What it does: A device which can record spatial points, which then can use them to calculate the distance between them and show it on a display

Scope: A more convenient way to measure the distance between 2 points

Starting idea: The classic measuring tools, like a measuring tape

Usefulness: It is useful for me because it allows me to get a high grade for the PM course

The code is separated in 5 files:

• project.ino: the main of the project
• distance.h: functions useful for using the VL53L0X sensor
• common.h: utility functions, mainly for I2C communication
• display.h: functions useful for using the SSD1306 display
• gyro.h: functions useful for using the MPU6050 sensor

There are 2 hardware components that are controlled manually via IO:

• laser diode: which has the power controlled via a digital pin; the current is small enough that no transistor is needed
• button: the spatial recordings are done on releasing, and the laser diode is active only during pressing

In the end the whole device will be encased in a 3D printed case, designed by me

Arduino modules:

• MPU6050 sensor: for gyroscope data, as the orientation of the device is important to map a point in space relative to origin
• SSD1306 display: after the device calculates the distance, it will be shown on the display
• VL53L0X sensor: a laser distance measuring device
• Laser diode: an additional laser to highlight the point the device is looking at

Export to PDF