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This is the overall froglogger circuit before our modifications.
Note that the circuit is set up in such a way that the voltage
regulation devices (needed only when the froglogger is recording)
are always active. In addition, the circuit is all set up with a
positive sense logic, which assumes a solid ground, thus necessitating
the use of a 74LS14 Hex Inverter within the circuit. These issues
were resolved in the implementation shown next.
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