Eyes in the dark

Summary

Eyes in the dark is placed in a bush next to the entrance. When someone walks past, the eyes light up and a sound is played. The exhibit includes a motion sensor, two LEDs and a speaker.

Network location

• Hostname: eyesinthedark
• URL: http://eyesinthedark

Exhibit specific Web API

URL	Verb	Description
/scary_actions/greet	GET/POST	Executes scary action greet

Workflows

• Greet: LED eyes on, play randomly one of three or four exhibit specific greeting mp3, LED yes off

Raspberry Pi pinout:

RPi Pin	RPi Name	Destination	Wire
2	5V	PIR VCC	white
6	Ground	PIR Gnd	brown
11	GPIO17	PIR Sensor	black
13	GPIO27 / Port 5	LED eye drive	blue
15	GPIO22 / Port 6	LED eye drive	blue
20	GND	LED eye GND	purple
25	GND	LED eye GND	purple