Battery Interface Board for Compost Temperature Meter

9[last updated: 2021-07-02]
Perf+ main page
Perf+ Layout and Build Procedure:
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• My temperature probe project to monitor my garden compost pile uses a 3.7v LiPo battery.
  However the Arduino Nano that runs it requires 5v.
  So I'm using a Pololu step-up module to get 5v from the 3.7v battery.

  This interface board holds the Pololu step-up converter, and also a switch to connect the internal 3.7 LiPo to either the Pololu to power the Nano, or to an external plug to allow charging the intertnal battery.

• The board is built using the PerfPlus prototyping board

• PerfPlus build process:
  • Place components:
  
  • Define component bridges to vertical bus:
  
  
  • Lay out Circuit Traces:
    
    
    • Note: bus bridges have not been marked yet, except those on the vertical busses needed at the components.

  • Mark bus bridges:
    
    
    
    • Note-1: These holes are used as feedthroughs to connect the horizontal trace on one side to the vertical trace on the other side, so they need bridges to both.
    • Note-2: These holes only connect to traces on one side of the board, so they only need one bridge.,

  • Mark Trace Cuts:
    
    
    

    Minimum cuts
    
    

    Recommended cuts

  • Create Build Lists:
    • Cut List:
      
      
    • Bridge List:
    • Component List:

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