Dear forum elder brothers and sisters, I am recently making a light with photosensitive control + PIR human body induction, powered by three AA batteries connected in series. Recently, I have encounte...
[i=s] This post was last edited by a media student on 2018-9-9 23:37 [/i] [align=center][font="][color=#9932cc][b]【GD32F350 Urban Youth Family Security Guard】The third post: Human body sensing module ...
On February 8, Huawei has taken a series of actions in response to a series of rumors about the change of senior management and the sale of business of Huawei that appeared in WeChat groups and public...
1 Introduction At present, the number of portable devices such as mobile phones, laptops, wireless drills, digital cameras, MP3 players, etc. is increasing day by day, and there are many kinds of them...
The first "World Engineering Day" celebration ceremony will be held at the UNESCO Headquarters in Paris, France on March 4, 2020.
In order to better understand the current status of engineers' work an...
:Sad: Cry some tears and drink some water. The water supply has been cut off three times in the past 10 days. In recent years, there have been droughts. I have gone from being in a rainy area (it rain...