This article explains how to use the human body sensing module HC SR505. We use an LED to indicate whether a person has walked into the sensor. When a person walks in, the LED indicator lights up, and
Preface: VScode is already available on the computer, and ESP32 development is perfectly supported on VScode. Next, use VScode to install the esp32 development environment.VSCode official website addr
Several states of microcontroller IO port output1. What are the differences between the open-drain output and open-drain multiplexed output of a microcontroller?2. What are the differences between the
As shown in the figure below, when I import the BOM, there are obviously many components with different values. Why are they not distinguished? If I want to separate them, how should I do it? Please h