Touch Sensor Light – SCOPES-DF

Author

Karol Guglielmana
K-12 teacher

Summary

Students develop foundational knowledge and skills in basic electronics, exploring how voltage and electronic components interact to control a system and how energy manipulation impacts these components. Leveraging this understanding, they design and produce a functional Touch Sensor Lamp. Through product analysis, students refine their designs, applying critical thinking to ensure functionality and aesthetics. They also gain hands-on experience with CNC laser technology, using it to etch designs and cut acrylic panels for their lamps, fostering both technical proficiency and creative problem-solving.

What You'll Need

Materials List

Pine 64mm x 19mm x length is determined by your frame size [4 lengths]

3mm Acrylic Plastic size is determined by your frame size [1 sheet]

6mm Acrylic Plastic Black [for backing cover] size is determined by your frame size [1 sheet]

Wood Glue [PVA]

Pine Putty

240 Grit Sandpaper

Zinc screws 15mm [x 4]

Scorpio Technology Touch Sensor Lamp Kit [has all components]

Scorpio Technology Practice Soldering Kit

 

Equipment List

Mitre Box & Saw

Steel Rule and Pencil

Picture Framing Clamps x 2

Drill Press

CNC Laser

Safety Glasses

Soldering Station & Iron & Fume Extractor

Learning Objectives

  • Understand electronic systems, energy flow, and soldering techniques.
  • Design and create a functional Touch Sensor Lamp.
  • Use CNC laser technology to etch and cut materials.
  • Analyze and refine designs to improve functionality and aesthetics.

Reflection

The theory covered foundational concepts of electronics, focusing on how circuits function and the principles behind them. Key topics included:

 

  • Open and Closed Circuits: Understanding the flow of electricity in functional versus non-functional circuits.
  • Voltage: Exploring how voltage drives current through a circuit and its impact on components.
  • Components and Power Draw: Examining how various components, such as resistors, LEDs, or motors, consume power and affect circuit performance.

I had to integrate hands-on tasks like designing and soldering circuits and experimenting with components. That helped students to understand the theory and directly apply this theoretical knowledge.

The Instructions

Investigating

Activity: Students analyze a design problem and draft a basic Design Brief. Learning Objective: Understand how to interpret and deconstruct a design problem to identify key elements and create a structured Design Brief.

Introduce the Design Cycle:

  • Discuss the steps in the Design Cycle and its importance in solving problems.

Explain the Design Problem:

  • Present the design challenge and highlight key aspects to consider.

Analyse the Design Problem:

  • Guide students on identifying key information and translating it into a Design Brief.

Student Activity:

  • Students practice analysing a problem and drafting a basic Design Brief.

 

Electronic Systems

Activity: Students identify capacitors, diodes, resistors, and ICs from their kits. Learning Objective: Recognize and understand the function of basic electronic components in a circuit, building foundational knowledge of electronic systems.

Discuss Electronics:

  • Whole-group discussion to define “electronics” and its real-world applications.

Explore Circuit Elements:

  • Explain the parts of a circuit (e.g., power source, path, load, and control).

Introduce Electronic Components:

  • Show common components like capacitors, resistors, diodes, and integrated circuits, and discuss their roles.

Student Activity:

  • Students identify capacitors, diodes, resistors, and ICs from their kits.

Integrated Circuits

Activity: Students identify trim pots, transistors, LEDs, and PCBs from their kits. Learning Objective: Develop an understanding of advanced electronic components and their roles in creating functional circuits.

Recap Electronics:

  • Review the concept of electronics and the roles of different components.

Explore New Components:

  • Introduce trim pots, transistors, LEDs, and PCBs. Discuss their functions and how they integrate into circuits.

Student Activity:

  • Students locate and identify these components in their kits.

Input, Process, and Output Devices

Activity: Students categorize components into input, process, and output devices. Learning Objective: Understand how components fit into the functional framework of a system, enhancing knowledge of design and system integration.

Recap Component Roles:

  • Revisit the function of various components in a circuit.

Discuss Devices:

  • Explain input, process, and output devices in electronic and mechanical systems.

Categorise Components:

  • As a class, sort components into input, process, and output categories.

Student Activity:

  • Students complete a hands-on exercise categorising their kit components into the three categories.

 

Soldering Practices

Activity: Students practice setting up soldering stations and soldering components. Learning Objective: Build technical skills in soldering and reinforce safety practices while working with electronic components, enabling precise and effective assembly of circuits.

Demonstrate Soldering Setup:

  • Show students how to set up a soldering station, including proper safety measures.

Student Pair Activity:

  • In pairs, students set up their soldering stations under supervision.

Discuss Solder and Safety:

  • Explain solder materials, the process, and key safety precautions.

Demonstrate Technique:

  • Provide a clear demonstration of basic soldering techniques.

Student Activity:

  • Students practice soldering under guidance and complete a related activity.

 

Generating and Designing

Activity: Students create thumbnail sketches for their design and 3D casing. Learning Objective: Develop creative thinking skills to generate and visualize design ideas quickly. Understand how to represent concepts visually through thumbnail sketches.

