A MAX7219 driven Display, controlled by an ESP8266 SoC and MQTT This project describes how to connect a MAX7219 to an ESP8266 Chip and let it act as a MQTT client. Its basically my ninHOME Node Firmware where you can optionally add a MAX7219 Display. ESP8266 MAX7219 Dot Matrix Display...

Engineers at Cornell university have created a new system for measuring vitals, which could revolutionize hospital experience for everybody. Usually, getting sick means having to go to the hospital which because of today´s procedures takes almost all your day (if not more), and most of...

Hi guys welcome to this tutorial. Today we will be building a simple temperature monitor using the DS18B20 sensor with a Nokia 5110 LCD Display and an Arduino mega. The DS18B20 digital temperature sensor gives a 9-bit to 12-bit Celsius temperature readings and also has an alarm...

A convincing artificial fire effect for the holiday season, using NeoPixel LEDs, an Arduino UNO, and a cool mist module. The instructions for this are actually pretty simple, basically you just need to get the materials, and put them all together. The only technical part is soldering...

Ultrasound, also known as sonography, is a medical procedure which uses sound waves to get images from inside the body. It is used to help guide biopsies, diagnose causes of pain, examine a baby in pregnant women, diagnose heart conditions etc. High- frequency sound waves are...

  After $5.5 millions collaboration and a lot of work during the past four years of engineers at Imec, the next-generation electrodes called Neuropixels probe were designed to record hundreds of neurons in the brain. Imec is an international nano electronics research center...

Elizabeth Bustamante @ snapeda.com lists the top 10 crystal oscillators used today. She writes: A crystal oscillator is an electronic circuit that generates an electrical signal with a very precise frequency. To achieve this, it uses the mechanical resonance of a vibrating crystal made...

This instrucatables show how to make an ESP8266 version WiFi Analyzer clone. WiFi Analyzer is a handy app in Android, it help to visualize the WiFi signal information around you. It is very useful for helping select a right channel for setting a new AP. If you selected a channel that...