Instructables: exploring - technology - electronics - pcb - led Sun, 29 Mar 2015 09:29:39 PDT BLOX v1.01 Solar Arc Reactor
Solar Arc Reactor - More DIY How To Projects]]> BlondeJamesDean The idea of Iron Man's infinite power Arc Reactor is awe-inspiring and led me to create the next best thing..a solar Arc Reactor night light! How it works The solar cell charges a lithium ion battery during the day and at night the LED Arc Reactor style ring switches on.The circuit uses a LDR esp...
By: BlondeJamesDean

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Sat, 14 Feb 2015 10:49:56 PST
The Nerd Watch
The Nerd Watch - More DIY How To Projects]]> othermachine Hello! Welcome to another Other Machine project tutorial! I'm Sam DeRose, a former Other Machine Co. Summer Intern. I created The Nerd Watch last summer while working at OMC.The Nerd Watch displays the time in binary when the button is pushed. The watch shows the hour and minutes by flashing two LED...
By: othermachine

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Wed, 7 Jan 2015 13:54:17 PST
Micro 555 timer circuit
Micro 555 timer circuit - More DIY How To Projects]]> BlondeJamesDean One of the smallest 555 I.C circuits you'll ever see! The Idea So far this has just been a project of mine to shrink down a 555 timer circuit as small as I can using micro electronics.It has later evolved into making the circuit dark activated, and now the idea is to use LED in a solar jar & have...
By: BlondeJamesDean

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Thu, 25 Sep 2014 12:19:20 PDT
VU-METER Mock5 A mono VU-Meter with power supply. Parts: 10K potentiometer 1.2K R 470uF cap LM7812 12V transformer MIC BR610 Square Bridge Rectifier LM3915 3x 0.1uF caps. 10 LEDs misc. This is a simple VU-meter that uses the LM3915. The input are the 2 floating connections. It uses 12 V AC that is converted into ...
By: Mock5

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Sat, 30 Mar 2013 11:04:53 PDT
LED Driver (5 LEDs)
LED Driver (5 LEDs) - More DIY How To Projects]]> Mock5 This is a simple LED driver/power supply for 5 LEDs. Parts: It uses the LM7812 positive voltage regulator, 2x 0.1uF Capacitors 1000uF/16V Capacitor RBV - 406 rectifier 5 LEDs (I used transparent green) A 12V transformer ~500mA For Typical Forward Voltage use 78 - 100 ohms resistor for Max Forward V...
By: Mock5

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Wed, 13 Mar 2013 12:05:29 PDT
Logic Love Heart
Logic Love Heart - More DIY How To Projects]]> passmadd Hello everyone :) This is a Logic Love Heart I created for an old flame this year (we have a kid and we're still good mates, plus I like winding her up). Some say love isn't logical, well it is now! So sit back, grab a beer and I'll show you how I made this. Firstly, I had some fundamentals for t...
By: passmadd

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Sun, 24 Feb 2013 15:28:02 PST
Soldering a LED to the 'Wrong' Side of a PCB AndyGadget Why would you want to mount LEDs on the copper side of a single sided board?  How about if you want to mount a board directly behind a front panel with the LEDs showing through holes in the panel.  You can't put them on the usual side because the other components would stop the board fitting flush t...
By: AndyGadget

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Mon, 20 Aug 2012 12:56:41 PDT
LED Sign - Sequencer
LED Sign - Sequencer - More DIY How To Projects]]> WWC This is an LED sign for my Internet shop here in the Philippines. It lights each letter progressively until all are lit then keeps the word on for one more sequence, then off. Repeat. I didnt use the 2N3053"s shown in the diagram as they are 7 times more expensive than the BD135"s i replaced them w...

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Sun, 22 Jul 2012 19:04:04 PDT
Electronic Controller Device (Analog)
Electronic Controller Device (Analog) - More DIY How To Projects]]> Sparker94 I made this analog circuit for two reasons. One: To stop my wires from melting due to too much current. Two: To limit the load on the alternator. Instead of the lights on a trailer going through the tail light circuit on the vehicle, which caused mine to melt, It will pull current directly from the ...
By: Sparker94

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Sat, 3 Mar 2012 19:45:04 PST
how to make a very simple NPN transistor tester
how to make a very simple NPN transistor tester - More DIY How To Projects]]> Jimmy Proton in this instructable i will show you how to make a very simple NPN transistor tester. you will need: a NPN transistor (to test)  a 10K OHM resistor a 470 OHM resistor a LED a on/off switch and a 9V battery (5-12V) making it. here are the schematics. and a picture of my finished product.
By: Jimmy Proton

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Fri, 25 Jun 2010 16:49:16 PDT
Throbbing/Fading/Flashing LED with 555 Timer
Throbbing/Fading/Flashing LED with 555 Timer - More DIY How To Projects]]> MrBeta This tiny circuit is a simple way to make a fading led without having to program chips or writing code. Just a few simple components and you're ready to fade all day. The end result is a constant fade up and fade down just like a Mac on standby. Try it! See how small you can build it. If you like it...
By: MrBeta

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Thu, 16 Jul 2009 18:47:50 PDT