This project will cover the design, construction, and testing of an analog filter meeting the ITU-R BS.468-4 specification, which aims to evaluate the disturbing effects of noise on audio broadcast signals.
December 10, 2023 by John Woodgate
A PIR sensor detects objects to allow a Raspberry Pi Pico running MicroPython code to adjust the frequency of a Science Fair electronic oscillator circuit with audio output.
November 26, 2023 by Don Wilcher
In this hands-on project, we will update a 1980s version of a one-shot (monostable multivibrator) circuit by giving it a modern, colorful output while also examining the circuit's operation.
September 17, 2023 by Don Wilcher
This project demonstrates the design and operation of a root-mean-squared (RMS) detector for inclusion in a wideband voltmeter. The RMS detector is useful for measuring certain signal types, including noise, since it provides an indication of the energy in a signal.
June 25, 2023 by John Woodgate
For most, the name "Father Christmas" conjures images of toys and gadgets. But for this gentleman maker, the name brings misery. Be sure to stockpile your Arduino, Raspberry Pi, and Particle Photons; it's time to catch Saint Nick red-handed.
December 21, 2018 by Robin Mitchell