Main Content

Building your own Motion Detecting Messenger

“Motion Detecting Messenger using ESP32 Camera & BME280. Story In this project we’ll create a Telegram bot for the ESP32-CAM AI-Thinker board with a PIR motion sensor, a BME280 temperature (humidity and pressure sensor). For this we will …

Chemists develop new method for water splitting

“A team headed by Münster University chemist Prof Armido Studer has developed a photocatalytic process in which water is activated using an oxidised triaryl phosphine as a reagent. Activation is a precondition for splitting water into its components. Hydrogen is …

Computer vision system marries image recognition and generation

“MAGE merges the two key tasks of image generation and recognition, typically trained separately, into a single system. Computers possess two remarkable capabilities with respect to images: They can both identify them and generate them anew. Historically, these functions have …

DIY Simple GU81 Tube Hybrid Amplifier (130 Watts RMS in a Class)

“The amplifier described in this project is “Hybrid”, but now the case is reversed and the Tube is used at the output, thus preserving all the positive features of a pure Tube Amplifier. Supplies: - GU81 Vacuum Tube - Microwave oven Trafo …

Electrochemical device captures carbon dioxide at the flick of a switch

“Disruptive technology could lower carbon-capture costs across all emission types New technology developed by Rice University engineers could lower the cost of capturing carbon dioxide from all types of emissions, a potential game-changer for both industries looking to adapt to …

EPFL spin-off closes the loop on PET recycling

“EPFL spin-off DePoly has developed a method for recycling polyethylene terephthalate (PET) at ambient temperature, even when it’s dirty or mixed with other plastics. The firm confirmed the feasibility of its method with a pilot capable of processing 50 …

ESPboy Walkie-Talkie module

“The ESPboy Walkie-Talkie module uses SA868 transceiver allows you to use your ESPboy as an Walkie-Talkie radio. You can buy this module ready-made or make it yourself. Parts: 1.1 SA868 module 1.2 LTK5128 amplifier board 1.3 MAX9814 …

Graphene photodetector shows unprecedented speed

“Optical data communication requires an ever-​growing need for faster devices. Scientists of the Institute of Electromagnetic Fields (IEF) have developed the world’s fastest photodetector up to this point. The combination of metamaterials and graphene has led to the …

How to Make a Small Desk Clock With Weather Station

“Hi beloved readers in this project I will show you how to make this Small Desk Clock with Weather Station This is a step-by-step article, I will guide you through the process of creating your very own desk clock using …

How to Monitor and Manage MPP Solar Inverter

“How to Monitor and Manage MPP Solar (Voltronic Axpert) Hybrid Inverter/Solar Battery Charger with Enapter EMS Toolkit and ESP32. Few time ago I decided to put some efforts for building my small solar power plant. The main purposes were …