WeMOS D1 ESP8266 Over the Air (OTA) update
https://www.electronics-lab.com/wemos-d1-esp8266-air-ota-update/
In this video educ8s.tv is going to show us how to wirelessly update the code of our Arduino project, using the WeMOS D1 ESP8266 based board. This is an impressive, and very useful feature. A few weeks ago, we took a first look at the very promising new board, the WeMos D1. You can watch […]
Quantum Dots Boost Solar Cells
https://www.electronics-lab.com/quantum-dots-boost-solar-cells/
R. Colin Johnson @ eetimes.com discuss about quantum dots applications and how scientists use them to boost photovoltaic output. LAKE WALES, Fla—Quantum dots are already being used commercially to boost the output and expand the color range of ultra-high-definition televisions, eliminating the need for the rare earth elements for which China as virtually cornered the market. […]
LED Weather Forecast using Raspberry Pi
https://www.electronics-lab.com/led-weather-forecast-using/
AughtNaughtZero @ instructables.com posted his latest project, a LED matrix visualizing data from a weather website such as temperature, pressure, humidity, wind speed etc. This project utilizes a 6 x 16 matrix of RGB LEDs to visualize a weather forecast pulled from the Weather Underground API. A Raspberry Pi runs a python program designed to fetch […]
Raspberry Pi Wifi module without USB
https://www.electronics-lab.com/raspberry-pi-wifi-module-without-usb/
This board will let you add WiFi functionality to your Raspberry Pi Zero without having to sacrifice the only available high speed USB port. The board is based on ESP8266 Wifi module. WiFi on a Raspberry Pi using the HAT connector and an ESP8266. The goal of this project is to add WiFi to the […]
ESP8266 controlled with Android app (MIT App Inventor)
https://www.electronics-lab.com/esp8266-controlled-android-app-mit-app-inventor/
Rui Santos from Random Nerd Tutorials tipped us with his latest tutorial on how to build an Android app using the MIT App Inventor software that allows you to control the ESP8266 GPIOs: ESP8266 controlled with Android app (MIT App Inventor) – [Link]
How to Select a Resistor
https://www.electronics-lab.com/how-to-select-a-resistor/
In this guide Sanket Gupta @ octopart.com explains how to select a resistor from a range of common resistor types. In this blog, we will explain all the different types of resistors, their merits and demerits, and popular applications. We have included some recommendations for commonly used resistor series with high supply chain availability from the Common […]
Dual DC Motor Driver For Robot with L298
https://www.electronics-lab.com/dual-dc-motor-driver-robot-l298/
Dual Motor L298 H-Bridge Control project can control two DC motors connected to it. The circuit is designed around popular dual H-Bridge L298 from ST. This board can be configured to drive a single motor with high current rating also. This can be achieved with the help of jumpers on the board. An onboard 5V […]
Review & Teardown of a cheap GPS Jammer
https://www.electronics-lab.com/review-teardown-cheap-gps-jammer/
phasenoise has posted his teardown of a cheap GPS Jammer. This GPS jammer generates a 1575.42 Mhz interference to prevent your GPS unit from receiving correct positioning signals. Generally, “jammers” — which are also commonly called signal blockers, GPS jammers, cell phone jammers, wifi jammers, etc. are radio frequency transmitters that are designed to block, jam, […]
Teardown: 12V AC adapters
https://www.electronics-lab.com/teardown-12v-ac-adapters/
Michael Dunn has done three teardowns of the worst 12V adapters and what he found is interesting. Yes! Can you believe it? This board used to be in another adapter housing, or more likely, in an end-product. It seems Chinese manufacturing has sunk to a new low: repackaging used and/or surplus power supplies. On the plus […]
Solar Cell IV Curve Tracer
https://www.electronics-lab.com/solar-cell-iv-curve-tracer/
This instructable shows how to build a photovoltaic cell curve tracer using Arduino and OPA549S OPAMPS. This projects shows how to create an IV (Current and Voltage) Tracer that can be used to teach the electrical characteristics of a solar panel. This project was created as part of an Electrical and Computer Engineering capstone project […]