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.

=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
Known: Phone: Android OS Wireless Protocol: Bluetooth Basic Game Style: Fishing Microcontroller: FireBeetle ESP32

Generator: Model: Huaban Hand Crank Generator Rated Power: 30W Output Voltage: 0-28V DC Output Current: 0-2A Max Current: 3A Weight: 480g Dimensions: 106mm X 64mm X 39mm Maximum Rated Speed: 120 RPM

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

Buck-Boost Converter: Model: DROK 200234 Rated Power: 30W (40W with better heat sink) Input Voltage: 5-30V DC Input Current: 5A Output Voltage: Adjusted to 5V DC Output Current: 3A (4A with better heat sink) Switching Frequency: 180KHZ Dimensions: 68mm X 29mm X 21mm

Unknown: Additional Game Inputs: Game Players: Voltage Divider Values: Limitations?:

=Final Design= TBD

=Team Members=

=Additional Documentation=

Project Schedule

Spring Schedule Rev. Feb 25, 2020

Spring Schedule Rev. April 21, 2020

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

Meeting Minutes April 14, 2020

Meeting Minutes April 19, 2020

Meeting Minutes April 21, 2020

Meeting Minutes April 28, 2020

Meeting Minutes May 5, 2020