Make: Volume 82

NOTE: You can find your Pi’s IP address by

entering ifconfig into your terminal command and

looking for the inet address.

3. BUILD THE ARDUINO CIRCUIT

Connect the LED and the 220Ω resistor to

the Arduino Nano’s pin D5 and ground, as

shown in Figure

F

. Connect the PIR sensor to

Arduino pins D8, power, and ground, as shown.

This sensor helps our Pi Smart Cam detect

movements, even in the dark.

4. SET UP ARDUINO SOFTWARE

Follow the general Arduino setup guide at

arduino.cc/en/Guide/ArduinoUno. Then upload

the motion sensor code from the Github repo,

pi-motion-sensor.ino, to your Arduino board.

The code snippets shown here demonstrate

how the Ar