2.4.2 - Circuits Continued

Day 2 - Goal

• To make an actual single LED light up on a breadboard

  • extension - can you properly and safely light up two or three different coloured LEDs at once?

  • extension - can you control the LED (or two) with a SPDT switch?

  • extension - can you learn, independently, to control the brightness of the LED with a potentiometer?

Review

• we need enough "voltage drop" in the loop to ensure all the components work to specification

  • V = I x R   or   R = V ÷ I

The Plan (Your Task)

• You will sign out your components and initial once they are returned to their location

• With or without a partner, you will need:

  • • A breadboard

    • A 9V battery with wire harness / connector

    • Jumper cables (minimum 1 but more is recommended)

    • An LED (R, G, B, or W - not "RGB")

    • optional - one SPDT switch

    • optional - one potentiometer

• Note - if you blow an LED, do not hide it. Tell your teacher. You won't be in trouble, they aren't expensive.

Extra

• can you properly and safely light up two or three different coloured LEDs at once?

• can you control the LED (or two) with a SPDT switch?

• can you learn, independently, to control the brightness of the LED with a potentiometer?