Rab18’s Weblog

 1. Circuit Diagram                     2. Real world             3. Finished PCB

4. Art worker                                               5. PCB For Clock Display 

Protocircuit and the photo and the diagrams show the progression of the design process of the PCB. This procedure had a number of stages these were:

•  Using Circuit wizard I designed the layout of my PCB. I Used 2×4 pin single-in-line (SIL) so I could feed the eight out-puts from the picaxe project board onto the PCB. I also used 2×6 pin SIL for the ribbon cable to run from the PCB to the Display PCB.
• When the design was finished, I then converted the circuit diagram to a PCB layout. Circuit Wizard could only take this PCB layout to 94% efficiency. I then used circuit wizard tools to iron out any inefficiency in the design. During this process I had to actively delete, move and add components and lines. Extra time was spent on this part of the process. This was bacause in order to simplify the design of the display PCB, it would involve organising the 12 SIL pins. The 12 SIL pins were arranged in order from 1 to 12 with pin 1 connecting to pin 1 of the display this process was continued for all 12 pins.
• The final part of this stage was to print out from art worker the finished PCB layouts onto acetate.