Category Archives: Coding

Bearing Raceway Speedometer

Posted on 2021-04-30 by M. Eric Carr

A TTGO board, 3D printed enclosure, and some optoelectronics are turned into a speedometer for steel bearing balls. Continue reading →

Posted in 3D Printing, Arduino, C, Coding, Digital | Leave a comment

TTGO T-Display I2C pin location

Posted on 2021-02-21 by M. Eric Carr

I2C is broken on the TTGO T-Display. Fortunately, there’s an easy fix. Continue reading →

Posted in Arduino, C, Coding, Digital, Troubleshooting | Leave a comment

It from Blit

Posted on 2021-01-31 by M. Eric Carr

The Sierpinski Triangle is a shape that almost seems to want to get itself produced… Continue reading →

Posted in BASIC, Coding, Fractals | Leave a comment

Magical Music Machine

Posted on 2020-12-02 by M. Eric Carr

With a few musical rules, random number generators can create something not entirely unlike music… Continue reading →

Posted in BASIC, Coding, Math, Music | Leave a comment