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Posted June 5, 2015 by Chris
"We are often asked on discussion boards, about conflicts between IRremote or IRLib and other Arduino Libraries. In this post, we present a sketch for ‘Simple Infrared PWM on Arduino’. This is the first part in a 3 part series of posts"
Posted May 6, 2015 by Chris
"Chlonos is an electronic gadget with a brain, a display, some sensors and a voice. It’s something interesting to put on your wall. It can measure temperature and light, it keeps track of the time and will tell you about it all."
Posted May 4, 2015 by Chris
"A ballistic chronograph is used to detect the speed of a projectile shot through a sensor port. The simplest type of chronograph design is based on finding the average speed of the projectile between two ports. This is as easy as dividing the distance between the two sensor ports with time taken to travel between the ports."
Posted April 9, 2015 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. I’ll try to port the storage and reporting backend to a Raspberry Pi later this week, initial trials seem to suggest that it should cope well with this task for my size of network."
Posted April 5, 2015 by Chris
"The presented home monitoring system consists of a star like structure of wireless nodes. This means that one node, the main node, collects information from the other nodes and forwards them to Raspberry Pi. The other nodes act just like wireless sensors – periodically measure physical values around the flat and send the measurements to the main node. "
Posted April 1, 2015 by Chris
"The Odhner Arithmometer was a very popular pinwheel calculator invented in Russia in 19th century by a Swedish immigrant called W. T. Odhner. Like most of pinwheel calculators, it worked with an engine formed by a set of linked wheels which could perform the four basic mathematical operations within a machine of reduced size."
Posted March 20, 2015 by Chris
"All projects start with an idea. It could stem from a need, a want, a proof of concept or a challenge. In my case, it was a conversation with one of my uncles. He told me about how, during his post-secondary studies, he had the idea to make a thermostat for his final project….I decided I would engineer his original ideal, while incorporating today’s advancements in technology and adding wireless communication with a PC."
Posted March 2, 2015 by Chris
"…when, with no humans in earshot to ask, I figured I would build a Magic 8 Thing and ask it if I could procrastinate any longer. Was this a lack of motivation to repair a cellphone charger or was it motivation to make a Magic 8 Thing. Irrelevant really as I got both things done in about 10 hours this weekend."
Posted March 1, 2015 by Chris
"Capacitive sensor is a technology sensing proximity position based on capacitive coupling. There are many different methods for producing a capacitive sensor. A simple one way to form an on-off output is by using two layers and a spacer in between. Through a voltage to conductive objects causes positive and negative charges to collect on each object."
Posted February 24, 2015 by Chris
"This project describes how to read the speed of a PC fan using Arduino board. It’s a good introduction to reading pulse duration and driving 7 segment led displays on Arduino. The text is written in Japanese but the link below will auto-translate to English."