100MHz Frequency Meter using ATtiny414
Test/Measurements

100MHz Frequency Meter using ATtiny414

David Johnson-Davies published a new project on his blog. This project is a simple frequency meter capable of measuring frequencies up to 100MHz with an accuracy of 0.002%. Based on an ATtiny414, it demonstrates the use of Timer/Counter TCD0 and the Event System: I recently wanted to...

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How the Switching Frequency Affects the Performance of a Buck Converter
Power

How the Switching Frequency Affects the Performance of a Buck Converter

The buck converter uses an inherent switching action to regulate voltage. This switching frequency can affect the performance of a buck converter,and is thus very important. This application report analyzes the influence of switching frequency on buck converter performance in terms of...

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Build Your Own Cheap Antenna Analyser
ArduinoMcu

Build Your Own Cheap Antenna Analyser

Ham radio is the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, etc. Developing a ham radio project may requires using an antenna analyser, a device that is used for measuring input frequency and...

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Rubidium Disciplined Atomic Clock
Timer

Rubidium Disciplined Atomic Clock

Cameron Meredith build a real-time-clock module controlled by a rubidium frequency standard, and since it also includes a GPS clock he can track local time dilation effects by comparing the two. An I2C multiplexer board allows for more than one RTC module (Since these have a hard...

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ICS501 simple frequency multiplier
Miscellaneous

ICS501 simple frequency multiplier

Scott from SWHarden has published a new build: Today I made a high frequency multiplier using a single component: the ICS501 PLL clock multiplier IC. This chip provides 2x, 5x, 8x (and more) clock multiplication using an internal phased-lock loop (PLL). At less than a dollar on eBay,...

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VXO – based PLL frequency synthesizer for 7 MHz
RF

VXO – based PLL frequency synthesizer for 7 MHz

Vasily Ivanenko made a VXO-based synthesizer: To make a VXO to mix with a ~7 MHz VCO, you’ll need a crystal that is higher in frequency than the highest frequency you want to synthesize. Some rummaging revealed a bag of 21.4773 MHz crystals that I could divide by 3 to garner 7.159...

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Designing a mains frequency monitor
Mcu

Designing a mains frequency monitor

Dan Watson writes: This is the second in a series of posts about designing a mains frequency monitor using the Microchip PIC 16F1619 microcontroller. In this post we will take a look at the first revision of the board that I designed for the project and some of the features that it...

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Electricity Frequency Meter
Test/Measurements

Electricity Frequency Meter

This project is about an accurate mains frequency meter that has a bar-graph displaying the relative deviation from nominal frequency. It can work with 50Hz and 60Hz systems. An article by Dieter Laues in the February 2012 issue of Elektor inspired me to get my soldering iron out....

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