Collin Cunningham’s awesome videos are always great to watch. This time, Collin shows how to build a Color Organ, which is a light display that responds to sounds around it,...
Posted by John Baichtal | Thursday May 16th, 2013 12:00 PM
Categories: Electronics | 3 Comments
Instructables user SarahandDillon made a differential light meter with a TL082 op amp; it compares the readings of two photo sensors. This works in the exact same way as the...
Posted by John Baichtal | Monday May 13th, 2013 10:33 AM
Categories: Electronics | 2 Comments
Instructables user laserjocky built this function generator for a term project in school. It’s capable of producing a square, triangle, and approximate sine wave up to a frequency of around...
Posted by John Baichtal | Wednesday May 8th, 2013 9:30 AM
Categories: Electronics | 3 Comments
Instructables user diy_bloke built this op-amp controlled pump for his garden, using the classic 741 operational amplifier. He wrote a very detailed how-to including showing how to etch a PCB,...
Posted by John Baichtal | Monday May 6th, 2013 8:14 AM
Categories: Gardening, Electronics | 2 Comments
Each month this year, we’re exploring a different electronic component, delving into what it is, how it works, and how you use it in projects. Last month we covered resistors,...
Posted by John Baichtal | Wednesday May 1st, 2013 1:00 PM
Categories: Electronics | 4 Comments
Chris Connors shows his technique for storing resistors. Executive summary: he sorts by the 3rd color band! Over the years, I’ve seen and inherited parts bins with every drawer labeled...
Posted by John Baichtal | Monday April 29th, 2013 11:30 AM
Categories: Electronics | 5 Comments
Instructables user caitlinsdad modified a Mho the Resistor plushie with color bands glued to PVC rings serving as a resistor value decoder. He also modded a Ruby the Red LED...
Posted by John Baichtal | Thursday April 25th, 2013 2:30 PM
Categories: Electronics | No Comments
I love this Ohm’s poster by ZarthCode’s Anthony Clay. In addition to the classic Ohm’s Law triangle (“It’s the Law!” the poster proclaims) it also includes a resistor color chart,...
Posted by John Baichtal | Monday April 22nd, 2013 1:00 PM
Categories: Electronics, Education | 5 Comments
Right now I’m sorting all my resistors into plastic bags, and it’s kind of a lengthy process! Anthony Clay wrote a program called EESPeak that speaks the numeric value when...
Posted by John Baichtal | Thursday April 18th, 2013 10:30 AM
Categories: Electronics | 4 Comments
What if you need a 10-ohm resistor? No, not 9.92 ohms, but precisely ten? Gareth of Let’s Make Robots shows how simply filing a little bit away from the resistor’s...
Posted by John Baichtal | Monday April 15th, 2013 11:30 AM
Categories: Electronics | 6 Comments
MAKE alumnus and supernerd Collin Cunningham rhapsodizes about everyone's favorite current-fighting backbone of circuitry--the resistor--in this classic MAKE video. Collin talks about Ohm's Law, resistor color codes, and using pencil...
Posted by John Baichtal | Thursday April 11th, 2013 8:30 AM
Categories: Electronics | 2 Comments
Instructables user science4u used this simple arrangement to create an ad hoc paper resistor — a strip of heavy paper with pencil lead limiting the flow of current, with precisely...
Posted by John Baichtal | Monday April 8th, 2013 10:30 AM
Categories: Paper Crafts, Electronics | 1 Comment
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