1. Another slice of pi Hands-ON with the raspberry pi computer
Aisd science + mathematics x conference 2017
Anita Johnson – kealing middle school
Teach electives at Kealing (magnet & academy):
robotics (LEGO and Arduino)
Coding (beginning and advanced)
Second year of teaching (ACC; Intel Corporation)
Not a math or science teacher, but there are coding applications
Computational thinking is critical
All summer news about machine learning, artificial intelligence
No TEKS, but somewhat aware
This turned into 3 classes (6 hours)
Coding (Scratch and Python)
Physical computing – robotics, light displays, sensors
Raspberry Pi
Hampered by lack of AISD support for this device

2. ANOTHER SLICE OF PI Overview – hardware and software
What’s the big deal?
Examples & demos
Hands-on, questions, discussion
Wanted to teach! Teach coding to anybody, anytime
Once we get connected, you’re free to play (just no Internet)

3. ATTENDEES WILL…
Know and understand the basic features of the Raspberry Pi
Explore the vast universe of Raspberry Pi projects
Get ideas about what the RPi can do for you
Get ideas about how to use in your classes
Do something that you didn’t know you could do!
Leave curious and fearless!
My Los are not lofty
In fact, soft and not particularly measurable!
Already curious

4. What is a raspberry pi - hardware
Small, inexpensive computer ($65-$150)
1.2 GHz ARM processor, 1 Gb RAM (Pentium+)
USB x4, Bluetooth, WiFi, Ethernet, HDMI
Camera interface
Micro SD card instead of a hard drive
General Purpose I/O (GPIO) pins
$35 by itself
Closer to $65 with power $7, HDMI cable $7, case $8, micro SD card $8
AND
Keyboard/mouse $15 wired $20 wireless
HDMI screen $65
So $150 for a desktop computer
OR WiFi enabled device running VNC (e.g. Chromebook)
GPIO – more on this later

5. WHAT IS A RASPBERRY PI - SOFTWARE
Free download
Operating system - Linux Debian (“Raspbian”)
Windows-like graphical user interface (GUI)
Scratch, Python, Java, Wolfram Mathematica
Libre Office suite
Sonic Pi
Minecraft Pi
Show live demo here?

6. Raspberry pi vs chromebook
Advantages – it’s a computer
Programming languages: Python, Mathematica
Other advantages
Size – can incorporate in projects (e.g. robots)
You own it
Replace the micro SD card
Any software you want
BUT not supported by AISD
**GPIO pins**
Physical computing
If “hard drive” gets messed up (students), just swap out an $8 SD card
Same price as a Chromebook
GPIO
Inputs: buttons, knobs, switches, sensors
Outputs: lights, motors
Can control with code
Arduino? How I got into all of this

7. GPIO pins – the special sauce
Connect to motors, sensors, LEDs, Internet of Things (IoT)
Many third party “hats” with multiple connections
No need to know electronics
A zillion open source project & code ideas (resources)

8. Hardware add-ons Sense Hat Explorer Hat Robotics AIY Voice Box
GoPiGo
RaspiRobot3
AIY Voice Box
…and any electronics

9. Connecting to the rpI
Keyboard, mouse, USB monitor

10. CONNECTING TO THE RPI
Laptop/computer with Ethernet cable

11. CONNECTING TO THE RPI – “headless”
Any device (desktop/lapop/Chromebook/Android/iOS) over WiFi to RPi wired to network switch
Any device over WiFi to RPi back over WiFi to router (no Internet if you can’t control the router)

12. Setup & connect
If you have a laptop, you can use it instead of a Chromebook
Download VNC viewer at
Remove contents from box and attach power stick to RPi

13. SETUP AND CONNECT Push button on power stick
Change your WiFi connection to
HornetLAN1
Password: icyskates631
You will not have Internet connectivity!
Open VNC Viewer and enter the address that is formed with your RPi number:
XX where XX is the number on your Rpi
Example: If the number is 3, then enter

14. SETUP AND CONNECT Ignore message and Click on Continue Enter
Username: pi
Password: klg^HRNZ17
If necessary, click on appropriate icon at bottom to make full screen

15. DEMOS and HANDS-ON Navigating the Rpi Linux Python
Sense Hat: sparkles, environ
Other explorations
ExplorerHatPro
Be curious!
Limited due to configuration here (no Internet access)
Do the best we can
Don’t have enough cameras, can share

16. PYTHON Text-based coding Suitable for grade 7+
Taught many schools and colleges (e.g. ACC) as first coding language

17. SENSE HAT 8x8 RGB LED matrix a mini joystick
Gyroscope/accelerometer/magnetometer
Temperature/humidity/barometric pressure
Python library
AstroPi

18. SENSE HAT – ASTRO Pi

19. Raspberrypi.org Great follow-along lessons Most teach coding
Some are applicable to subject areas
Free courses at

20. OTHER RESOURCES raspberrypi.org MagPi – free PDF downloads
instructables.com
hackster.io
adafruit.com
Books!
codecademy.com: Python (new 8/1) and others (HTML/CSS/JavaScript)
Google
Remote Pandora player
DIY Amazon Echo
Robots (including self-driving with AI)
Twitter CAM (if snake moves, takes a picture and tweets it)
Twitter Lights (if any tweet and #[colorname], lights change to that color
Candy dispenser (if they type something happy)
Facial recognition