Using a Yocto-PowerRelay to switch on a desk lamp from a computer is quite easy. However, to have to power on a computer to switch a lamp isn't really convenient. This week, we present a wiring allowing you to control a lamp both from a computer and from a simple switch, followed by a very handy application: a desk lamp controlled by a screen saver.
Someone asked us recently if it is possible to drive a Canon EOS camera using a Yocto-Relay and information found on this site. We answered yes, of course, but not without a serious temptation to give it a try. Follow the guide, and don't miss the demo !
Someone asked us this week if it was possible to use a Yocto-Knob to detect a contact made by bare fingers, as done by the famous Makey Makey. The answer is yes, of course, but we will not leave it at that... (don't miss the video at the end of the post !)
Last week, we built an anemometer allowing you to measure wind speed by USB. This week, we describe the complementary tool: a wind vane allowing you to know the wind direction. With USB reading of course, otherwise it's not fun.
Yocto-Meteo owners regularly ask us if Yoctopuce intends to put on the market a sensor to measure wind speed. The problem is that an anemometer contains more mechanics than electronics. We looked at some models available on the market. We concluded that the cheap anemometers were too difficult to hack and that the models designed to be interfaced were way too expensive. We are therefore going to tell you how to create your own anemometer using a Yocto-Knob.
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