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Pi On The Wall – wall mounted home server

Posted December 28, 2014 by Chris

"This is Part 2 of a series of blogs regarding the development of a wall-mounted server based on the Raspberry Pi, featuring WiFi and a colour touchscreen."

Capacitive Touch Sensing with an ADC Pin

Posted December 26, 2014 by Chris

"…I decided to look into capacitive touch buttons. The big issue unfortunately for me was that you usually need a separate chip for capacitive touch sensing. With some tricks, you can however use a normal microcontroller to do the job. Even using only a single pin and resistor."

.NET Micro Framework For Driving Xmas LEDs

Posted December 25, 2014 by Chris

"The Micro Framework is one of the newest kids on the .NET block, but it does something really rather wonderful. It brings embedded development within the reach of any C# programmer. If you know C# and love Visual Studio, you can now get started building hardware and controlling it with your software. Moreover, it lets developers achieve one of their most cherished dreams, to control their festive lights using programs that they have written."

Biometric Sensing Computer Mouse

Posted December 24, 2014 by Chris

"We have designed a biometric sensing computer mouse that takes into consideration heart rate and galvanic skin response in order to detect the different conductance of the skin when a person is under stress or when not. In order to stimulate stress, we invite the user to play the Falldown game. As the user is getting closer to the end of the game, his/her stress level is expected to increase, the ball will start to move faster and the game stimulates the user to increase his/her concentration on the game."

LED Display Over Bluetooth With Android

Posted December 22, 2014 by Chris

"I wanted to make use of bluetooth capability somehow, and thought it would be neat to send a text message to the display. In addition, I decided change up a few things: receive bluetooth text message up to 64 chars and scroll it across the panel, set the time via bluetooth, consolidate 2 push buttons into 1 for manual time adjustment and make some noise with the piezo I put in there"

The Simplest Line Follower

Posted December 21, 2014 by Chris

"Last week I finally got time to do a bit of work. I made my own PCB :). I wish I had learned this back in college. It have would saved me so much time. What PCBs did I make? An improved line follower circuit."

Super Nintendo Pi

Posted December 20, 2014 by Chris

"Super Nintendo Pi is an emulation system that focuses on emulating SNES games. The enclosure is an SNES console, including the game controllers. This project is not limited to just playing SNES ROMS, but other ROMS as well."

Building a 8 Channel Solid State Relay Board

Posted December 19, 2014 by Chris

"Have you ever seen videos of those insane Christmas light displays? Those displays are usually controlled by large banks of solid state relays turning on and off each strand to time with the music. I bought a bunch of these relays on eBay and wanted to make my own general purpose controller that I could use in other projects."

Christmas Lights With Individual LED Control

Posted December 18, 2014 by Chris

"I wanted to create a truly personalized one without ruin me either. Two ideas immediately came: a microprocessor to control all the lights, but at the cost of a relatively large strand wire, even though the use of crossing wire and diodes, can reduce the number of son, this is not very satisfactory and place a microprocessor per lamp, but until the price of each processor exploded the price of the most basic garlands."

ENC28J60 and Arduino

Posted December 18, 2014 by Chris

"Today’s tutorial is a bit different: I’m going to show you how to make your ethernet shield wireless! You can find many Wi-fi shields for Arduino: starting from the official one, up to shields based on Microchip’s ICs. Sometimes however it could be easier to connect an Arduino to the Wi-fi network using your ethernet shield in conjunction with a wireless router."