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The Fnirsi S1 Multimeter: Smart With Large Display (review)

The Fnirsi S1 Multimeter: Smart With Large Display (review)

The Fnirsi S1 multimeter features a large color display and is also smart, meaning that it detects whether a DC voltage, an AC voltage or a...

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Crafting a Custom 8x8 LED Matrix with Arduino and MAX7219

Crafting a Custom 8x8 LED Matrix with Arduino and MAX7219

by DIY GUY Chris

| Dive into the world of microcontrollers and LEDs as we guide you through the creation of a mesmerizing 8x8 LED matrix, powered by Arduino an...

Square Wave Generators with Duty Cycle and Frequency Controls

Square Wave Generators with Duty Cycle and Frequency Controls

by Michael A. Shustov

| This article shows simple circuits of square wave generators with independent control of duty cycle and frequency. The duty cycle can be ind...

Electronic Scarecrow

Electronic Scarecrow

by Burkhard Kainka

| Looking for a friendly way to scare away annoying birds? Here's a simple do-it-yourself electronic solution.

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