Description
The project presented here is made for applications such as Animatronics, Puppeteer, sound-responsive toys, and robotics. The board is Arduino compatible and consists of LM358 OPAMP, ATMEGA328 microcontroller, microphone, and other components. The project moves the RC servo once it receives any sound. The rotation angle depends on the sound level, the higher the sound level the bigger the movement, in other words, the movement of the servo is proportional to the sound level. The microphone picks up the soundwave and converts it to an electrical signal, this signal is amplified by LM358 op-amp-based dual-stage amplifier, D1 helps to rectify the sinewave into DC, and C8 works as a filter capacitor that smooths the DC voltage. ATmega328 microcontroller converts this DC voltage into a suitable RC PWM signal.
Features
- Supply 5V to 6V DC (Battery Power Advisable)
- RC Servo Movement 180 Degrees with Loud sound
- Direct Sound Input Facility Using 3.5MM RC Jack
- On Board Jumper Selection for Micro-Phone Audio or External Audio Signal
- On Board Trimmer Potentiometer to Adjust the Signal Sensitivity
- Flexible Operation, Parameters Can be Changed using Arduino Code
- PCB Dimensions 44.45 x 36.20 mm
more information: https://www.electronics-lab.com/project/sound-to-rc-servo-driver-v2-0-arduino-compatible/
