Light is a very popular means of communication. Today, optical fiber communication is the backbone of telecommunication and internet. Light is guided through a fiber optic cable in such systems to achieve low-attenuation and high speed data transmission. Question is: Is it possible to use light for communication without a guiding medium? The answer is […]
Laser for sending music over a distance Read More »
Smartphones and mobile devices are diving deeply in our lives and make a lot of things much easier than before. So, having a smartphone or a mobile device became one of life’s necessities for everybody. But unfortunately, there is still a big challenge for people with limited use of their arms to use and benefit
LipSync – An Assistive Device For Smartphone Use Read More »
“Arduino Freezer Temperature Sensor” is an Arduino based project which works as an indicator to notify you when the freezer isn’t work properly. This project was created by “John Saunders”. To make this project, you will need these parts: Arduino Nano, most of other Arduino boards can be used. USB cable, to connect the Arduino
Save Your Food with Arduino Freezer Temperature Sensor Read More »
Description As recently stated on hackaday: “A timepiece is rather a rite of passage in the world of hardware hacking”Presenting: A personal time base. Depending on current location, elevation, and velocity we all experience very real time dilation effects. Time does not pass at the same rate for everyone. The “Project GREAT” experiment in 2005
Rubidium Disciplined Atomic Clock Read More »
Optomyography is a novel, non-invasive, non-contact optical method to measure muscular signals of the human body for diagnosing muscular disorders. It is also considered as an emerging technique for making better human-machine interfaces. Matt, Amrit, and Maneesh conducted an optomyogram experiment at Cornell University to sense the movement of fingers and wrist, and eventually to
Optomyography: A novel approach of detecting muscular signals using optical sensors Read More »
Do you wonder how to build a personal weather station with data logging capability? Well, Jesus Echavarria, a electronic engineer and DIY hardware maker from Spain, has shared the details of his design of a very professional-looking, full-featured, and portable weather data recorder that is capable of recording ambient temperature, humidity, and light level into
A full-featured, portable weather data recorder Read More »
First, let me introduce you my project. I made an Alarm clock with extended functionality & thermometer and humiditymeter. Everything started when my friend (who used to bring me some old electronic rubbish and I used to check if there’s not something useful) brought me some cashing register display similar like that. When I first
ATmega Alarm Clock and Thermometer Humidity meter Read More »
This project describes a DIY wireless temperature and humidity monitor for kids’ or infant’s room using the Arduino platform, and inexpensive and easily available ASK transmitter/receiver modules. On the transmitting end, an Arduino nano senses the ambient room temperature and humidity using the DHT22 sensor and transmits the data to a receiving end Arduino over
Wireless temperature and humidity monitor for baby’s room Read More »
Mike Rankin created this tiny sensor board with an ARM Cortex M0+ microcontroller and OLED display: 0miker0’s Blog: SAMD21G Sensor Board It’s pretty tiny so a 4 layer board made the whole job easier. The top and bottom are pretty much dedicated for components, layer1 are tracks and power traces, layer2 is a ground plane.
Atmel SAMD21G Sensor Board Read More »
How to make wearable display – OLED SSD1306 display run by ATtiny85 Step by step tutorial, with no steps to skip. The main goal of this tutorial is to show how to make wearable display run by Attiny85 and OLED display SDD1306. Due to running campaign for ATtiny25/45/85 PCB TINY CHEAP VERSATILE Arduino compatible on
ATtiny85 and SSD1306 wearable display Read More »
