Category: Projects

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Project Post #3 Sungjin (SJ) Park

Project Title

  • Heart Rater

Weekly Accomplishments

  • Found a reference code for tracking heart rate on Arduino Uno. Currently modifying the code to fit my needs.

Images

  • Methods that need to be modified.

Material List

Areas of Concern

  • Materials I have ordered are still shipping. Thus, I am currently implementing codes prior to materials delivered.
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Project Post #3

PROJECT POST #3

Project Title: Vis Hat  

Project Team: Lydia, Fu, Jay, Sharon

Weekly Accomplishments:

Lydia:

  • Sourced and ordered remaining materials
  • Researching more about brain data analysis, how to reduce noise of data, the form the data will be in
  • Researching and beginning to draft response test experiments for once the sensor/emitters are built and ready for use
  • Researching more about color/form correlation to emotion and coming up with plan/ideas for visualization of data; researching source code for data visualization that could be useful

Fu:

  • Researching the design, testing, working principle for project system and more papers about them.
  • Working on circuit design, including photodiode circuit, emitters and wiring to Arduino Due.

Jay:

  • Research: NIRS process, underlying physiology, brain physiology, parts research, methods and data processing research
  • Drafting circuit design
  • Drafting visualization plan

Sharon:

  • Research: design of the head band, brain analysis, algorithm
  • Read more papers about brain blood activity and design the algorithm
  • Understand how brain react with emotion changing

Images:

The following image shows the relationship between the absorption coefficient and the wavelength and illustrates working principle about how NIR light in and out are read.

The following image shows the circuit design about the photodiode circuit, also about how emitters and photodiode are wired to the Arduino Due. We are going to measure the hemoglobin and deoxyhemoglobin, which are the modified beer lambert law we are going to use.

The following images show (1) a bluetooth-Arduino Due setup we’re planning to implement and (2) a sensor/emitter setup we’ve been researching and reading into as alternative to a previous set up. Our result could be a combination of the two (previous one pictured in Project Post #2).

Material List

title/link # needed price/unit notes shipping and tax TOTAL PRICE:
arduino due 1 34.43 34.43
NPN transistor 1 5.99 this one unit contains ~200 resistors 5.99
730nm emitter 2 8.61 9.54 26.76
850nm emitter 2 1.46 2.92
850 max nir detector/sensor 2 5.37 9.02 19.76
bluetooth 1 28.95 RN41XVC (with chip antenna) 8.81 37.76

 

Areas of Concern:

Some areas of concern have to do with the data we will be dealing with. Because we have yet to gather any data and a large portion of the project involves data analysis/clean-up, it’s hard to plan for possible obstacles in advance. Essentially, we will only be able to truly begin the software development stage once we understand further the state of the information we will receive from our sensor/emitter setup and once this data collection process has begun. Because this isn’t something to which we quite have access yet, reaching out for help would also not be the most beneficial at this time. However, once we gather some initial data in the early testing process, it would be beneficial to meet with someone (i.e. a professor possibly) experienced in brain data analysis. We’ve reached out to Professor Barry Vanveen, who has experience with this and who is willing to help us out when we reach this stage in the project.

 

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Project Post #3: Circuit Tattoo

Circuit Tattoo

John Compas

I have ordered thicker conductive material, mostly conductive tape. I’ll test it on the vinyl cutter tomorrow morning to see how well it performs.

I’ve ordered some SMD components from Arrow to test out my first few designs, such as a multiplexed 2×2 array.

The design will utilize the SMD components to create an array that can be driven by the circuit playground.

I’m researching the antennas for the UHF RFID ICs that I ordered and will use AntSym to design them. I’m currently getting started working with it to determine how well it will work for me.

I think the antennas will certainly be the most challenging aspect of this project, along with getting the conductive material for the tattoos right. However, I think this new round of material will work much better than the leaf.

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Project Post #3: Virtual Vermin

Virtual Vermin

Jeff Brandt

 

Weekly Accomplishments:

  • Created paper model of circuit board cover to get more accurate dimensions
  • Began designing the circuit board cover in Solidworks

 

Images:

Material List:

Wireless Mouse // Quantity: 1 // $9.99 // https://www.amazon.com/gp/product/B015X2OD52/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

Conductive Fabric // Quantity: 1 sq. ft. // ? // Supplies in classroom?

Conductive Thread // Quantity: 2 yds. // ? // Supplies in classroom?

Negative Poisson Ratio Foam // Quantity: 1 sq. ft. // Free // Supplied by my research lab

Gloves // Quantity: 1 // $11.95 // https://www.amazon.com/Agloves-screen-gloves-texting-gloves/dp/B004A9FI2M/ref=sr_1_6?keywords=thin+glove&qid=1552266834&s=electronics&sr=1-6

Adafruit Circuit Playground // Quantity: 1 // Supplied // Already given in class

Short Flex Sensor // Quantity: 1 // $7.95 // https://www.adafruit.com/product/1070

Membrane LED Keypad // Quantity: 1 // $2.95 // https://www.adafruit.com/product/1333

Round Force Sensitive Resistor // Quantity: 3 // $7.00 // https://www.adafruit.com/product/166

Small Piezo Touchpad // Quantity: 3 // $0.95 // https://www.adafruit.com/product/1740

3D printed cover for circuit board // Quantity: 1 // ? (Depends on final print) // creating in Solidworks

Areas of Concern:

As of right now, the area that I am most concerned with is integrating the fingertip sensors into the preexisting mouse circuit board. I am looking for some help in separating the current buttons while keeping the rest of the circuit board intact.

