Guide

Page 59
NIGHT-LIGHT PENNANT
4
NIGHT-LIGHT PENNANT
LilyMini
ProtoSnap
S
Button
LEDs
Light
Sensor
1
4
3
2
+
_
Press to change mode
1
2
3
4
on
CR2032
LITHIUM BATTERY
3V
Understanding Your
Circuit: Inputs
The light sensor and button are inputs – components that gather
information from the world and relay it to the microcontroller. The LilyMini
reads information from the inputs connected to it and makes decisions
in the code based on the values it receives. The LilyMini switches modes
when the button is pressed. In modes 2 and 3, when the light value from
the light sensor falls below a certain level, the LilyMini tells the LEDs to
change behavior (breathe or twinkle). When the light level rises again, the
LilyMini tells the LEDs to return to the original behavior.