This document discusses how coding can be used for disaster relief efforts. It provides instructions on how to build a rescue beacon using a Raspberry Pi microcomputer that flashes an LED light as an SOS signal. The instructions guide the user through wiring a circuit with a resistor and LED light, and programming the beacon to flash using code. The document encourages continuing to learn coding through free online resources and suggests the Raspberry Pi as a device for electronics projects.

1. Coding For Disaster Relief

2. We would like to acknowledge the Traditional Owners
of this country, and the custodianship of their elders
past, present, and future.
Acknowledgement of
Country

3. EWB works in partnership with communities
in Aus and overseas, helping them to access the
knowledge and appropriate engineering solutions
that they need to give them more control of their lives.
Engineers Without Borders

4. Coding + Engineering

5. Coded Devices
Around the World
Example: Farming

6. Coding Language + Microcomputer + Electronics

7. Connect your computer to Raspberry Pi:
 Gently connect the CAT cable (big silver box on the Pi)
 Then the microUSB cable for power (small silver plug on Pi)
 Check that small green, red, and two orange lights illuminate on the
Raspberry Pi
 Open an internet browser (ideally Google Chrome)
 Type 192.168.1.1:8888 in the website address bar and press Enter
Opening our coding page

8. The Notebook Homepage

9. New Notebook

10. Follow the worksheet instructions to learn the fundamentals of
most mid to high-level coding languages.
Two things to remember about Python:
 It is CaSE SenSItiVE, so copy the worksheet code exactly
 The code that follows statements & loops (if, while, for, etc)
must be indented with the tab key or space bar
Coding Fundamentals

11. Cyclone Aftermath

12. Rescue Beacon

13. Beacon Wiring:
The Circuit
RESISTOR:
gets rid of some power
LED Light:
our beacon
Power
No Power

14. 6th pin
(5 volts
= POWER)
This way
round:
Beacon Wiring:
Step 1 - Power

15. Power
Longer leg
connected on
POWER side
(because it’s
the positive
leg)
Beacon Wiring:
Step 2 - Resistor + LED

16. Power
3rd pin
(0 volts
= NO POWER/
’GROUND’)
Beacon Wiring:
Step 3 - Ground Wire
Now use the code in the
worksheet to get it flashin’

17. Radio Message
Now use the code in the
worksheet to transmit your
typed message

18. Debrief Discussion

19. Free learn-to-code websites:
Code Academy: http://www.codecademy.com/#!/exercises/0
Scratch: http://scratch.mit.edu/
Code Avengers: http://www.codeavengers.com/
Hackety Hack: http://hackety.com/
Continue the Journey

20. Continue the Journey
The Raspberry Pi was designed for students
and people who love doing electronics
projects at home. They cost around $50
and can be bought online from within Aus.
The breadboard and other cables
and electronics can all be bought
online or from an electronics store
like Jaycar.
Example Raspberry Pi project: 3D LED cube…