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Dr. Monk’s DIY Electronics Blog: LED Clock using Raspberry Pi. Simon writes
Okay, so if you were going to make a simple LED 4 digit clock, you probably wouldn’t start with a Raspberry Pi. But I wanted to test out I2C on the Pi and Adafruit’s I2C LED displays looked like a good bet. I also used a level converter to convert the Pi’s 3.3V I2C to the 5V I2C required by the LED module. To recreate what I have done here you will need:
Each Friday is PiDay here at Adafruit, be sure to check out our posts, tutorials and new Raspberry Pi related products. Have you tried the new “Adafruit Raspberry Pi Educational Linux Distro” ? It’s our tweaked distribution for teaching electronics using the Raspberry Pi.
FEED
Very helpful! Kudos to Simon. Here’s the red i2c 7-segment display atop a Pi Plate running his clock demo:
https://picasaweb.google.com/lh/photo/blqupnCZTJfLnuXgHBIZtNMTjNZETYmyPJy0liipFm0?feat=directlink
I just powered it via 3.3V so no logic level conversion was needed.
Cheers,
Drew
Comment by Drew Fustini — August 10, 2012 @ 5:06 am
Oh, and I’m using Occidentalis, too!
Comment by Drew Fustini — August 10, 2012 @ 5:15 am