Introduction
Hello everyone, thank you to the organisers for giving me the opportunity for this experiment.
A short introduction of myself. I have finished a diploma in Electrical Engineering and I am waiting to further my studies in a university in a few months' time. I love to play with Electronics from a hobby level too.
Experiments Planned
I aim to break up my blog post into a few parts.
Firstly I will aim at a beginner's level because I feel there's not a lot of resources which guide step by step for complete beginners. It shall be a very simple test by comparing the threshold to detect vibrations and explaining how everything is wired up. This will check if the sensor itself is functional too.
I will demonstrate how to use an ADC on a microcontroller to visualise the vibration sensitivity on a PC. Lots of things can be done with this data. We can differentiate hard taps and soft taps for example
After understanding how a vibration sensor works then I will aim at a higher level.
The application I will do is to characterize the RPM of a spinning device by looking at the FFT dominant frequency.
This is done by applying the FFT algorithm using data from the STM32. I will attempt to look for patterns produced by different vibrating devices (ie. computer fan or hard disks) using the vibration sensor attached to it.
I have a good understanding of how it works but I am not 100% sure how it will react in real life, because theory and real-life can be very different. Regardless, I will do my best and I will share my findings with you all. I hope to share successful stories with you.
