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This type of robot is operated with the help of mobile phone. Here, the dial tone of mobile phone is decoded by Dial Tone Multi Frequency (DTMF) decoder and signal is sent to microprocessor to actuate the actuators. As this robot is operated by mobile, it is connected to large coverage area of mobile service provider. Due to this reason, it overcomes the disadvantages of traditional wireless robots, such as limited working range and limited control.
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