WarmUp Boot

Team Members

Jackson Kleeman, Class of 2019, Systems Engineer

Daniel Reiff, Class of 2019, Systems Engineer

Allen Salama, Class of 2019, Systems Engineer

Nathan Schmetter, TA

Overview

No matter how thick the socks and no matter how many foot warmers you stuff into your ski boot, there are some days when the conditions are just too brittle for comfort. We aim to solve this by developing a ski boot heater in which a rechargeable battery pack fitted to the boot powers up two heating pads, one on the top of the foot and the other on the toes, meshed within the boot. And to ensure customization and to combat overheating, there will be a temperature gauge the user may interact with to adjust the temperature to his/her liking. This interface will also be fixed to the boot, and have thickness so that it may double as an encasing for the Arduino and circuits. Each heating pad will be linked to a button, with a green LED on top of it to indicate whether it is on or off, and an accompanying dial under each button to allow for the user to manually adjust the warmth of each pad. A row of 4-6 LED's will be located at the top of the interface to illustrate how hot each pad is.

Objectives

• To create an efficient closed loop circuit between the battery pack and heat pad that does not lose power
• To prevent the boot from overheating
• The panel boot warming system should be waterproof and unaffected by the elements
• To create a user control mechanism for the temperature of the boot that is easy to use, safe, and accurate

Challenges

• Learning how to use Arduino in creating a user interface for temperature control
• User Solar to power the circuit
• Encasing all exposed electrical components to not only make the product look more polished, but more importantly, to ensure the system is waterproof
• Learning how to 3-D print for encasing and potentially solar panel mounting and solar panel positioning for efficiency
• Creating an effective circuit
• Ensuring there is enough voltage in our battery pack to power the heating pad, without compromising comfort of functionality of the ski boot
• Figuring out how to attach the solar panel onto the ski in a way that is both strong yet matches the ski’s flexibility

Initial Design Sketches and Resources

Gantt Chart

Budget

1. Filament for 3d printer (provided)
2. Arduino (provided)
3. 5V heating pads (x2)- $14.85 ($.495 each) https://www.sparkfun.com/products/11289
4. Assorted LED Pack - $2.95 https://www.sparkfun.com/products/12062
5. Silver Metal Knob (x2) - $3.00 ($1.50 each) https://www.sparkfun.com/products/10001
6. N Channel MOFSET (x2)- $1.90 ($0.95 each) https://www.sparkfun.com/products/10213
7. Diode 10 pack-$1.50 https://www.adafruit.com/products/755
8. 10K ohm resistor 20 pack-$0.95 https://www.sparkfun.com/products/11508
9. Digital Temperature Sensor Breakout -$4.95 https://www.sparkfun.com/products/13314
10. Breadboard - Mini Modular- $3.95 https://www.sparkfun.com/products/12043
11. 330 ohm resistor 30 pack- $0.95 https://www.sparkfun.com/products/11507
12. 2 10 packs of male/male jumper wires $6.12 ( $3.06 each) http://www.digikey.com/product-detail/en/MIKROE-513/1471-1232-ND/4495596?WT.mc_id=IQ_7595_G_pla4495596&wt.srch=1&wt.medium=cpc&WT.srch=1&gclid=CjwKEAiA8dDEBRDf19yI97eO0UsSJAAY_yCSOmvzw4zeLBUZnSqCsXBz6Mxfu6eCiSwL7x72d9s1NxoC7Azw_wcB
13. Thin film flexible solar panel- $13.95 https://www.seeedstudio.com/2V-1W-Thin-film-Flexible-Solar-Panel-p-1856.html
14. Long Male/Female Jumper cables $4.50 http://www.ebay.com/itm/like/181940005899?lpid=82&chn=ps&ul_noapp=true
15. Skis/boots - $40 https://stlouis.craigslist.org/spo/5966731361.html (still waiting on a response)

Total: $