Using A Bench Power Supply To Charge Lithium Ion Batteries
https://www.electronics-lab.com/using-bench-power-supply-charge-lithium-ion-batteries/
David Jones has another useful video tutorial about how to safely charge Lithium Ion and Lithium Polymer batteries with a bench power supply. The purpose of this tutorial is to learn how to use your lab power supply to charge your Lithium Ion battery when you don’t have a special charger circuit to do so. […]
Exploring Eagle CAD ULPs #2 – ‘Unrouted.ULP’ Zoom To The Last Left unrouted Wire
https://www.electronics-lab.com/exploring-eagle-cad-ulps-2-unrouted-ulp-zoom-last-left-unrouted-wire/
Welcome to the second post of the “Exploring Eagle CAD ULPs” series. Every week we will publish a new post about one useful ULP in Eagle CAD. “ULP” User Language Program is a plain text file which is written in a C-like syntax and can be used to access the EAGLE data structures and to […]
Tools for the Electronics Hobbyist Part 1- Graphical Components Tester
https://www.electronics-lab.com/tools-electronics-hobbyist-part-1-graphical-components-tester/
When I started to deal with Chinese electronics suppliers from websites like Alibaba, Aliexpress and Taobao, I discovered that there are huge amount of undiscovered tools from the Chinese market. They are not easily discovered, maybe due to the Chinese language barrier, especially when we deal with a Chinese website like Taobao or maybe because […]
7 Segment LED Based SPI Display using 74HC595
https://www.electronics-lab.com/project/7-segment-led-based-spi-display-using-74hc595/
Single Digit Big Display module using 74HC595 IC project will display large size 7 segment single digit number. 3.5inch height, which can be visible over large distance. More digit can be connected serially to each other easily trough connector. This circuit is a single digit seven segment big display using a set of 5 LEDs […]
OEMsecrets.com – Electronic Component Suppliers Price Comparison Search Engine
https://www.electronics-lab.com/oemsecrets-com-electronic-component-suppliers-price-comparison-search-engine/
There are a number of electronic component search engines in the industry, but finding the best price can often be time intensive. Quite often purchasers are simply looking to locate the most competitive price from suppliers and fast! OEMsecrets has launched the first price comparison search engine in the electronics market. The UK shopping site […]
Hall sensors consume no more than 1.6 mA
https://www.electronics-lab.com/hall-sensors-consume-no-1-6-ma/
Comprising both switch and latch types, the TLx496x series of Hall sensors from Infineon offers precise switching points, stable operation, and low power consumption. At 1.6 mA, the devices consume 50% less power than comparable products, and the 5-V versions consume just 1.4 mA. by @ Susan Nordyk @ edn.com: All of the TLx496x series […]
Photovoltaic simulator system adds automated MPPT Efficiency Test
https://www.electronics-lab.com/photovoltaic-simulator-system-adds-automated-mppt-efficiency-test/
An added test facility enables test of a 1,500V photovoltaic (solar energy) inverter’s static and dynamic maximum peak power tracking (MPPT) according to European Standard EN50530, with a single command, creating downloadable photovoltaic I-V curves, plus static and dynamic EN50530 test reports. by Graham Prophet @ www.edn-europe.com Photovoltaic simulator system adds automated MPPT Efficiency Test […]
Touch Weather Station using a DHT22 Sensor and a Raspberry Pi 3 with TKInter
https://www.electronics-lab.com/touch-weather-station-using-dht22-sensor-raspberry-pi-3-tkinter/
educ8s.tv tests the new Raspberry Pi 3 board, by building a simple but useful project. A few months back, the Raspberry Pi 3 board was released. It is a great new board because it now offers WiFi and Bluetooth connectivity out of the box! It uses a quad core processor which operates at 1.2Ghz and […]
A miniature persistence-of-vision board
https://www.electronics-lab.com/miniature-persistence-vision-board/
axio.ms published an update of the board and firmware of their SMD POV display. This device is simply 8 bright SMD LEDs and an AVR uC and makes use of the Persistence of Vision effect. You wave it about, and it writes messages in the air, with no wires, liquids or unpleasant bending! Some would […]
VHF Frequency Counter with PC Interface
https://www.electronics-lab.com/vhf-frequency-counter-pc-interface/
Scott has published a new build: This is the general idea behind how this frequency counter works. It’s so simple! It’s entirely digital, and needs very few passive components. sn74lv8154 is configured in 32-bit mode (by chaining together its two 16-bit counters, see the datasheet for details) and acts as the front-end directly taking in […]