Electronic – Help building acceleration detection device/circuit for the bike

accelerometersensor

I want to build a device using an accelerometer. Press a button after a bike ride and have a light turn on if during the journey I managed to attain a certain acceleration.

Thinking of using some kind of flip flop and switch (using a circuit to hold one byte?), but need help with details, how to set up the circuit. I would need to be able to reset it too. The cheaper I can get my results the better.

I have started learning how to use Arduino board, can make simple projects.

Best Answer

Option 1:

This is a perfect application of a microcontroller. Using a micro would allow you be a lot more flexible about the specific operation of your project. You could easily add features such as logging acceleration over the course of a trip, or specialized filtering of bumps.

Option 2:

If you want a solution based on discretes (either for learning or for speed of implementation).

schematic

simulate this circuit – Schematic created using CircuitLab