Posted in Arduino on Apr 29th, 2012
I went to a local cafe for brunch today, and I couldn’t be more delighted to see this poster at the cafe: So is this where the name ‘Arduino’ came from? Not really. According to Wikipedia, the name of the open-source microcontroller Arduino comes from the following: Founders Massimo Banzi and David Cuartielles named the […]
Posted in Arduino, Sprinkler Projects on Oct 13th, 2011
After several months of hard work, my first ‘serious’ Arduino-based electronics project is up on the project page now. Check out the OpenSprinkler – An Open-Source Sprinkler Valve Controller. This is a collaboration between me and Chris Anderson (editor-in-chief of Wired Magazine). A video demo is included below. For details and how to order a […]
Posted in Arduino, Power switch on Oct 12th, 2011
Update: check out the RFToy — an easy-to-use standalone gadget to control remote power sockets. Also, support for remote power sockets have been added to OpenSprinkler firmware 2.1.1. For a while I’ve been looking for a way to switch household power line (110V) devices. One of the simplest options is to use a relay that […]
Posted in Arduino on Aug 8th, 2010
At times I feel short of digital pins on the Arduino to handle multiple button inputs. Here is an easy way to use 1 analog pin to handle many input buttons. The way it works is very straightforward: use a resistor network as voltage dividers, and then let each button feed a different voltage to […]
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