Unformatted text preview: the cell phone signals given to level converter in which the signal are converted into 0 and 5v pulse then these signals given to micro controller. When the SMS is sent, the microcontroller activates the driver circuit as per mentioned in the program. The driver circuit is constructed with transistor which acts as switch to control the relay. The relay output is directly connected to motor which is attached in the robot. For an example when arm down SMS is sent, the signal is given to microcontroller. So the microcontroller activates the corresponding relay thorough the driver circuit. Now the arm moves to down side. Through this way arm is controlled for pick and place application....
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- Spring '11
- English-language films, Cellular network, cell phone, Push-button telephone, driver circuit