Other
“Watering plants can be a hard task, especially for those who have a garden in their house. I have to do this every day and it will be taking forever to get this done daily. So I made this project …
“Line follower is an autonomous robot which can detect a specific colored line painted on a surface of different contrast, such as white on black. In this project I used infrared transmitters and receivers to track the black strip on …
Texas Instruments Inc. (TI) is an American technology company that designs and manufactures semiconductors, which it sells to electronics designers and manufacturers globally. Headquartered in Dallas, Texas, United States, TI is one of the top ten semiconductor companies worldwide, based …
“A couple of years ago we built a fun system that would allow DJs to mix music tracks in interesting ways. Our design called for an input device that would allow the DJ to quickly seek through a track and …
“So apparently the PID regulated current source using a switching regulator is a pretty popular thing, something that is searched for online quite often, at least that is what the blog stats indicate. In this post I will be taking …
“Greetings. This instructable lists a charging lithium cell capacity. Other testers I’ve found work by discharging the cell completely, but I wanted to have ready to use cells with a standarized voltage. The monitor works by Ohm’s Law …
“A recent ebay fishing expedition yielded an interesting little part for the very reasonable sum of about five pounds. It’s a voltage regulator module from a Dell PowerEdge 6650 Xeon server. I originally bought this because I had the …
“I made surprisingly good ECG from a single op-amp and 5 resistors! An ECG (electrocardiograph, sometimes called EKG) is a graph of the electrical potential your heart produces as it beats. Seven years ago I posted DIY ECG Machine on …
“Taking your pulse is as simple as holding a finger to your neck or wrist and timing the beats with your watch. But if you want to record the data or use it to trigger events, you need to turn …
“In this project I will show you how to create a custom LED sign that reacts to the loudness of your music, just like a VU meter does.”
“First of all, this SWR meter in this article is not exactly homebrew, as I based the circuit on the schematic in the excellent book Arduino Projects of Amateur Radio. Although I bought the book and respect the copyright of …
“Oscilloscopes and Signal Generators are two essential electronics devices to create and test electronic circuits. Unfortunately, these devices are very expensives for students starting electronics, or makers who want use electronic circuits in their creations just once… The idea of …