1. Introduction to Frequency Counters A frequency counter is an electronic instrument used to measure the frequency of periodic signals. In the STM32 microcontroller, we can utilize the input capture feature to achieve frequency measurement. The basic principle is to calculate the frequency by capturing the time interval between two consecutive rising (or falling) edges. … Read more
“STM32F4xx timers are categorized into three types: advanced, general-purpose, and basic, featuring rich functionalities including timing, counting, and PWM. Advanced timers include motor control features, general-purpose timers support various capture and compare functions, while basic timers are used for simple timing. This article introduces their configuration and applications to help master development.” 01 — Introduction … Read more
Click the blue text above to follow us Embedded Training – Choose Jufeng Smart Link Introduction to Ultrasonics What is ultrasonic? Ultrasonic waves are sound waves with frequencies higher than the audible range of the human ear (approximately above 20 kHz). In this chapter, we will introduce the HC-SR04, a common ultrasonic sensor module used … Read more