A standard electret microphone can detect sub-audio "sounds" when some simple equalization circuitry is added.

The simple schematic is in Figure 4; the concept also worked well in LTspice, using their default “NJF” JFET, and formed part of Figure 2’s simulation. Figure 4 A circuit that simulates an electret ...

Understanding how these components work together is key to understanding electronics. Circuit diagrams use symbols to represent each component, such as resistors, capacitors, transistors ...

The schematic design and preliminary budget for the Reimagine Miller project were approved by the Marshalltown Community School District Board of Education during the regular Monday meeting ...

Have you ever wanted to add some cool lighting effects to your electronic circuits or spice up your home decor with a… ...

Have you ever wanted to build your own IoT-based Weather Monitoring Station? Imagine monitoring real-time temperature, humidity levels,… ...