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Project Post #3: Light up Vest

Project Title: Light Up Jacket (“You are hot but you are cool”)

Project Team: Obasi, Jack

Weekly Accomplishment:

Obasi:

Worked on the sample jacket.

Search for materials and fabrics.

Design pattern for the jacket.

Jack:

Searched for ways to light.

Wrote basic code for Playground Express.

Purchased lights for the jacket. 

Worked on ways to detect jumping motion through code.

Images

Code function: if the more pixels light up when the sound is louder (only if the sound is above threshold)

Changes to our approach

  1. We will try to make a light jacket (perhaps with less stuffing), so people can wear it indoor
  2. We will try to make it with transparent fabric so that the lights can have a glowing effect
  3. For now, instead of detecting the bass, we will detect loud sound since bass can be very tricky to detect
  4. We will add a “bounce” feature so that when the performer jump on stage the color changes as well
  5. We decide to make a vest instead of a jacket since a vest can be worn indoor and look cool at the same time.

Material List (Still deciding which to buy)

El Wire:

Blue, Green, Orange & Yellow colorways

$1.35 Each

6 wires in total

https://www.ellumiglow.com/electroluminescence/electroluminescent-wire

Neon Pixel Strip

LED light

$12.5 Each

0.5m – 2m

https://www.adafruit.com/product/3811?gclid=CjwKCAiAiJPkBRAuEiwAEDXZZdN0k6gopEcaCGBKvVWR_YBFFRyOOqmAiFx3_1TthxETDxXecGo_ZhoCfAwQAvD_BwE

Mini Skinny Neon Pixel Strip

mini LED light

$24.95 Each

1m – 2m

https://www.adafruit.com/product/2964?length=1

Lighting Tape Strip

Tape Strip

$8.95 Each

2 – 3?

https://www.adafruit.com/product/415?gclid=CjwKCAiAiJPkBRAuEiwAEDXZZQ3VhhcbDMvufS2GybwBge1zBLfJYWrOkZuZkYsYJYpU8I2vnJNpxRoCb5oQAvD_BwE

Lithium Ion Polymer Battery

Battery

$10 Each

2

https://www.adafruit.com/product/258

Areas of concern

What would be the best way to detect jumping motion (significant jumping motion) through code? I tried to use acceleration and shake function on MakeCode but none of them seem to work the way as intended.

 

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Project Post #3: Radio Outdoor Emergency Transmitter (ROET)

Radio Outdoor Emergency Transmitter (ROET)

Natalie Tack

Weekly Accomplishments:

I worked out a regular expression to get the location data from the GPS module, I also figured out how to output audio from the circuit playground express (CPE) to the radio, without an AUX cord. I had a setback this week, with the Arduino IDE not working for me. I wasn’t sure this was the issue at first, so I troubleshooted it and in the end had to uninstall the IDE and reinstall it.

By the end of this next week I plan to have the CPE output audio correctly to the radio, and correctly output the audio for GPS coordinates.

Images:

The below image is of the modules I received this week to complete my project (except the vibration module).

Material List:

  1. FM Stereo Radio Transmitter (already purchased and in use)
    1. Price: $20
    2. Quantity: 1
    3. Link: https://www.amazon.com/Adafruit-Stereo-Transmitter-RBDS-Breakout/dp/B00SK8ME4Y#
  2. GPS Module
    1. Price: $40
    2. Quantity: 1
    3. Link: https://www.adafruit.com/product/746
  3. Vibration Module
    1. Price: $2
    2. Quantity: 1
    3. Link: https://www.adafruit.com/product/1201?gclid=EAIaIQobChMI36npo8Hz4AIVDYdpCh2TdwvHEAQYAiABEgLWm_D_BwE

Areas of Concern:

My only concern currently is that all the connections I make to/from the CPE function correctly. Another struggle I had this weekend was making sure my connections were completed, it took a lot of trial and error with the wires to make sure everything was connected.

When I eventually solder the wires to the modules I’ll have to make sure that the connections work perfectly before soldering everything.

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Project Post 2: Lit Lehenga

Individual: Jessica Fernandes

Weekly accomplishments:

  • organized feedback and potential adjustments to project
  • considering different sensors for project
  • researched lights and power sources
  • thought about construction of putting lights into garment

Image:

This orientation of lights helped me consider ways to incorporate the lights into the embroidery/design of the fabric for aesthetic purposes when the lights are off.

My pictures of the lehenga, garment layers, and waist construction.

