LittlevGL is a free and open source graphics library that provides everything you need to create embedded GUIs, with easy-to-use graphical elements, beautiful visual effects and a low memory footprint.
Until now, CMMB USB Dongle can only be used on PC and notebook. Now, through our efforts, CMMB USB Dongle can also be used on WINCE platform to watch wonderful mobile TV programs. We have developed so
Today is the first day of the Chinese New Year, I wish you all a happy new year! ! Happy New Year to all netizens! [size=16px]I wish you all:[/size] [size=16px]a rising fortune,[/size] [size=16px]full
[i=s] This post was last edited by Qinheng USB MCU on 2018-4-2 17:32 [/i] 1. The CH554 series supports USB and serial port download programs. 2. When using USB download, you must pull UD+ high before
In the book on digital electronics, it is said that when using transistors as switches, as long as Ib>Ibs (saturated base current), the transistor can work in the deep saturation region. So how should
Does anyone have the source code of "A novel intelligent water level controller with perfect functions" from Radio Magazine, Issue 2, 2008? I downloaded an article from CNKI. The program I wrote did n
In the figure below, why does this negative voltage output circuit not work?
Vin=24V, the design requires output -12V,the problem now is that after power on, it can output -12V occasionally, but somet