Label the LED

  1. Lay your LED on a piece of paper.
  2. Circle and label the LED.  
  3. Draw the symbol for the LED next to the LED.
  4. Draw a plus sign (+) next to the long leg and a minus sign (-) next to the short leg.

STEM Connections

LED stands for Light Emitting Diode. An LED is made with a semiconductor that converts 'electrical energy' to 'light energy' when electric current flows through it in one direction.

Explore the Materials

  1. Pick up each component and examine it closely.
  2. Refer to the video and identify each of the components as one of the following:
    • Arduino board
    • Breadboard (with red, blue, and black highlights)
    • Resistor
    • LED
    • Red and black wire
    • USB cable
    • Computer/Laptop
    • Pencil
    • Paper
    • Red, black, and blue markers

Try New Things

  1. Try to complete the “Sprinkler Challenge” with the standard Servo by changing the code so that your standard Servo behaves like a water sprinkler. Starting at 0, the Servo should move to a range of angles between 0 and 180 degrees before rapidly returning to 0 degrees and then cycling through the range of angles again.

  2. Try changing your code so that the continuous Servo begins at a stop, then begins slowly rotating, then slowly speeds up until it is at maximum speed in that direction (0 or 180), then comes to an abrupt stop before repeating.

Explore the Materials

  1. Warning: Do not turn the Servos by hand. Doing so can damage the mechanisms inside the Servos.
  2. Pick up each component and examine it closely.
  3. Refer to the video and identify each of the components as one of the following:
    • 1 Continuous Servo (the big Servo in the video)
    • 1 Standard Servo (the small Servo in the video)
    • 1 Red wire
    • 1 Black wire
    • 1 White wire
    • 1 Arduino Uno board
    • 1 USB A to USB type B Cable

 

 

Build the Robo-craft

At the Thinkabit Lab, students are monitored during selection of crafts, so that all teams have a fair chance to get items they need. We found that releasing a few teams at a time and allowing each team to select the one item they want from the craft station and 1 platform from the cardboard station creates a smooth move. When every team has had a chance to get those basics, then they are all welcome to get more items.

Human Circuit

At the Thinkabit Lab, students love the Human Circuit activity. We've listed instructor directions below:
  1. Arrange students in a large circle. Make sure that each student can hold hands with both of their neighbors.
  2. Prompt each student to hold hands or wrists with the students on either side. Make sure there is skin-to-skin contact between each student. Ask students to roll up their sleeves if needed. Tell students that for the activity to work they need to continue holding hands or wrists unless explicitly told otherwise.

Basic Engineering Concepts

At the Thinkabit Lab we focus on the three most commonly used types of engineering: Electrical Engineering, Mechanical Engineering, and Computer science. To help students visualize how these three types of engineering work together, we use an analogy to connect them to three main human body systems.

We’ve listed teacher instructions below:

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