More about circuit (744)

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| If you’re short of inputs on your amplifier, but it has an input for a magnetic pickup with RIAA correction, this very simple project will l...

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| The compact circuit presented here is perfect for receiving the signals from pulsed fixed-frequency transmitters. Chest straps from several...

| Learn how to detect AC current safely without making a direct electrical connection to the mains using an ingenious transformer-based sensin...

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| This circuit lets you control a pump, to keep the level of water in a cellar below a certain threshold, for example. Power is supplied to th...

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| This development board around a 68HCS08DZ60 microcontroller from Freescale aims initially to be a platform for experimenting with the CAN bu...

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| This mousetrap is built around a PIC12F683 and uses an infrared transmissive optical sensor that is modulated at a frequency of 38 kHz, so t...

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| The author repeatedly needed several different digital signals for testing his circuits, and a simple function generator did not provide a s...

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| The thermometer shown here is “micro” not only because it is built around the ATtiny13 microcontroller, but also because it can be built as...

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| The object of this circuit is turn the domestic lighting on and off in complete safety in a room with very high humidity. A detector, flush-...

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| The author set to work equipping a model car with realistic indicators, headlights, tail lights and brake lights. The basic idea was to tap...