«

»

May
03

Adding a battery buffered realtime clock to the Beaglebone Black provides accurate time when no Internet is available. I used an Epson RX8025NB module, and connected it to I2C bus 1. Under Ubuntu 14.04 LTS a set of rtc drivers already exists, and enabling the clock was a simple command. The biggest work was to enable I2C bus 1 on pins P9-17 and 18, and for battery charge protection, soldering the tiny 2mm schottky diodes (SOD-323) into place.

DSC_0024 1024x768DSC_0026 1024x768DSC_0016 1024x768

Leave a Reply

Your email address will not be published.

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>