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Room Temperature Sensor (Automation)

Posted August 29, 2014 by Chris

"Abstract: Measure the temperature with one or more LM35DZ or DS18B20 temperature sensors, and then publishes the result when the value changes or every 20min. There is also a alarm function when the value goes higher/lower than the alarm limits."

Automated Scanner and Label Printer with Arduino control panels

Posted August 19, 2014 by Chris

"When I was 8 my mother gave me the book – ‘And then the engineer said …’. It consists of many simple manufacturing related stories about technological issues and how to solve them. The book meant to teach kids the key principles how accomplish seemingly insolvable things. The book is lost, but here is what I learned and still use on every occasion."

ASCOM Focused Stepper Motor Controller

Posted August 17, 2014 by Chris

"This project is based on Arduino Nano board that communicates with PC using serial protocol. Arduino Nano contains RS232 – USB converter, so the actual connection between the board and PC is made using standard USB mini cable. Stepper motor is controller using four data lines of Arduino board. These lines cannot control stepper motor directly. An additional stepper motor driver must be used."

Arduino Based RC Car – Hacked

Posted July 28, 2014 by Chris

"Last week my little friend (7 years old) bought a new RC car and challenged me for a race. So I bought new sets of batteries and cleaned my dusty RC car. Only to find out that it doesn’t work anymore. The forward and reverse movement are still good but the steering part was the problem. What a shame – I lost by default :). So I decided to hacked it and make it Arduino controlled."

My Bicycle Computer

Posted July 7, 2014 by Chris

"My first Physical Computing class assignment for this summer was to create a bicycle computer. This is a device that you stick on your bike and it tells you how fast you are going, what your speed is, etc. Following is how I made my own bicycle computer."

Control a DC motor with Arduino and L293D chip

Posted June 22, 2014 by Chris

"This is a quick guide with a bit of extra info (pin configurations etc..) that I’ve learnt along the way on how to use the L293D with the Arduino, showing that we can: A) Use a supplemental power source to power the DC motor B) Use the L293D chip to drive the motor C) Use a switch to change the direction of the motor."

Cooking GNUduino

Posted June 9, 2014 by Chris

"Today I fabricated the PCB for GNUduino (Arduino made with gEDA). I used screen printing to transfer the PCB layout. Screen printing is another way to transfer the PCB layout to the copper clad instead of the conventional toner transfer method."

Necomimi Arduino Cat Ears

Posted June 4, 2014 by Chris

"They are so dang cute. If you have ever seen the cool promo for the Necomimi Neurowear wearable set of cat ears that respond to brainwaves, you would want a set too. But it seems they may be vaporware since it hasn’t materialized on the market yet, not that I would be able to afford them though. Necomimi or nekomimi is Japanese for ‘cat ears’."

A XBee/Arduino based Wireless Sensor Network

Posted May 27, 2014 by Chris

"I developed this WSN for a coursework on my MSc and I’m hoping others will find this useful or at least interesting 🙂 I’ve just installed the first parts of this WSN back home to collect sensor data from various outbuildings and it will be part of my new Arduino controlled greenhouse project."

Microcontroller Project: Digital Faradmeter

Posted May 16, 2014 by Chris

"I got all the basic Arduino tutorials running, so I decided to try my hand at something a little tougher: a digital “faradmeter”, ie capacitance-measurer."