http://www.circuitelectronics.info Electronic Circuit Design, Repair, Software, Components & Theory Wed, 28 Jul 2010 01:38:06 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 http://www.circuitelectronics.info/open-electronic-circuit/electronic-keypad-lock-120v-onoff/ http://www.circuitelectronics.info/open-electronic-circuit/electronic-keypad-lock-120v-onoff/#comments Wed, 03 Feb 2010 19:39:18 +0000 admin http://www.circuitelectronics.info/open-electronic-circuit/electronic-keypad-lock-120v-onoff/ I’m looking for an electronic lock w/ keypad. I’m looking for something to open/close and electronic circuit (like to turn on/off a light bulb). I’ve searched all over the internet, only finding electronic DOOR locks (I don’t want to use these). I was hoping to find one that has 12 keys (0-9, #, Ӿ), an LED/LCD display (to show keys hit, open/close, or anything else), and 3 LED’s (they would be to indicate ELECTRICITY FLOWING, CORRECT, INCORRECT). Anyone know where I could find something like this? Thanks!

]]> http://www.circuitelectronics.info/open-electronic-circuit/electronic-keypad-lock-120v-onoff/feed/ 3 http://www.circuitelectronics.info/free-electronic-circuits/question-about-electrical-symbols/ http://www.circuitelectronics.info/free-electronic-circuits/question-about-electrical-symbols/#comments Sun, 31 May 2009 05:10:02 +0000 admin http://www.circuitelectronics.info/?p=230 I am building an electronic lock from instructions that I have found online. I have found a pretty easy-to-follow circuit diagram, but there is one part that its confusing to me. In this circuit diagram, http://www.free-electronic-circuits.com/circuits/electronic-combination-lock.html, all the way at the right/top, there is a section that looks like a coil and has the text "K1 6v" next to it. Can anyone shed some light onto what that means? It would be greatly appreciated.

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