LED Control

Outline

• We’ll make a LED blink in this post. Gotta start somewhere.

Preview

Materials

• Raspberry Pi
  • For example through CanaKit
  • $70 on amazon
• electric cables
  • $7 on amazon
  • There are probably cheaper options
• electronics start kit
  • $13 on amazon
  • There are definitely cheaper options
  • For this tutorial, we’re just using an LED, a 1k resistor, and a breadboard
• commonly available materials
  • keyboard
  • mouse
  • monitor
  • hdmi-to-hdmi cable to connect raspberry pi to monitor
• total cost: $90 + cost of common materials

Walkthrough

• set up the raspberry pi
  • see canakit instructions
• set up raspberry pi wifi connection and ssh
  • connect pi to monitor, mouse, keyboard
  • follow these instructions to set up ssh
    • hostname -I to get ip address
    • ssh pi@<ip address>
      • from your other computer
    • default password is raspberry
• set up raspberry pi with LED
  • see Raspberry Pi Cookbook instructions tutorial
  • download my version of the code
    • run sudo python 1_led.py from cmd line

Result