Christmas tree set up in my daughter’s high school locker. Based on an Arduino/Waveshield combo, it will play one of 6 random songs and display one of 6 sequences on the LED string. The LEDs are the 12mm tri-colored string available on adafruit.com where the Arduino and Waveshield were also purchased. When the door is closed, the magnetic door switch will power off the system.
Adding quality audio to an electronic project is surprisingly difficult. Here is a shield for Arduinos that solves this problem. It can play up to 22KHz, 12bit uncompressed audio files of any length. It’s low cost, available as an easy-to-make kit. It has an onboard DAC, filter and op-amp for high quality output. Audio files are read off of an SD/MMC card, which are available at nearly any store. Volume can be controlled with the onboard thumbwheel potentiometer.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — Amazon may take on Alibaba?
Wearables — Enclosures help fight body humidity in costumes
Electronics — Staple Jumpers
Biohacking — “Health And Fitness Data Is Useless”
No comments yet.
Sorry, the comment form is closed at this time.