Guide

Page 58
NIGHT-LIGHT PENNANT
4
Understanding Your
Circuit: Outputs
The LilyMini is a small computer that can store information and
commands to control different sensors and boards connected to it.
Programmable boards like the LilyMini are called microcontrollers. The
LilyMini has been programmed in advance with a set of behaviors, or
code. See chart on page 57.
Try It Out!
Press the small button between tabs 3 and 4 to turn your LilyMini on
and off. Notice that in this circuit the LEDs behave in a different way.
Unlike in our previous circuits, LEDs are not connected directly to the
battery. These LEDs are connected to the LilyMini, which uses code to
send power to each of its numbered tabs at different times – this is how
the light patterns are created. The LEDs are outputs – components that
receive information from a microcontroller and send it out into the world.
Other examples of outputs in circuits are motors, sound creators (such as
a buzzer), and displays (e.g., monitors, LCD displays).
LilyMini
ProtoSnap
S
Button
LEDs
Light
Sensor
1
4
3
2
+
_
Press to change mode
1
2
3
4
on
CR2032
LITHIUM BATTERY
3V