In the last post, I presented the initial ideas for powering the project. Now it is time to move on and start looking into the individual modules. I was impressed as to how quickly this part progressed since I had done the up-front thinking of the pin and port allocation. So much so, that before … Continue reading Wired for Action – almost
Module One – Power On!
In the last post, the basic device was layed out in terms of requirements, block diagram and a state machine. It is clearly not 100% complete but I don't believe that the whole project should be blocked, trying to model absolutely everything. As the project develops and matures, issues will be encoutered and design decisions … Continue reading Module One – Power On!
Modelling First
I have mentioned about the re-working of an old alarm clock. In this post, I will be kicking the project off and introducing my efforts to model the requirements and project organisation in SysML. I will be using Systems Architect from Sparx Systems. Project Organisation The project organisation shows the directory structure of the project … Continue reading Modelling First
Time for a Change
As a starter exercise, I have decided to put a new life into an old digital alarm clock that stopped working. I received this in 1980 and it worked reliably well until late 2012 when if finally stopped displaying the time. It is amazing that it lasted as long as it did. The tone was not a … Continue reading Time for a Change
Rebooting Electronics 