Sound activation also knows as tone detector is one of sensing system that usually used for robot start up activation. When some frequency have received by microphone in this circuit, then the robot will start to move.
I’ve collected some schematic diagrams of sound activation as follow:
Sound Activation schematic 1
Sound Activation schematic 2
Tags: rangkaian sound activation, sound activation, sound detector circuit diagram, sound sensor circuit, sound sensor circuit diagram
Original post, visit this site: elm-chan.org
Before read the rest article/tutorial, please watch the video first.. 
. See the robot’s movement and i’t speed. This is very great…!
You may see the video here.
This line follower robot is very small and simple. This robot is running fast and follow the line very smoothly.
Mechanics
Tags: analog line follower, line follower, line follower tutorial, line tracker, smal line follower
Build a robot is not difficult as you think… With no experience in electronics, you can make a robot easily in 2 hours
Ho it can be..?
Another Line Follower Robot without microcontroller project. This project built using IC timer 555 to generated PWM signal to make the motor running smoothly. This Line Follower Robot tutorial written by Jaseung Ku – 17 Dec 2005. May be this is “not professional” robot, but i think it so cool to create a robot simple things around your place.
Tags: line follower, line follower robot circuit without microcontroller, line follower robot without microcontroller, line follower without microcontroller, Line following robot without microcontroller, mini line follower robot, mini line follower without microcontroller, robot, robotics, tutorial
Build your own line follower / line tracker robot…!
Microcontroller : Atmel ATMega8535
Sensor: 6 photodioda sensor
Motor driver : L298 dual driver (up to 1A of electric current)
Tags: ATMega8535, atmega8535 tutorial, line follower, line follower robot, line follower robot tutorial, line follower tutorial, robot tutorial
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