Explain the principles and experimental standards of electromagnetic compatibility, explain the principles and selection of commonly used devices, and explain protection circuits
This book is based on the author Li Wenqing's many years of experience in high-speed PCB design. It uses Allegr016.6 as the software platform and practicality as the principle. It explains in detail t
How to modify the Android system of VS-RK3288W and VS-RK3399 to never sleep? Based on Android 7.1 system, the system never sleeps: 1. Never sleeps in the code: \frameworks\base\services\core\java\com\
I want to exchange T-shirts. When can we have an event to exchange gold coins for T-shirts? This suggestion is that we should give more discounts and more favorable prices:pleased:
A low frequency card T5577 and its card reader, as shown belowNow I have two problems
1. When the card is placed against the card reader, the operation direction must be swiped horizontally from right