This Ultrasonic Sensor ... circuit works from 9-12 VDC and can be used with batteries or a power supply. Connect the power supply across points 1 (+) and 2 (-) of the p.c. board and put P1 at roughly ...

This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module ... If everything goes right,you should see the burning eye of the red LED when there is no ...

Enclosed are the ultrasonic sensor, a temperature sensor and an LED indicating the power status. On the other side of the CAT5 cable can be found an Arduino compatible board with an XBee shield ...

In addition, you also get a matching motor controller board, a rechargeable battery and its charging circuit ... text to speech, ultrasonic sensor visualization, LED lighting control, message ...