Design and Technology
My Own Personal Yellow Brick Road

Sorry couldn’t resist, ┬áI love the IT Crowd Ok, what am I fixing and what are my procedures? I need to remake some of my circuits from my experimentation posts and give them to one of my lovely colleagues to sabotage. I should start with something relatively simple and work up to the complex stuff […]


Ok, I’ve come across a few really important tools and processes┬áin my circuit experiments so far and I thought it would be a good idea to give them a proper introduction seeing as they’ve been so helpful… Our old friend, the oscilloscope, has made another appearance. It first made itself invaluable in my keypad safe […]

circuit diagram

Aahhhhhh! it’s stopped working! After painstakingly putting the kit together and testing it, my contrary PIC chip has decided to stop working. Today I plugged it in to find that only some of the keypad keys are working, the LED won’t flash and the buzzer is making a constant low level bzzzzzzzzzzzzzzzzzzzzzzzzzz (very annoying when […]