Appendix 1 Revised  diagrams  for *development System
*Development system is  the basic  PCB that  also holds the Simple bike computer but will also allow work on more advanced bversions of the Bike computer.
In Appendix 2 we have a  Bike computer only PCB and associated components
PCB  of  Bike computer and test accessories.
This is the modified  PCB diagram that now corresponds with the Theoretical  bike and test  Electrical circuit Diagram.
 
Fig.40 updated PCB for development system
The Theoretical diag. +component layout
The theoretical electrical circuit of the Bike computer circuit , the test components and a layout diagram for component placement.
 
Fig.41 modified theoretical circuit for
development work on simple bike computer.
Note. In the text we discovered that there
were errors in the pcb shown, which as far as I can see are now eliminated.    
 
 
  
