Table of Contents
Who We Are
- Introduce myself and fellow facilitators, and helpers.
Why We’re Here
- To introduce you to computers and electronics that act on, and react to the real world — this is known as physical computing.
- By module six you’ll be programming a robot car you build in modules four and five, through a challenge course.
- Daniel be going through Modules one through three with you, so that you are ready for the robot challenge in the second half of the program, and hopefully getting you doing some interesting technology along the way.
Who are You and Why are You Here?
- Get the learners to introduce themselves and what they hope to get out of the program.
How the board in front of you (Raspberry Pi) is a computer
Modified from presentation as original version confused the kids; see Module 1 Skipped or Simplified Information, Part I for the original. The next edition of Bots & Bytes will have a better presentation.
- (Pointing parts out on an actual PI): The largest chip on the board is what is known as the SoC or System-on-a-chip or CPU and is the brains of the Pi. The other large chip on the topside of the Pi is the USB controller. On the bottom of the board are the wireless (shielded), RAM, and MicroSD slot.
- The I/O (input/output) on the Pi is mostly in the SoC with access to the pins on the chip exposed with the double row of header pins that are on the board. In addition there is USB that is used to connect the wired network connection and USB ports. The wireless is embedded into the Pi and does not go through the USB hub.
- Another important piece of the Pi is the RAM — that is the scratchpad the CPU uses for doing calculations and running programs, while the Pi is powered on. The contents of scratchpad are lost when the Pi is turned off.
- And finally, connected through more I/O is the micro SD card, which provides persistent storage, which means what is on it continues to exist when the Pi is turned off, even if it is removed from the Pi.