Fletchtronics

The TLC5940 from Texas Instruments is a neat chip. It can sink up to 17 volts and 120mA per output, driving up to 16 LEDs (or rows of LEDs, a matrix) at full brightness. It has 12 bit per channel pulse width modulation (PWM), which means 4096 levels of brightness control.

Here's one of my earliest projects, a fun messaging machine with an LCD and some random flashing LEDs. The action starts around 0:20, sorry I really should trim this vid.

This very simple Parallax Propeller VGA driver attempts to explore the basics of the VGA signal and how to drive it using the Propeller's useful WAITVID instruction.

Great, site is live! Stay tuned for all kinds of fun electronics projects, code, and just general interesting information about hobbyist engineering.

There's only a couple things here now, I'll be adding more projects soon, and I'll be blogging about my progress on certain projects. Check back again soon!

I hope you enjoy fletchtronics.net.

--fletch