2025/08/24

https://github.com/issues/created?issue=micropython%7Cmicropython%7C17828解決辦法就係加呢兩句係main.py頭import pybpyb.usb_mode('VCP+HID') 2025/08/05

2025/08/02

Unlike nucleo to user serial port via usb by just enabling the uart. We have to enable VCP in weact H750 board. Reference: https://blog.csdn.net/Naisu_kun/article/details/118192032 2025/08/01

2025/07/30

Few things need to be care and different then STM32F411CEU6 Gitlab source https://wiki.st.com/stm32mcu/wiki/Getting_started_with_DMA 2025/07/23

I changed the clock to maximum 480Mhz, after I F5 for the first time, I unable to burn any program to it again. To solve this, press both reset and boot buttons on the board, click F5 in STM32CubeIDE, then release reset button (still hold the bott button). It will successfully burn the program again. […] 2025/07/23

Special Thanks to Mr kdschlosser for writing the driver More Examples on https://github.com/quantrpeter/Waveshare-ESP32-C6-1.47-Touch-Micropython-LVGL Example: 2025/07/06

https://www.waveshare.com/wiki/ESP32-C6-Zero 2025/07/03

https://item.taobao.com/item.htm?_u=vbuhab0c8fc&id=692235616325&pisk=gfaLsUj6M1dLBGaKsWSMEFEN3lfGiGVU_JPXrYDHVReTeSd3x0DoV4e4H0TlY2m-yRMg-vVnRbi7E-ZndkDkyzeapeYoR8b-FSrNavc3-Qh7fJLuxWD3XQ3USkYoK9u8N-0RntbcoWPE846cnxid94gjO3OBEYg614c8jWtHGWPEzYOMFiq_TQhdgwAINY1t5bhIO4MINF1twb9IPviWChGjC4gSA0t_1jcXApMWA1KstbcWRXGS5hGSZHgSP8N16bksO4gS9i5KQBGpyo2QH1YJL2LWPPhKfiViCiyQJXhnnWapBddr9DHbOAB4G69Z2JnLSwpq9lNYiXePueuI2kwK14QJ72VYfJnTvTLtblN4PcENHnP4OowSKP6XyYq4JomqAILY68UtRAUPaUkQx7ao2y6XZvaUKPn4zpBiEoVgRcefIFer2kwK1qsPZr4xT7vmHbxC61Ky4DGw7oIF1mRpfIltn6iB43oo_fHc6tty4DGZ6xfB_3-rqf5..&spm=a1z09.2.0.0.20712e8dhZRCRN (Set to 115200, otherwise upload will fail) 2025/05/31

This is the tutorial to compile micropython with LVGL and burn it into the board Steps: If success, you should see this Open thonny and run Then you will see Links you should read https://www.waveshare.com/wiki/ESP32-C6-LCD-1.47 https://github.com/lvgl-micropython/lvgl_micropython Remark: This program is a little bit crazy, first time you run it will success, but if you run […] 2025/04/14

https://item.taobao.com/item.htm?_u=ibuhab0bb1b&id=628418040642&spm=a1z09.2.0.0.76e02e8dYbXP6k 2024/12/18

https://gitlab.com/peter-example/stm32/thei-stm32-demo-stm32f411ceu6 2024/12/18

2024/11/18

The technique they have used are "trait", "magic function" and "call_user_func_array". The whole thing work in runtime, not compile time. 1. Php trait PHP trait is just like copy and paste the code from trait into the injected class. 2. Magic function When calling a not exist function, the __call function will be called. Laravel […] 2024/11/17

This book is totally outdated because the official facebook PHP SDK is already deprecated. Now we should go for facebook javascript SDK 2024/10/31

如果想知道容器嘅原理，我圈起左 2024/07/01

This code run a standalone ApacheDS server, you can use ApacheDS studio to connect to it, it host localhost:10389 pom.xml Then you can connect it by ApacheDS Studio 2024/06/09

Set to a better font size 4. Set the color 2024/04/27

2024/04/07

2024/02/14

Using latest SPFx with node v18, pack and deploy the app no error, but web parts not appear, because you missed this. When you upgrade your SharePoint project, beware of this 2024/01/12

use this code pom.xml 2024/01/05

To make the plugin works, need to call wp_footer() in footer.php 2023/12/04

2023/10/25

Teaching teens for electronics is a rewarding and fulfilling experience. Electronics is a fascinating field that combines creativity, logic, and problem-solving. By teaching teens for electronics, you can help them discover the joy of learning new skills, creating useful devices, and exploring the world of technology. You can also inspire them to pursue their passions, […] 2023/08/17

多謝hkcota同oshk安排, 今次台灣可以係coscup 2023講個talk實在開心. 2023/08/07

Create a new list in SPO via PNPjs will get 403 access denied, run this script to solve it 2023/03/20

Two maven project, project A load the project B jar, create the object dynamically and invoke the method Project A: Project A: Project B: 2023/03/17

To redesign our first app engine, we reference WordPress. This is its loading sequence https://medium.com/@dendeffe/wordpress-loading-sequence-a-guided-tour-e077c7dbd119 2022/09/10

just add "?env=WebViewList" at the end of URL 2022/08/25

https://item.taobao.com/item.htm?spm=a1z09.2.0.0.15412e8duBDI2J&id=645704746945&_u=mbuhab0da05 2022/08/22

2022/08/21

https://item.taobao.com/item.htm?spm=a1z09.2.0.0.67002e8ddznHy0&id=630403001847&_u=gbuhab04cbb STM32F103C8T6 2022/08/16

refer to https://blog.csdn.net/wanxiaoderen/article/details/106544773 2022/07/02

Navigate to the registry key 2.HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\HTTP\Parameters. Add 2 new REG_DWORD values, EnableHttp2Tls and EnableHttp2Cleartext, to this registry key. Set both values to 0. Reboot the server  refer to https://stackoverflow.com/questions/67747270/reactjs-neterr-http2-protocol-error-200-with-netcore-in-https/67767129#67767129 2022/06/29

Solved by these commands 2022/06/17

2022/05/09

The first and third method converted successfully with sign. The second one fail. The reason 3rd way working is : It convert to biginteger and convert to long (then we have sign),then convert back to biginteger (also with sign) 2022/05/08

2022/05/01