Name: Using the Arduino to send audio via pulse width modulation @brainwagon
Uploaded: 2011-07-18T01:29:31-0400
Duration: 8 min 17 s
Description: Ive been experimenting with using the 555 timer to generate PWM audio, but I knew that the Arduino could also do PWM. So, I decided to make a small test: I recorded a second of audio at 8000Hz, and then stored it in the Arduino program memory. Each byte then gets sent to the PWM output, which modulates an LED. It works!

Maiden Flights of my F-22 foamie @brainwagon

Uploaded September 2012 | Updated September 2026, 1 day ago

Mark H. from eastbay-rc.blogspot.com has been helping me build and fly my first foamie aircraft. The result was this F-22 inspired foamie, which (due to my complete inexperience in RC flying) I asked Mark to test fly. Sadly, my iPhone was almost full, therefore I only recorded a short bit of the initial flight. Later, we strapped an $8 keychain video camera to the nose, and shot a couple videos in flight. Not bad!

Some more flying, with a couple of near mishaps...

Scrappy triggers my Raspberry PI running Motion...

First attempt at my own motion capturing hummingbird camera...

First moon footage from my converted MS Cinema HD webcam

Using the Arduino to send audio via pulse width modulation