Presently, I am working on a project relates to ZigBee wireless technology, developing an ultrasonic sensor system to protect the device from collision by implementing suitable ultrasonic sensors and design a sensor system to explore the surroundings of the device, detect the movement of the device and the distance of the obstacles to the device, give warning signal if there is an obstacle and send a signal to the main controller to prevent the collision from occuring.
Appreciate it if anyone could guide me on this please.