Raspberry Pi | Embedded Lab

Category Archives: Raspberry Pi

Controlling servos with hand motion

Posted on August 26, 2015 by R-B One comment

Justin Platz and Kurt Clothier from Pubnub illustrates how to control a physical object with the motion of two hands. They used Raspberry Pi and the Leap Motion controller for this purpose. The two servos mirror the movement of the user’s two individual hands. Attached to the servos are 8×8 RGB LED Matrices, which react to each finger movement on your hand. The Leap Motion communicates directly with the Raspberry Pi via PubNub Data Streams with minimal latency, and the Raspberry Pi then drives the servos. Leap Motion is a powerful device equipped with two monochromatic IR cameras and three infrared

Raspberry Pi Bandwidth Monitor

Posted on August 3, 2015 by R-B Leave a comment

Archie500 has posted instructions about how he built a Raspberry Pi-based monitor for his internet bandwidth into and out of his house. This is a bandwidth monitor using a Raspberry Pi and an OLED display to graphically show the internet bandwidth into and out of our house. A video showing it working is above. Sometimes if the internet is slow or not working very well it can be hard to tell if it’s because three other people are watching YouTube videos of if there’s some other problem with the internet connection. By checking the bandwidth monitor you can see straight

This energy wristband monitors energy usage at home

Posted on July 22, 2015 by R-B Leave a comment

Matthew Venn has designed a prototype energy wristband that would tell you when there is a change in electrical energy usage at home through a a gentle vibration. The wristband also consists of a 4-LED bargraph to display the current usage. A wristband that tells you energy changes in your home. It connects via a Raspberry Pi computer to a base station like a ‘current cost’ or similar. When a change in energy usage occurs, the wristband vibrates and a small LED bargraph shows your current usage from 1 to 4. Realtime energy use can be queried by pressing the button.

2D Pen Plotter using old CD drives and Raspberry Pi

Posted on July 21, 2015 by R-B Leave a comment

Norbert Heinz’s 2D Pen plotter is built using two repurposed CD-ROM drives along with four H bridges, an additional servo and a Raspberry Pi as main controller. Powered by a 6V lead acid battery, his plotter is WLAN enabled and is controlled by a Laptop through a secured shell session. Check out this cool demo showing the plotter in action.

PiClock: A RPi-based clock and Weather display

Posted on June 13, 2015 by R-B One comment

Hackaday user Kevin Uhlir‘s PiClock is a Raspberry Pi-based fancy clock with weather forecasting and RADAR map display features. The clock retrieves the Weather data from Weather Underground using their API (http://www.wunderground.com/weather/api/ ) and the maps are from Google Maps API. An HDMI monitor is interfaced to RPi for displaying the information.

« Older Entries Recent Entries »