DIY Alarm Bike Lock (Shock Activated)

In this project I will be showing you how to create a simple shock activated alarm bike lock. Like the name implies, it does create an alarm sound when your bike is being moved around with permission. Along the way we will learn a bit about piezoelectric discs, amplifiers and a simple logic circuit. Let's get started!

Make sure to watch the video. It gives you all the information you need to create your own alarm bike lock.

Here you can find a parts list with example seller (affiliate links):

Aliexpress:

1x LiPo Battery: https://s.click.aliexpress.com/e/_d6jtyKS

1x TP4056 board: https://s.click.aliexpress.com/e/_dX8n0hp

1x Slide Switch: https://s.click.aliexpress.com/e/_dYGop3Y

1x LP2950 3.3V Regulator: https://s.click.aliexpress.com/e/_dSRyW5u

2x 20k, 2x 680k, 1x 68k, 1x 1M Resistor: https://s.click.aliexpress.com/e/_dTPpXjt

2x 1uF, 1x 100uF Capacitor: https://s.click.aliexpress.com/e/_d7dOwRz

3x 100nF Capacitor: https://s.click.aliexpress.com/e/_dU4FEsB

1x MCP602 OpAmp: https://s.click.aliexpress.com/e/_d8ZNgSi

1x 200k Trimmer: https://s.click.aliexpress.com/e/_dTFyPv5

1x CD4013 Flip Flop: https://s.click.aliexpress.com/e/_dYQhWVo

1x IRLML6344 MOSFET: https://s.click.aliexpress.com/e/_dZdyF94

1x 3.3V Buzzer: https://s.click.aliexpress.com/e/_d6hTbaq

Ebay:

1x LiPo Battery: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x TP4056 board: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Slide Switch: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x LP2950 3.3V Regulator: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x 20k, 2x 680k, 1x 68k, 1x 1M Resistor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x 1uF, 1x 100uF Capacitor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

3x 100nF Capacitor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x MCP602 OpAmp: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 200k Trimmer: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x CD4013 Flip Flop: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x IRLML6344 MOSFET: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 3.3V Buzzer: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Amazon.de:

1x LiPo Battery: https://amzn.to/3dCjupu

1x TP4056 board: https://amzn.to/2wAKaq9

1x Slide Switch: https://amzn.to/3aCxgGw

1x LP2950 3.3V Regulator: https://amzn.to/33Uel7W

2x 20k, 2x 680k, 1x 68k, 1x 1M Resistor: https://amzn.to/2ygOpYi

2x 1uF, 1x 100uF Capacitor: https://amzn.to/2WO9zXN

3x 100nF Capacitor: https://amzn.to/39uryFj

1x MCP602 OpAmp: https://amzn.to/2vVSU9T

1x 200k Trimmer: https://amzn.to/3dBsfA9

1x CD4013 Flip Flop: https://amzn.to/3bqczOi

1x IRLML6344 MOSFET: https://amzn.to/2UnEzwm

1x 3.3V Buzzer: https://amzn.to/3bz1hYc

Here you can find the schematic for the project as well as reference pictures of my own finished circuit. Use them to create your own circuit.

Here you can find the .stl files for the 3D printed housing along with reference pictures of my finished system.

You did it! You just created your own alarm bike lock!

Feel free to check out my YouTube channel for more awesome projects:

http://www.youtube.com/user/greatscottlab

You can also follow me on Facebook and Twitter for news about upcoming projects and behind the scenes information:

https://twitter.com/GreatScottLab

https://www.facebook.com/greatscottlab