How to build a ringtone with touch sensor?

How to build a ringtone with touch sensor?

Reading time: 2 minute The classic "bell button" (simple return switch) can be and even is replaced, in many mini-automation assemblies, with a resistive sensor (touch). The example described in the article illustrates this "replacement" in the case of a common multivibrator circuit with transistors, used as a bell.

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What are ICE (In Circuit Emulators) and how do they work?

What are ICE (In Circuit Emulators) and how do they work?

Reading time: 5 minute The emulator is a high-performance solution for developing microcontroller applications. If in electronics without microcontrollers the oscilloscope is used, in applications with microcontrollers the circuit emulators are also used. It is the most efficient way to see what is happening inside the microcontroller.

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