**1. Topic** How to dynamically open the log of the Bluetooth kernel **2. Problem background** Product: Tina product such as scanning pen Hardware: V853 + XR829 Software: Tina linux4.9 The purpose is ...
The circuit diagram of this part is as shown in the figure. The signal generator PULSE generates a +4V square wave signal, and the driver IC1 converts it into a +18V square wave signal and outputs it ...
Part 1: Basic design principles for basic power supply and groundNoise on ground and power linesThe ideal ground resistance is zero, but in reality the ground always has a certain impedance. Especiall...
The basic principles of anti-interference design are: suppress interference sources, cut off interference propagation paths, and improve the anti-interference performance of sensitive devices.
1. Supp...
The ESP32 version has a built-in hardware SD/MMC controller, making the use of SD very simple.uos.mount(machine.SDCard(), '/sd')https://github.com/micropython/micropython/commit/8e3af7d4c80bfd9047431e...