clock frequency Articles

ESP32 Beeper Operation

2025-10-31 by boardor

The GPIO port connects to the BEEP pin of terminal J2, allowing the buzzer to sound by inputting a high level on the GPIO port. Frequency: Pitch, kHz Duty Cycle: Sound intensity, 0~100% The duty cycle is the ratio of the time the high level is on to the signal period: Duty Cycle = (Time … Read more

Key Considerations for Low Power Design in MCUs

2025-09-15 by boardor

With the rise of portable mobile devices and various wearable technologies, we must pay attention to the power consumption issues of these devices, as they all share a common characteristic: they are powered by battery systems. A single circuit board may contain many unit circuits related to power consumption. Today, we will discuss the low … Read more