+-------------------+
| Arduino Uno R3 |
| |
| +-----------+ |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | Pin 13 --+---[220Ω]----+
| | | |
| | | /| (Base)
| | | | |
| | | | |
| | | | |
| | | \|
| | | |
| | | / (Collector)
| | | | \
| | | | \
| | | | \
| | | | \
| | | +---+---- Terminal 1 (DC Motor)
| | | |
| | GND ----+------------+
| | | (Emitter)
| | | |
| +-----------+ |
+-------------------+ |
|
+---+---+
| DC |
| Motor |
+---+---+
|
|
Arduino 5V Pin