Data Sheet

-17-
4. LED, the Check Valve Light
Replace the lamp (76) with the LED (69), making sure
it’s in the correct direction. Press the switch (62) to
turn it ON and OFF. Reverse the LED (69) and repeat.
Notice that the LED does not light when in the circuit
in the reverse direction, demonstrating how LEDs only
allow current to ow in one direction.
5. Magnetically-controlled LED & Motion
Sensing
Replace the switch (62) with the reed switch (83). If you
touch the reed switch (83) with the magnet (7), you will
light up the LED (69). If you move the magnet (7) away
from the reed switch, the LED (69) will be turned off.
This simulates a motion detector that turn on the lights
when you enter the room.
6. Press Switch-controlled LED
Replace the switch (62) with the press switch (61),
then press the press switch (61). You will light up the
LED (69). Release the press switch (61) and the LED
(69) will be turned off.