Anyone looking for support or advice on old products or custom apps from Adit Limited (1988 to 2019) can contact the founders via the Contact page.
This web site supports two technical books now out of print (2025).
The Book on the C language and Arduinos can be read online here.
You will find all of the code from the books organised by chapters together with some additional materials.
For ongoing access to these support pages, please bookmark this page as the following URLs are deprecated:
There are occasional blog posts related to Arduino projects that can be found here.
More general technical blogging on C#, .NET and so on lurks here.
A JavaScript blog can be found here.