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This BFO (beat frequency oscillator) metal detector system demonstrates the practical application of analogue signal mixing and processing techniques. Beat frequency oscillator pro...
Designed by Hans Camenzind in 1971, the NE555 timer IC went on to become one of the most widely manufactured electronic components ever made. Originally designed to replace bulky a...
A regulated DC power supply is one of the most useful tools for electronics hobbyists, students, and repair technicians. During circuit development and testing, different electroni...
This Universal Power Supply can provide fixed +12V and –12V DC outputs along with an adjustable output ranging from approximately 1.2V to 22V DC, making it suitable for testing, re...
Learn how to construct a robust DMOS-based board featuring mute and standby controls. It easily drives 4 or 8 Ω loads for your next custom stereo or speaker project.
Learn the basics of designing and building an employee counter using the CD4026BE IC and an IR sensor module. This project demonstrates how the circuit counts people when installed...
In the previous article in this series, ‘Open Source Model Rocket: Design And Simulation (Part 1),’ published in June issue, the model rocket was designed using simulation software...
It combines microcontroller, analog, sensing, data-conversion, and power functions to help engineers rapidly prototype and validate embedded-system architectures. Microchip Technol...
An open-hardware electronics trainer brings a breadboard, LEDs, buttons, displays and support for several popular development boards onto a single compact platform. Josh Kittle has...
A reference design shows how to build an 80V source and measurement unit for chip testers that can supply, measure, and test semiconductor devices. Automated test equipment (ATE) u...
This project brief describes how to build a compact dual-channel power amplifier module that delivers 38 W per channel into 4-ohm speakers using STMicroelectronics' STA540 audio am...
Save on soldering and get your next project running faster.
Designing electronic circuits can be tricky, but the right tools make all the difference! Our Circuit Design Calculators for Engineers and Students are free-to-use tools that help...
Monitoring how many people enter or exit a space is essential in many environments such as offices, factories, libraries, and meeting halls. Manual tracking is unreliable and impra...
Раз уж я начал учить школьников как собирать на макетной плате цифровые схемы (в рамках подготовки демонстраций к мероприятию торговой палаты города Маунтин-Вью, Калифорния), то во...
Two reference hardware platforms are being developed to support electronics design, prototyping, and product development. Science of Cambridge, a UK-based electronic design company...
Imagine a radio that listens to satellites instead of FM stations. Using a Raspberry Pi and an RTL SDR dongle, it is possible to receive weather images transmitted from space and d...
The ESP32-S3 Automation System, as presented by Tech Panda, highlights a sophisticated approach to modern automation with its emphasis on adaptability and precision. At its core, t...
Cheap builds that can save serious money.
Modern Wi-Fi signals can do more than transfer data. These radio waves can be analysed using channel state information (CSI) to detect movement, estimate location, track activity,...
Сделай сам — покажи другим, как надо. На старте сезона DIY Лемана Тех и Хабр пришли с таким запросом к сообществу авторов, и они не подвели. В рамках сезона вышло множество статей...
Electronic Plastic is an online museum with pictures and info of more than 900 handheld electronic games of the retro kind, as collected by Jaro Gielens, who has been collecting th...
This project brief describes how to build a compact, single-supply preamplifier module that converts the output of an electret microphone into a usable line-level audio signal.
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