As the circuit has no critical adjustment points it is immediately ready for real-world applications. The acoustic sensor in the circuit is a standard omni-directional foil electret microphone (MIC).

Chibitronics combines familiar adhesive stickers with bits of LEDs, sensor circuits, and even a programmable microcontroller, to create a playful set that educates while adding some flash to one ...

A BBC micro:bit program and a sound sensor will get the party started. ... The micro:bit board we have been using as the brain of our circuit needs only 3V. As we saw for LEDs, ...

Figure 5: Amplifier noise contributes greatly to the output noise of a signal-conditioning circuit (Click on image to enlarge) By knowing the sensor, the designer should be able to determine the ...