Physical Computing 2 – Lights-Cameras-Sensors! in Scratch – Boolean Girl 2020

Course Details

Physical Computing 2 – Lights-Cameras-Sensors! in Scratch

Physical Computing 2 – Lights-Cameras-Sensors! in Scratch

You must first complete Get Started with Physical Computing with Scratch before viewing this course
or log in to view this course.

Ready to start working with motion sensors, motors, and a camera?  This set of lessons uses a variety of new sensors to extend your skills as a Boolean Girl engineer.  Work with buzzers, light sensors, motion sensors and motors.  Learn how to connect these sensors to your Raspberry Pi computer and write the sensor controlling software in Scratch.

Lessons

  • Length: 30 minutesComplexity: Easy

    Ever wonder how a device like your phone knows when it is flipped over?  Learn how to create circuits that turn on and off if the thing that it is attached to flips over.

  • Length: 30 minutesComplexity: Easy

    Learn how to create circuits that turn on and off as the light changes from light to dark. A photoresistor or light sensor is used to detect light.
    In bright light, the sensor acts like a button that has been pushed and allows electricity to flow. In the pitch dark the sensor is like a button at rest, no electricity flows. Unlike a button, resistance of a photoresistor decreases with increasing incident light intensity.

  • Length: 30 minutesComplexity: Easy

    Write a simple Scratch program that make an active buzzer buzz. A buzzer is another kind of output. The circuit and Scratch code will look familiar, they are similar to a light circuit, another kind of output.

  • Length: 30 minutesComplexity: Standard

    Learn how to create circuits that turn on and off when something moves.  This sort of circuit is used in alarm systems and powers motion sensing lights.

  • Length: 45 minutesComplexity: Standard

    Build your camera and start taking pictures using Scratch.  Each picture is saved as a costume.   Make a sprite with your face or your friends faces.

  • Length: 30 minutesComplexity: Easy

    Write a simple Scratch program that you can use to see what things conduct electricity.

  • Length: 30 minutesComplexity: Easy

    Write a simple Scratch program that allows you to control a motor with code. A key component of any robot is the motor. When you complete this project you will understand how robot motors work.