM PARALLEL PRINTER PORT
Download term.zip  17K A small DOS type front end that works great with the kit121 Programmer, or any device that transfers an ASCII  file via a com port. You don't have to get into Windows awkward hyper-term now! Set up an icon for it on your desktop. Compliments of Frank Crivelli Ozitronics
Vrite - the AVR Parallel Port programmer for the Atmel AT90S1200/8515 and other AVR micros. by Chris Morris. Please Note. Chris's email address is no longer valid, and it appears that faster computers are running into problems with this software.
Hi Don, you (and your customers) might be interested in the (free) Realterm Terminal software. It is
particularly aimed at getting comms going with hardware, and dealing with binary data. Since so
many projects involve connecting to a serial port, you need a program that helps, not something
made to log in to BBS's with! Actually it does heaps more. It would be good if you could find the time to link to http://realterm.sourceforge.net from your software tools area. Regards, Simon Bridger
http://www.FreeRTOS.org

winpost.zip (Australia) and winpostus.zip (U.S.) Gary Barnes from Perth in Western Australia has very kindly sent us his very-easy-to-use Australian Post Code and US Zip Code directories.  With these little gems, as soon as you download and install, you can enter a suburb and the post code / zip code will be shown, or you can enter the post code / zip code and and the appropriate suburb will be shown.
Hi Sharon I took the opportunity a short while ago to update the winpost program with the latest Australia Post Database. I also changed the data format so that you can use it in excel or other programs is you desire. The program has also been tidied up a little, and I added an option to view it in mixed case. This was partly prompted by the followup comments of Matthew (below). I have also included the entire Australia Post Database for anyone who is interested. Just unzip it and copy it over the existing files. Cheers Gary

Hi Don, For those, like myself, who eschew Microsoft, I have written a little Perl programme to take the slightly unfriendly data format of the Aussie postcode file in the (above) Winpost package and produce:
1) A pipe (|) delimited version, excess whitespace stripped and locations coverted to mixed case.  Some things like 'MC' for mail centre get mangled to 'Mc', but I find this better than having my brain explode trying to read all upper case text ;-)
2) A one-per-row fixed version, data otherwise unchanged.
There are user options in the programme so that you can set up fields lengths (row length assumed to be sum of fields!)  I haven't looked at the US version, but hopefully changing these should allow the same to be done for other data. Matthew Smith Kadina Business Consultancy South Australia

Another gem from Gary Barnes in Perth Western Australia. He has written an LM317 Voltage Regulator Design guide, complete with schematics. A very handy tool indeed.

Another gem from Gary Barnes in Perth Western Australia. I have attached the latest version of the terminal program that I sent you earlier. This version has been extended to com6: which makes it a lot more useful. New Sep-2005
 

Nigel Goodwin's Software

At the present time there are five programs available for download, and they are all concerned with the PIC16x84 microcontroller. Previously we held them on the Dontronics site, but like all good ideas, Version updates can take a lot of time, so we have simply linked to Nigel's site above. Thank you for your ongoing support Nigel.

Public release of Nigel Goodwin's Source Code to the 16 bit windows PIC programmer software.
This needs Delphi 1.0 to compile, but this has been given away free on many magazine disks, and is also included with all the later 32bit versions as well.
http://www.dontronics.com/doclub/files/picsource.zip
is the address of the 42K file.
Username: files
Password: dontronics

I haven't tried it on a DT001 yet! - but it works fine on the P16PRO40, and as such I've added an extra output line 'Vpp40', and if you set that to the same line as 'Vpp' it should work OK with the DT001 and a 16F8** on a SimmStick (I'll get around to trying it one day!).
BTW - nice Olympics :-).
Nigel.
Web Page : http://www.lpilsley.co.uk
 

Authors! New software products wanted

Perhaps you have a MicroController or Electronics related software product that you wish to sell on the Internet. There are many advantages to doing business this way.
Immediate product and upgrade distribution.
Flexibility of upgrade policy changes. If a major upgrade is introduced, and a new fee or price is to be charged, previous customers can be informed via existing message Auto-responders at Dontronics.com
Manuals or disks can't be made obsolete due to version updates, as all manuals are files only and produced in either plain text, HTML code, On Line Help Text, or PDF format, and all executable files are downloaded from the Internet from a secure password protected site.
No costs at all for manuals, disks, or any other media.
No postal or insurance charges for product distribution.
No packaging costs, no more going to the post office.
No "one-on-one" selling.
No Custom Import/Export fees or paperwork problems.
Credit Card Merchant facilities not required by the Author. This also means that Credit Card problems such as declined cards for inaccurate data and insufficient funds aren't your problem.
Single Royalty payment from Dontronics on an agreed quantity or period of sales.
Existing Dontronics agreements with Software Authors should promote confidence with any new Authors as all Author email addresses are posted and these people can be contacted. (The web is an open book).
Sales are done effectively on a Commission basis, which means you don't have to put out for any up front material costs or advertising.
No management costs or time involved.
Provision for you to still sell and distribute your own product on disk or CD if you wish.
Get on with what you want to do, not what you have to do.

Selling an item on the internet can be a land mine of danger. By selling through Dontronics you are protected against fraudulent orders, as we have to carry the cost of any losses and charge-backs from the banks. For software sales, email addresses have to be verified, no free email addresses are accepted. Often we must do a round of faxes or telephone calls to verify identity.

Many of these checks result in the potentially fraudulent customer vanishing before the funds are even collected. When we do detect a fraud, the funds must be returned to the real account holder.

Bank transaction fees run as high as 3.8% for Amex, others are lower, however charge-backs, and chasing up charge-backs can involve several hours that can roll out over 4 or 6 months, and generate a mountain of paper for one single transaction.

Drop me an email for a short chat.

In fact, my only demand is that all Authors must be contactable via email by customers and Dontronics in a reasonable time for full product support.
As I say to all my associates and even competitors, I look at my site as a niche market shopping mall. People come to visit. If they pass through the front desk sales, and go into the individual shop to purchase, then I feel we will both win eventually, as they will return to my shopping mall sooner or later looking for something else. Any new product I add to my range, I always promote through several channels I have such as my newsletter, SimmStick user group, and the news groups.