Materials

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Project Post 2: Flutter

Project name: Flutter (subject to change)

Team: Julia Kosier & Yiting Liu

Weekly accomplishments:

  • Julia: purchased color sensor, floral wire, and cellophane
  • Yiting: purchased side emitting fiber optics
  • Brainstormed ways to attach the sleeve that holds the color sensor – it may ease putting the wings on/taking them off for the sleeve to be removable in some way
  • Brainstormed materials – we researched fabrics to be used for the sleeve as well as fabrics we may use for the wings if we aren’t satisfied with the diffusion of the cellophane alone

Below is a similar light-up wing project we found while brainstorming that uses nylons to diffuse the light:

Changes to approach: As mentioned above, we’re exploring the potential of the sleeve being removable – i.e, via a zipper or velcro – to ease use

Below is a table of our materials purchased thus far

Part/Material Price Quantity Link to a purchase location
1 Side Glow Fiber Optic Cable 1.5mm~8mm Optical Fiber For Lighting Decorations

[1.5mm for 15 meters]

 $15.99 w/o tax 1 https://www.ebay.com/itm/Side-Glow-Fiber-Optic-Cable-1-5mm-8mm-Optical-Fiber-For-Lighting-Decorations/253189403496?ssPageName=STRK%3AMEBIDX%3AIT&var=552285229283&_trksid=p2057872.m2749.l2649
2 Color sensor $7.95 1 https://www.adafruit.com/product/1334
3 16 gauge floral wire $11.99 1 https://www.amazon.com/gp/product/B00T831TFA/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
4 Diffusing fabrics for sleeves $15.99 1 https://www.amazon.com/gp/product/B07GR4NCC9/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
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Project Post #2: Tattoo Circuits

Tattoo Circuits

John Compas

Weekly Accomplishments

I have already ordered, and received all the materials needed for first prototypes:

  1. Clear Covering Self-Adhesive 
    1. https://www.amazon.com/Magic-Cover-Adhesive-Contact-Projects/dp/B000BPF9QY/ref=sr_1_26?crid=QOW16D2H82TC&keywords=vinyl+adhesive+paper&qid=1551742619&s=gateway&sprefix=vinyl+ad%2Caps%2C195&sr=8-26
    2. Count: 1
    3. Cost: $5.50
  2. Silhouette Temporary Tattoo Paper
    1. https://www.amazon.com/Silhouette-MEDIA-TATTOO-Temporary-Tattoo-Paper/dp/B0043WJ3OA
    2. Count: 1
    3. Cost:  $8.99
  3. Spray Adhesive
    1. https://www.amazon.com/3M-General-Purpose-45-Adhesive/dp/B000PCWRMC
    2. Count: 1
    3. Cost: $5.77
  4. Speedball Gold Leaf
    1. https://www.amazon.com/Bememo-Imitation-Gilding-Crafting-Decoration/dp/B0722X91YR
    2. Count: 1
    3. Cost: $6.99

I have most of the electrical components I want to test and solder onto the first prototypes.

I also designed and laser cut a testbed on acrylic, to simplify the layout and testing process before I try it on skin.

I haven’t changed too much in my approach yet, but I need to do more testing of the actual vinyl cutter.

 

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Project Post #2: Virtual Vermin

Virtual Vermin

Jeff Brandt

 

Weekly Accomplishments:

  • Bought a cheap wireless computer mouse
  • Took apart a computer mouse and saw exactly what components were inside
  • Created new concept sketch for integrating the technology into the glove
  • Found sources for all materials that I think I will need

 

Images:

 

Changes to Approach:

After listening and reading the class’ responses from my final project pitch, I realized there was a lot that I hadn’t thought about in regards to the movement of a computer mouse. While some suggestions were currently out of the scope of the project, they did bring to light some issues I can look to improve on after my first iteration is complete. These were mainly the accuracy of the cursor and the ability to turn the glove on/off to be able to use when typing.

 

Material List:

Wireless Mouse // Quantity: 1 // $9.99 // https://www.amazon.com/gp/product/B015X2OD52/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

Conductive Fabric // Quantity: 1 sq. ft. // ? // Supplies in classroom?

Conductive Thread // Quantity: 2 yds. // ? // Supplies in classroom?

Negative Poisson Ratio Foam // Quantity: 1 sq. ft. // Free // Supplied by my research lab

Gloves // Quantity: 1 // $11.95 // https://www.amazon.com/Agloves-screen-gloves-texting-gloves/dp/B004A9FI2M/ref=sr_1_6?keywords=thin+glove&qid=1552266834&s=electronics&sr=1-6

Adafruit Circuit Playground // Quantity: 1 // Supplied // Already given in class

Short Flex Sensor // Quantity: 1 // $7.95 // https://www.adafruit.com/product/1070

Membrane LED Keypad // Quantity: 1 // $2.95 // https://www.adafruit.com/product/1333

Round Force Sensitive Resistor // Quantity: 3 // $7.00 // https://www.adafruit.com/product/166

Small Piezo Touchpad // Quantity: 3 // $0.95 // https://www.adafruit.com/product/1740