CD4051

CD4051 is basically an analog and digital multiplexer as well as demultiplexer. It is most commonly know as analog controlled switch. It has low ON impedance and very low OFF leakage current. It dissipates a very low power over full VDD-VSS & VDD-VEE voltage ranges. eliminatiing channel overlapping and wide ranges of analog signals are its main feature. It can be used analog to digital as well as digital to analog converters and analog & digital multiplexing.

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Arduino Interactive LED Coffee Table

“I made an interactive coffee table that turns led lights on under an object, when the object is placed over the table. Only the leds that are under that object will light up. It does this by effectively using proximity …

Universal Touch-Free Keypad Adaptor for Existing Keypads

“A device that mounts on top of a traditional keypad and transforms it into a touch-free and bluetooth controllable one. Nowadays we are all facing the Covid-19 pandemic; we know that there are multiple ways to get infected and one …

Project  FreeDeck

FreeDeck

“The FreeDeck aims to be a Free/OpenSource replacement for Elgatos Streamdeck and similar. It works by creating a config file with the FreeDeck Configurator, loading it onto an SDCard and inserting it into the FreeDeck. You don’t need …

Autopilot for Sailing Boats (Automatic Steering System)

“Let’s take a break during navigation while Autopilot follows the route, control it with remote control! Story Preface: I love sailing alone because when a man is on the sea with his sailing boat he got everything he needs …

Multi-Key Electronic Flute

“Sensors and Synthesis Musical instruments such as the piano allow musicians to play in different keys on a single instrument. In contrast, bamboo flutes are designed for only one key. This means flute players must own a different flute for …

Solar Energy in the Cloud

“You’d think that solar energy and clouds are not the best match, but in this project I’ll show you how you can make it work! The future is here, solar panels everywhere! In the last couple of years …

Multiplexing 8 Different Analog Signals Into One

“Everyone goes crazy for microcontrollers, but is there a way to channel my input signals into one bus? The answer is yes! Let’s say we want to read 4 potentiometers (or variable resistors), and 3 buttons for some reason …

How to Build Your Own Anemometer Using Reed Switches, Hall Effect Sensor and Some Scraps on Nodemcu. - Part 1 - Hardware

“Since I started with the studies of Arduino and the Maker Culture I have liked to build useful devices using junk and scrap pieces such as bottle caps, pieces of PVC, drink cans, etc. I love to give a second …

A simple 8-channel receiver voting controller for enhanced repeater coverage and usability

“One of the often-overlooked means of improving the coverage of an amateur radio repeater is the use of multiple receivers in a voting configuration. It’s often the case that a user can hear the repeater fine, but for whatever …

Interfacing with a Toy - Process and Example

“There are many ways in which to interface a toy with an electronic system. The main considerations are: What types of control does the toy have? With what can these types of control be replaced? To what should the replacement …

Programmable Sequenced Wavetable Synthesizer

“For our final project, we created a wavetable synthesizer capable of playing back short user-programmable sequences with a large range of timbres. We decided to create a fun, easy-to-use wavetable synthesizer with just enough parameters to offer a large sonic …

Texas Instruments

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 …