In addition to documenting the components in a circuit, a schematic documents exactly how they are connected to each other.
0:00 Connected vs Not-Connected lines
1:04 Arduino Uno schematic
2:00 Separate power circuits from rest of circuit
2:36 Layout of schematic is different from Arduino's layout
3:20 Drawing a project's schematic
4:53 Cleaner schematics with wireless connections
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