--Group Members
Quanrui Bai, quanrui2 ECE120
Haoran Tang, haorant3 ECE110/ECE120
--Introduction
Purpose: People can lock their bikes automatically instead of wasting few tens of seconds. When they put their bikes in parking space, they just input 4 digit password, and then use this password when they leave. Besides, this parking lock has a self-protection system, when someone wants to decode the password, if he has tried three times or more, there will be an alarm to show that there is a bike thief.
Background research: When I first arrived UIUC, I noticed the importance of bike when you are studying in such a big campus. Many students have their own bike, but it always be troublesome when they lock their bike, for it usually takes about 30 seconds to lock and another 30 seconds to unlock. This bike lock can make this process shorter and more convenient. Besides, it is a more efficient way to keep bikes away stealing, because its burglar alarm. I have seen so many bikes been stolen include my classmates.
--Design
We have a block diagram to show its components:
System Overview:
--Parts
Arduino Uno board; speaker; 12-button keypad; LEDs; flip-flop and logic chips.
--Challenges
Because bikes are different, so
Where is the identical parts in bike?
if no identical parts, how to lock bikes?
The code implementation
The circuit design