Idea Generation Discussion:

  • Discuss techniques for generating creative ideas for individual designs.
  • Encourage brainstorming and exploring unique approaches.

Thumbnail Images Explanation:

  • Define thumbnail images and their purpose as quick, rough sketches.
  • Clarify what thumbnail images should and should not include.

Student Activity:

  • Students create a series of thumbnail sketches for their design ideas.

 

Product Analysis

Activity: Students analyze existing casings, considering dimensions, durability, material, and ease of assembly. Learning Objective: Understand the purpose and value of product analysis in identifying design strengths and areas for improvement. Develop critical thinking by evaluating products against specific criteria.

Purpose of Product Analysis:

  • Discuss why product analysis is important in understanding design functionality and aesthetics.

Criteria Questions:

  • Explain how to develop criteria questions to evaluate products effectively.

Student Activity:

  • Students carry out a product analysis using predefined criteria.

 

Orthographic Drawing

Activity: Students create orthographic drawings of their designs, including the 3D casing. Learning Objective: Learn how to communicate design ideas accurately using orthographic projections. Understand the importance of precise technical drawings in the design process.

Importance of Drawing:

  • Discuss the role of drawing in the design process, including communication and precision.

Student Activity:

  • Students create orthographic drawings of their designs.

 

Creating A Timber Frame

Activity: Students measure, mark, and cut their timber frame pieces using hand tools. Learning Objective: Develop technical skills in measuring and cutting materials accurately. Understand the properties of hardwoods and softwoods and their applications in design.

Material Characteristics Discussion:

  • Compare hardwoods and softwoods, highlighting their properties and uses.

Demonstrate Measuring and Marking:

  • Show accurate measuring and marking techniques for the frame using hand tools.

Mitre Box and Saw Demonstration:

  • Demonstrate how to set up and safely use a mitre box and saw.

Student Activity:

  • Students measure, mark, and cut their frame pieces.

Orthographic Drawing Rules:

  • Reinforce orthographic drawing principles in the context of their frame design.

 

Using the CNC Laser

Activity: Students prepare and etch designs on materials using CNC laser technology. Learning Objective: Explore the capabilities and limitations of CNC laser technology. Understand how CNC tools contribute to prototyping and high-speed manufacturing.

Capabilities and Limitations:

  • Explore the potential and constraints of the CNC laser in design and manufacturing.

Role in Prototyping:

  • Discuss how CNC lasers contribute to prototyping and high-speed manufacturing.

Homework Activity:

  • Students select an image and prepare it using Adobe Photoshop and Adobe Illustrator for CNC laser etching.

 

How to Solder

Activity: Students map out circuit components, set up their soldering station, and solder components. Learning Objective: Develop technical skills in soldering and circuit assembly. Reinforce safety measures and best practices in handling electronic tools.

Features and Safety of Soldering:

  • Explain soldering features and highlight safety measures.

Soldering Demonstration:

  • Demonstrate setting up a soldering station and soldering techniques.

Student Activity:

  • Students map out their circuit components and begin soldering.

 

3D Design and Printing

Activity: Students design a 3D casing using software and submit it for printing. Learning Objective: Gain proficiency in 3D modeling software to create functional designs. Understand the role of 3D printing in prototyping and manufacturing.

Introduction to 3D Design Software:

  • Introduce software – Tinkercad
  • Guide students through basic tools for creating 3D models.

Designing the Casing:

  • Demonstrate how to create a 3D model for the casing, including slots for components and space for wires.
  • Discuss design considerations like ventilation, fit, and ease of assembly.

Student Activity:

  • Students design their casing using the software and submit it for 3D printing.

Printing the Casing:

  • Print the students’ designs using a 3D printer, and discuss the capabilities and limitations of 3D printing technology.

 

Finishing Techniques

Activity: Students assemble their circuit, integrate it into the 3D-printed casing, and fit it within the timber frame. Learning Objective: Apply problem-solving skills to integrate multiple design elements into a cohesive product. Understand the importance of precise assembly for functionality and aesthetics. Activity: Students glue, clamp, sand, and apply a finish to their timber frame. Learning Objective: Develop practical skills in surface preparation and finishing techniques. Understand how finishes enhance the durability and visual appeal of products.

Gluing and Clamping Demonstration:

  • Show proper techniques for gluing and clamping the timber frame.

Discuss Finishing Techniques:

  • Explain the process of preparing a frame for a finish, including sanding and cleaning.

Student Activity:

  • Students glue, clamp, and apply a finish to their frame.

 

 

Evaluation

Activity: Students conduct a product analysis of their completed project. Learning Objective: Reflect on the design process to evaluate the effectiveness of their product. Develop analytical skills by comparing their final product against predefined criteria.

Recap the Design Cycle:

  • Review the steps of the Design Cycle and how they applied it to their project.

Knowledge & Understanding, Process & Production:

  • Discuss how these elements were addressed throughout the unit.

Student Activity:

  • Students conduct a product analysis on their completed project, evaluating their design, casing, and overall assembly against the criteria.

 

Lesson Feedback

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