Software implementation of a wireless ultrasonic ranging system

Based on 2.4 GHz radio frequency communication technology and ultrasonic distance measure technology, a wireless ranging system is designed and implemented. The system is effective in the range of 2cm to 440cm, the measurement error is less than 3cm with temperature compensation. By point-to-point wireless communication technology, the measured data can be displayed on another micro-controller which can be 90m far away from the ultrasonic measurement system, avoiding the inconvenience of reading the measured data directly.