Some advices:
- Don't start with a advanced project as a beginner.
- Divide the project into smaller parts and start to gain skills in the parts before combining them.
Example:
- Measure velocity
IR
- Compute the measured velocity inte a human understandable value
Raspberry Pi Pico
- Transmit values wireless
Bluetooth serial
- Display value
OLED display
And then start to search for tutorials on the different parts above.
There is also some valuable reading material at
https://discord.com/channels/818384379197784084/1194546099575341117