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Sound Sensor To Start KRCI Robot

Wednesday, January 27th, 2021 - Electronic Hobby

Sound sensor for KRCI robot starter for this is actually the microphone pre-amp IC LM358. Microphone is used as a sound sensor in the form of electret microphone. Function mic pre-amp circuit as a sensor of this vote to accept the applause sound as a signal to start the robot in KRCI. Sound sensor circuit can work well on the DC voltage from 4.5 to 12 Volt.Ide use electret microphone pre-amp as the sound sensor is because the needs of voice used to start the robot is a pat, start to get sufficient signal to a robot in the form electrical signal.

The Circuit Of Sound Sensor To Start KRCI Robot

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Components List of Sensors Robot Voice To Start KRCI

  • R1, R3, R4: 10K
  • R2: 1K
  • R5: VR220K
  • C1: 0.1uF
  • C2: 4.7uF/16V
  • IC1: LM358
  • Mic: Electret Microphone

VR1 on sound sensor circuit serves to control the gain or sensitivity of the microphone sound reception. Output circuit with sound sensor mic pre-amp is then connected to an analog port on the AVR is used as the processor on the KRCI robot.

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