August 10, 2012 AT 3:00 am

LED Clock using Raspberry Pi #piday #raspberrypi @Raspberry_Pi

Clock Web

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:


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2 Comments

  1. 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

  2. Oh, and I’m using Occidentalis, too! :)

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