Close

Proof of Concept Tests

A project log for Persistence of Vision POV Display SAO

Accelerometer-based Hand-waved POV display with front and back LEDs, creating a 5 pixel x 12 char display. Message customizable via I2C.

michael-yimMichael Yim 10/04/2024 at 22:590 Comments

As a proof-of-concept to make sure something that this at least semi-works, I quickly put together a ver 0 prototype using an Arduino Pro Micro, an ADXL345 breakout board, a few LEDs and a breadboard. I know the technology works because others have done it before, but I wasn't quite sure if I could pull it off in time.

In this initial test, I attempted to display a simple letter "M" using the POV display. As shown in the video, it somewhat works, but the result isn’t quite as clear as I had hoped. One of the main challenges was getting the LED flashing timed correctly. Synchronizing the LED flashes with the motion proved to be trickier than I anticipated. The timing needs to be precise to create a clear and readable character, and even small variations can distort the letter. This experiment highlighted the complexity of fine-tuning the display to achieve smooth and accurate visuals.

Discussions