Sound to RC Servo Driver v2.0 – Arduino Compatible

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https://www.electronics-lab.com/project/sound-to-rc-servo-driver-v2-0-arduino-compatible/

The project presented here is made for applications such as Animatronics, Puppeteer, sound-responsive toys, and robotics. The Arduino compatible board consists of LM358 OPAMP, ATMEGA328 microcontroller, microphone, and other components. The project moves the RC servo once receives any kind of sound.  The rotation angle depends on the sound level, the higher the sound level […]

Voice Echo Processor Module – Delay Device for Sound Effects, Echo, Reverb 

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https://www.electronics-lab.com/project/voice-echo-processor-module-delay-device-for-sound-effects-echo-reverb/

The voice echo or digital delay sound effects project presented here is suitable for applications such as Karaoke, multimedia, musical instrument effects, electronics toys, animatronics, etc. The project is based on PT2399 chip, with an operating supply of 5V DC, and approx. 30mA current consumption. Two potentiometers are provided to set the delay and repeat. […]