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Tools for the 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...
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Ultrasonic Anemometer Project Progress
Lukas Fässler discuss about his anemometer project progress and what tests he has performed so far. In the mean time I managed to do some rudimentary testing and now feel confident to take orders....
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Temperature-to-period circuit provides linearization of thermistor response
by S Kaliyugavaradan, Anna University, Madras Institute of Technology, Chennai, India; Edited by Brad Thompson and Fran Granville -November 10, 2005 Designers often use thermistors rather than other...
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Circuit provides cold-junction compensation
Mark Maddox @ edn.com has a design idea on cold-junction compensation using AD7708. The accuracy of any circuit or system that uses a thermocouple to determine the temperature of a process is limited...
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A full-featured, portable weather data recorder
Do you wonder how to build a personal weather station with data logging capability? Well, Jesus Echavarria, a electronic engineer and DIY hardware maker from Spain, has shared the details of his...
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Short circuit tracer uses low power
Dan Meeks shares his design idea on edn.com: This Design Idea presents a low power short circuit finder that capitalizes on the ear’s sensitivity to changes in frequency. The heart of the circuit is a...
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Tools for the Electronics Hobbyist Part 2- LC200A L/C Meter
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...
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App note: Engineering scaling
Scaling large values to be fed on limited input digital meters, application note from Murata. [via] It is oftentimes necessary to attenuate “large” input signals down to a level that more closely...
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FFTs and oscilloscopes: A practical guide
Arthur Pini @ edn.com published a guide on how to use FFT found in most modern oscilloscopes. The FFT (Fast Fourier Transform) first appeared when microprocessors entered commercial design in the...
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ACS714-30A Current Sensor module
The Allegro ACS714-30A provides economical and precise solution for AC or DC current sensing in automotive systems. The device package allows for easy implementation by the customer. Typical...
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Analog Capacitor ESR Tester
TallMan’s lab @ runawaybrainz.blogspot.com build a nice looking and simple analog ESR capacitor meter based on a EEVBlog forum topic. I finally got round to making my capacitor ESR tester this week...
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12$ 30MHz signal generator using Arduino
A signal generator is an electronic device that generates electronic signals and waveforms. These electronic signals are either repeating or non-repeating as per the requirements and field of...
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Capacitor self-diagnostics
Peter Demchenko discuss about a design idea on how to test capacitors in circuit. The electrolytic capacitor is far from being the most reliable electronic component. One of its failure modes – a...
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Temperature alarm for boiling milk
Domen Ipavec shares his temperature alarm for boiling milk. Temperature alarm uses an Atmel attiny841 microcontroller, DS18B20 high temperature waterproof temperature sensor from adafruit, 2×16...
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Withings Body Cardio Teardown
Nick tipped us with his latest teardown of an advanced weighing scale. He writes: The Withings Body Cardio is the latest in the brand’s range of smart health-centered devices, and the second Withings...
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Low-cost current monitor tracks high dc currents
Susanne Nell @ edn.com has a design idea on how to measure high dc currents. To measure high levels of direct current for overload detection and protection, designers frequently use either a...
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Flex Sensor to bargraph monitor using PIC16F886
Tiny Bar-Graph display provide a Red color, bright, easy to read display which is proportional to the force applied on the FLEX sensor surface. This Bar-Graph has 20 segments in single color and...
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Semiconductor radioactivity detector
Robert Gawron has been working on a semiconductor radioactivity detector project: Currently I’m trying to make a working version of a radioactivity detector that uses semiconductor as a sensor. It’s a...
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An ultrasonic parking sensor project from Ch00ftech: After electing to use the PING))) sensor exactly as directed, I needed to build the rest of my circuit. I wanted to build something robust that...
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IdIoTware SD Card Temperature Logger
In this tutorial at hackster.io you will learn how to log data from LM35 temperature sensor values to an SD card and store it as CSV file. In order to build this project you need the following parts:...
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