The first sensor a robot usually gets fitted with is an obstacle detector. It may take three different forms, depending on the type of obstacle you want to detect and also — indeed, above all — on the distance at Continue reading
This is a Electrostatic transducer for ultrasonic measurement circuit. This circuit uses the LM1812 ultrasonic transceiver. Transducer x1 and LM1812 will transmit a burst of oscillations. Then the return echo is listened by using X1. The LM1812 detector will generate Continue reading
This is alternate wireless switching using ultrasonic sensor. The distance of switching range should be more than 10 meters. Please visit this page for more explanation.