Raspberry Pi
- 2. What is a Raspberry Pi? A Raspberry Pi is a credit card sized computer originally designed for education The goal was to create an inexpensive computer, so schools could begin incorporating more computer development. Thanks to its small size and inexpensive cost it was quickly adopted by tinkers, makers, and electronic enthusiasts for projects. The Raspberry Pi is slower than a modern computer, but is still a complete Linux computer
- 3. Why Raspberry Pi’s? Inexpensive Administrator Privileges Physical Computing Your Interests in Mind Portable
- 4. What can you build? Game System Assistant Weather Station Security System Robots
- 5. The Breadboard A breadboard is a way of connecting electronic components together without having to solder them. LED’s Buttons Wires, etc. The holes in a breadboard are connected in either a vertical or horizontal pattern.
- 6. The Breadboard With the breadboard oriented as above, the top row of holes are all connected together marked with blue dots and a second row marked in blue. These are primarily used for power and grounding. In the middle, the columns are connected together with a break in the middle, thus all the green are connected together and then separately the pink and yellow columns are each connected together.
- 7. LED’s When you pick up an LED(Light Emitting Diode) , you will notice that one leg is longer than the other. The longer leg, known as the anode, is always connected to the positive supply of the power source. The shorter leg, known as the cathode, is always connected to the negative side of the power source, otherwise known as ground. LED’s will only work if wired the correct way around(ie. If the polarity is correct).
- 8. Resistors Resistors are a way of limiting the amount of electricity going through a circuit. They limit the amount of current and voltage. Current – The rate at which the charge flows. Voltage – The difference in charge at 2 points.
- 9. Wiring Jumper wires are used to connect components from the Raspberry Pi to the breadboard and from one point on the breadboard to another. There are 3 types of jumper wires: Female to female Male to male Male to female
- 10. GPIO Pins GPIO staninst for Gerneal Purpose Input Output It is the way the Raspberry Pi can control and monitor the outside wirld through electrical circuits. Generally speaking there are 4 types of pins: Power/Voltage Ground I/O Controllable Specialty
- 11. Checkpoint 1. Why are we using Raspberry Pi’s? 2. How can we utilize the rows and columns of a breadboard? 3. What is a resistor used for? 4. How are the GPIO pins utilized?
Editor's Notes
- #6: They are used for creating and testing circuits before creating a Printed Circuit Board(PCN)