STM32 Microcontroller Tutorial 4: Generate PWM Signals with Desired Frequency and Duty Cycle

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In this STM32 microcontroller tutorial, we explain how to generate Pulse Width Modulation signals or briefly PWM signals by using STM32 microcontrollers. PWM signals are very important in mechatronics, robotics, and control applications, mainly because they are used as control signals for serve and DC motors. In this tutorial, we explain how to change a frequency and a duty cycle of PWM signals. That is, we explain how to properly choose the STM32 clock, period, and prescaler parameters, such that the PWM signals with desired signals are generated. In the next tutorial, we explain how to control motors by using PWM signals.

If you want to learn how to control DC motors, servos, and electronic speed controllers used in robotics, mechatronics, drone, and UAV systems, then you first need to learn how to generate Pulse Width Modulation (PWM) signals with different frequencies and duty cycles. Here is a tutorial on how to properly generate PWM signals with desired frequencies and duty cycles by using STM32 microcontrollers.