Loonlog | 菜鸟之志

Original link: http://loonlog.com/2023/9/15/altium-designer-query-write/ When I usually use AD (Altium Designer) to design PCB, I often involve some settings such as line width, line spacing, via size, etc. I always use a basic rule setting. Sometimes the spacing setting is larger than the chip pins. spacing will make it impossible to route traces. At this time, […]

Original link: http://loonlog.com/2023/8/7/ying-huang-yin-yue-pao-lu/ At the end of July, my son, who had been taking piano classes for nearly a year, was notified that the current Hangzhou City 501 Campus will be closed, and that satellite classes will be held nearby in the future. The teachers of both the class and the small class are not

Original link: http://loonlog.com/2023/7/14/world-voltage-and-power-cord-plug-standards/ 1. Overview of voltage specifications in various countries At present, there are generally two types of voltages used in indoor electricity in various countries in the world, namely 100V-130V and 220-240V. 100V, 110-130V are classified as low-voltage, such as the voltage on board in the United States, Japan, etc. The reason for

Original link: http://loonlog.com/2023/7/5/throw-rtatio-and-projection-screen-size/ Throw ratio: The throw ratio is the ratio of the projection distance to the screen width. That is: throw ratio = projection distance / screen width Under the premise of the same position, the smaller the ratio, the larger the projection screen. This is an important parameter that must be considered when

Original link: http://loonlog.com/2022/11/10/ad-invalidparameter-exception-occurred-in-copy/ The newly installed Altium Designer, when copying the schematic diagram, prompts the error InvalidParameter Exception Occurred In Copy, I thought it was the reason for piracy, and later found the method, as follows: Find the menu Tools, find Schematic Preferences… under the drop-down menu, Click Schematic Preferences to open the Schematic Preferences

Original link: http://loonlog.com/2022/8/25/nextcloud-big-file-about-error/ This article mainly solves several error reporting problems when using NextCloud to transfer large files. I have been using NextCloud for more than two years. My DIY xxnas was introduced in the previous article. I mainly use docker to run NextCloud on the OMV system. So far, the main dissatisfaction is that

Original link: http://loonlog.com/2022/7/27/nas-dns-qiao-he/ Yesterday, a dialog box popped up on my nextcloud client to confirm the certificate. I just clicked it without reading it. After that, the nextcloud client could not connect to the server. Then I logged in through the web page. After entering, I found that the login page changed greatly. (as shown