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Digital board
Digital module board is equipped with:
3 Light Emitting Diodes (LED), connected to port PC[3..5];
3 micro switch, connected to port PC[0..2];
7-segment number indicator, connected to port PC6, PC7, PG2
PA port (5 V level) for alphanumeric LCD;
PA port (3,3 V level) for graphical LCD (starting for version 3.2);
PG 2 pin port
Electrical connections
LED and micro switch connection schematics:
7-segment numeric indicator electrical connections:
Connecting module