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Doorbell With Face Recognition

“Motivation Recently, there has been a wave of robberies in my country which are targeted at elderly people in their own homes. Usually, access is granted by the occupants themselves since the visitors convince them that they are caregivers/nurses …

Engineers mix and match materials to make new stretchy electronics

“Next-generation devices made with new “peel and stack” method may include electronic chips worn on the skin. At the heart of any electronic device is a cold, hard computer chip, covered in a miniature city of transistors and other semiconducting …

ESP32 LoRa Sensor Monitoring with Web Server

“In this project, you’ll build a sensor monitoring system using a TTGO LoRa32 SX1276 OLED board that sends temperature, humidity and pressure readings via LoRa radio to an ESP32 LoRa receiver. The receiver displays the latest sensor readings on …

ESP32 Relay Module – Control AC Appliances (Web Server)

“Using a relay with the ESP32 is a great way to control AC household appliances remotely. This tutorial explains how to control a relay module with the ESP32. We’ll take a look at how a relay module works, how …

ESP8266 MP3 Sound Machine v2

“Last summer, I made an ESP8266 MP3 Sound Machine using ESPHome to play calming sounds when my son goes to sleep. I used ESPHome to develop the firmware so it could communicate with my Home Automation platform, Home Assistant. Well …

Freezer Alarm Relay

“Our freezer is in a utility room which is isolated from our living space. Occasionally the freezer door doesnt shut properly and the alarm goes off. The problem is that we cant hear it if we are in our living …

Hermetically sealed semi-conductors

“New encapsulation technique protects electronic properties of sensitive materials Tomorrow’s electronics are getting ever smaller. Researchers are thus searching for tiny components that function reliably in increasingly narrow configurations. Promising elements include the chemical compounds indium selenide (InSe) and …

How to Create a 50cm Cube With All Necessary Features and Use 3-dimensional Space to Grow Plants

“How to create a 50cm cube with all necessary features and use 3-dimensional space to grow plants. On June 17, 2019 I published my last Instructables about the Card Scanner. Full of motivation and anticipation I was already thinking about …

JEDEC Publishes Update to Universal Flash Storage (UFS) Standard

“JEDEC Solid State Technology Association, the global leader in the development of standards for the microelectronics industry, today announced the publication of Universal Flash Storage (UFS) version 3.1, JESD220E. In addition, an optional new companion standard, JESD220-3: UFS …

Laser Shooting Game (Star Wars)

“In this article I will share arduino based star wars project that you can make on a budget. This project is a laser shooting game that will suit you as a homemade product. This project consists of 2 sub projects …