| Back in 2011, Elektor presented a DIY 50-m range directive sound beam using an array of piezo ultrasonic transducers (up to 200) driven with...
All items tagged with PWM and ultrasonic (4)
| The Arduino and Raspberry Pi have revolutionized the field of embedded systems design. One area of widespread applicability for both devices...
| This low-cost signal generator has an impressive frequency range from 250 Hz to 60 MHz. It can generate PWM signals from 250 Hz to 60 kHz, w...
| Looking for an audio project? This article explores the design of a DIY 50-m range directive sound beam using an array of piezo ultrasonic t...