May 25th: Research and Design + Build a Prototype.

I finally decided to start this project. I've been wanting to make something useful and about earthquake since I lived in a place with lots of earthquake.

The function I planned to have are: - detect earthquake - record the acceleration data for further research - send notification to discord

Here's a quick picture explaining this:

So the things I would need: - EPS32 (controlling the sensor) - An accelerometer (of course, for obtaining data) - A case (for dust protection) - A data server (for collecting data)

I'll use an ESP-32 dev module to control the hardware because I'm more familiar with it.

Next, I'll need an acceleration sensor. I ask Gemini for suggestion on the sensors, but it seemed like ADXL345 and MPU6050, which I already have, are the most sensitive sensor I can find.

So I read through the data sheet of the ADXL345 and MPU6050.

After all, I decide to use MPU6050 because its extensibility. It has an accelerometer and a gyroscope, which might make it more possible for something more complicated than only an accelerometer.

I use a breadboard to hold my sensor, which it flat enough at the bottom to make the sensor stable, and also I glued a little piece of plastic that somehow just fit the height of the sensor to hold the sensor's other end.

Then, I found a library for MPU6050 and spend about one hour trying to understand the example program.

Total time spent: 4h