Spin It To Win It – Portable Charger And Game Controller

The goal of the project is to improve the existing Spin IT to Win IT device so that it is more complete, durable, reliable, fun, and easy to use, requiring only a short set of instructions. The project uses a hand crank generator to turn mechanical energy into electrical energy, and store it in a battery to charge devices like mobile phones. The crank also serves as the controller for a fishing themed game that is played wirelessly via bluetooth on an android phone, adding an entertainment aspect to the otherwise mundane task of charging a battery by hand.

=Background= The previous Spin IT to Win IT team had the goal of using a hand crank generator to turn mechanical energy into electrical energy, and store it in a battery to charge small devices like cell phones. An additional goal was to use the crank as a controller for a game, which also monitored the power generated. The team created a proof of concept device, which created power with a hand crank, stored it in a battery capable of charging phones, and sent rough crank voltage data to a phone.

=Problem Definition= Our problem was that the prototype was impractical. It was bulky, heavy, fragile, had no enclosure, and lacked a working game. The use of a heavy lead-acid battery and a large bulk of loose wires, PCB’s, and breadboarded circuits made moving and setting up the device difficult.

Design Considerations
Our design decisions were made while taking a number of factors into consideration. These factors were different for each technical role, but generally consisted of the following: Size, Practicality, Durability, Reliability, Cost, Availability, Capacity, Complexity, Ease of use, Entertainment value, and how well it met team goals and existing specifications.

Deliverables
Hand Crank Generator (Doubles As Game Controller)

DC Converters & Battery

Communications & Data Transfer

Game & Data Display

Durable Packaging & Connections

Specifications
System: Phone: Android OS Game Style: Fishing Wireless Protocol: Bluetooth Low Energy 4.2 Average Power Produced At Steady State: 7.14W Average Charging Current At Steady State: 1.4A DC System Charging Voltage: 5.1V DC Typical Speed While Charging System: 35 - 45 RPM Total System Weight: 2lb 6oz (1088g) Dimensions of System (Not Including Crank): 157mm x 94mm x 29mm

Generator: Model: Huaban Hand Crank Generator Rated Power: 30W Output Voltage: 0-28V DC Output Current: 0-2A Max Current: 3A Weight: 616g Dimensions: 106mm x 64mm x 39mm Maximum Rated Speed: 120 RPM

Buck-Boost Converter: Model: DROK 200234 Rated Power: 30W Input Voltage: 5-30V DC Input Current: Up to 5A Output Voltage: Adjusted to 5.1V DC Output Current: 3A Maximum Switching Frequency: 180KHZ Dimensions: 68mm x 29mm x 21mm

Battery: Model: Vancely K111 Capacity: 10,000 mAh Cell Type: Lithium Ion Input Voltage: 5V DC Input Current: 2.1A Output Voltage: 5V DC Output Current: 2.4A X 2 Dimensions: 124mm x 67mm x 15mm

Sampling Circuit: Operating Voltage: 3.63V - 4.17V (Directly from battery cell) Current Draw During Operation: 4.4mA Average Power Consumed: 18mW Voltage Divider Resistor Values: 963kOhm & 74.8kOhm Biasing Diodes: 2x 1N4733A In Series Op-Amp Buffer: AD817AN

Microcontroller: Model: Beetle ESP32 Operating Voltage: 3.63V - 4.17V (Directly from battery cell) Current Draw During Operation: 68mA Average Power Consumed: 272mW Programming Via Arduino IDE

=Final Design= TBD

=Team Members=

=Additional Documentation=

Project Schedule

Spring Schedule Rev. Feb 25, 2020

Spring Schedule Rev. April 21, 2020

Fall Schedule Rev. September 15, 2020

Fall Schedule Rev. December 8, 2020

Budget

Final Project Budget

Team Meeting Minutes

Meeting Minutes Jan 28, 2020

Meeting Minutes Feb 4, 2020

Meeting Minutes Feb 7, 2020

Meeting Minutes Feb 11, 2020

Meeting Minutes Feb 16, 2020

Meeting Minutes Feb 18, 2020

Meeting Minutes Feb 23, 2020

Meeting Minutes Feb 25, 2020

Meeting Minutes March 1, 2020

Meeting Minutes March 3, 2020

Meeting Minutes March 8, 2020

Meeting Minutes March 10, 2020

Meeting Minutes March 22, 2020

Meeting Minutes March 24, 2020

Meeting Minutes March 29, 2020

Meeting Minutes March 31, 2020

Meeting Minutes April 5, 2020

Meeting Minutes April 7, 2020

Meeting Minutes April 12, 2020

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Meeting Minutes April 19, 2020

Meeting Minutes April 21, 2020

Meeting Minutes April 28, 2020

Meeting Minutes May 5, 2020

Meeting Minutes August 27, 2020

Meeting Minutes August 31, 2020

Meeting Minutes September 9, 2020

Meeting Minutes September 14, 2020

Meeting Minutes September 16, 2020

Meeting Minutes September 21, 2020

Meeting Minutes September 23, 2020

Meeting Minutes September 28, 2020

Meeting Minutes September 30, 2020

Meeting Minutes October 5, 2020

Meeting Minutes October 7, 2020

Meeting Minutes October 12, 2020

Meeting Minutes October 14, 2020

Meeting Minutes October 19, 2020

Meeting Minutes October 21, 2020

Meeting Minutes October 26, 2020

Meeting Minutes October 28, 2020

Meeting Minutes November 2, 2020

Meeting Minutes November 4, 2020

Meeting Minutes November 9, 2020

Meeting Minutes November 11, 2020

Meeting Minutes November 16, 2020

Meeting Minutes November 18, 2020

Meeting Minutes November 30, 2020

Meeting Minutes December 2, 2020

Action Items

Final Action Item Report December 8, 2020