The Design of Laser Rangefinder Based on MCU

With the rapid development of modern electronic technology and the continuous improvement of the performance of optoelectronic devices, laser rangefinder has become the main instrument for distance measurement and is soon applied to various measurement fields. In this paper, a laser rangefinder based on a micro-programmed control unit (MCU) is designed according to the principle of laser pulse range finding. The proposed design uses an MCU based on Corex-M4 core as the processor, uses a range-finding module to obtain the single-point distance signal, and combines with a gyroscope sensor to measure the distance between two points on a plane. After data collected is processed by the MCU, the distance information is displayed on an OLED screen. At the same time, this information can be also transmitted to the upper computer through Bluetooth for storage and subsequent processing. The test results show that the proposed design has the advantages of fast measurement, high accuracy, and reliability, which can meet the needs of range-finding in people's daily work and life.