Illuminate Me: Merging Conductive Sewing, Technology, and Solar Power

Adafruit FLORA  board on a black fabric. on the left side 5 lines of grey running stitches are seen between two lines of orange and brown backstitched lines.
Learning Goals

Learning Goals:

  1. Students will design and sew a wearable circuit using conductive thread.
  2. Students will program a wearable microcontroller to light up garment with bright LEDs.
  3. Students will incorporate solar power into a wearable garment project by recharging NiMH batteries for a renewable energy battery pack.
  4. Students will apply knowledge of circuitry and energy transfer to maximize design.
Materials List

Handouts

Individual Supplies

  • 1 Adafruit’s FLORA-Wearable electronic platform: Arduino compatible
  • 1-2 Adafruit’s FLORA RGB Smart NeoPixels
  • USB A/Micro B Cable (can be shared)
  • Flexible solar modules (1.5-4.8 V), variety for testing
  • AAA 3 Battery holder with on/off switch and 2-pin JST
  • 3 AAA NiMH rechargeable batteries (1000mAh) – uncharged
  • Computer with Arduino software
  • 1 Garment (t-shirt, tie, etc.)
  • 1 Bike/boarding/ski helmet
  • 2-3 Yards conductive thread per project
  • 1 Sewing needle (large eye #3/9)
  • Embroidery hoop
  • Clear nail polish
  • Multimeter
  • File folder or heavy paper
  • Wire stripper
  • Sharp scissors
  • Optional: Soldering iron
  • Optional: Velcro dots

Important Links

Next Generation Science Standards

Next Generation Science Standards

  • MS-PS1-3 Gather and make sense of information to describe that synthetic materials come from natural resources and impact society.
  • MS-PS3-5 Construct, use, and present arguments to support the claim that when the kinetic energy of an object changes, energy is transferred to or from the object.

Engineering Standards

  • MS- ETS1-1 Define the criteria and constraints of a design problem with sufficient precision to ensure a successful solution, taking into account relevant scientific principles and potential impacts on people and the natural environment that may limit possible solutions.
  • MS-ETS1-2 Evaluate competing design solutions using a systematic process to determine how well they meet the criteria and constraints of the problem.
  • MS-ETS1-3 Analyze data from tests to determine similarities and differences among several design solutions to identify the best characteristics of each that can be combined into a new solution to better meet the criteria for success.
  • MS-ETS1-4 Develop a model to generate data for iterative testing and modification of a proposed object, tool, or process such that an optimal design can be achieved.

10-15 Class periods

Light up your clothing using solar power! For this unit, students will attach thin, flexible solar modules to a bike helmet and recharge NiMH rechargeable batteries for a renewable energy battery pack. The rechargeable batteries will be used to light up bright LEDs via conductive thread and a programmed microcontroller. This lesson is great for a culminating project since it integrates three major components: sewing circuits with conductive thread, programmable hardware, and energy transformations using photovoltaics. Even if you and your students do not know programming, you can still be successful with downloading prewritten programs. The main lesson is based on the Light Up Angler Fish written by Adafruit’s Becky Stern and can be found on the Adafruit’s website.

 

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