Archive/Arduino App 썸네일형 리스트형 Unlock Without a Key Source: http://www.pcworld.com/article/230785/10_ways_to_make_your_home_geeky_cool.html Unlock Without a Key Now, if you really want to show off, why not unlock your front door without using the key? You don't need to be a Jedi for this trick: With some coding and the use of Twilio software, you can simply text "open" or "close" to the door to control it. In addition, the door will reply to conf.. 더보기 Solar Tracker Source: http://www.instructables.com/id/Arduino-Solar-Tracker/ How it works: I'd made a sensor of 4 LDRs with sheets between them The withe stips are the LDRs When the stick on top is righted to the sun or the brightest point the four LDRs get the same amount of light on them. Example1 when the light is left on top: right-top, right-down, left-down are in the shadow and left-top get the most lig.. 더보기 이전 1 다음
