The BeagleBone Black (BBB) is similar to the Raspberry Pi in that it is an ultra-low cost computer. This means that some standard computer features had to be cut out in order to reduce costs. For example, your laptop and computer have a little coin-battery-powered ‘Real Time Clock’ (RTC) module, which keeps time even when the power is off, or the battery removed. To keep costs low and the size small, an RTC is not included with the BBBB. Instead, the BBB is intended to be connected to the Internet via Ethernet or WiFi, updating the time automatically from the global ntp (nework time protocol) servers.
For stand-alone projects with no network connection, you will not be able to keep the time when the power goes out. So in this project we will show you how to add a low cost battery-backed RTC to your BBB to keep time!
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 — Former Arduino co-founder Gianluca Martino is working on an Arduino programmable
Wearables — Scale it down
Electronics — A short lesson in RF protection
Biohacking — Halo Sport Prosumer Grade tDCS
Sorry, the comment form is closed at this time.