A check-in camp I attended ended, and the course teacher asked me what I would do to say goodbye to 2019 after 98 days. Only then did I realize that there is not much left in 2019. Time flies so fast....
PCB hole metallization process is one of the processes that produces the most wastewater. The complex copper ion wastewater produced by the traditional PTH process is the most difficult to treat. The ...
A high-precision sensor development board that supports Bluetooth wireless, using the SHT31 temperature and humidity sensor and the nRF51822 Bluetooth moduleThe manufacturer provides hardware producti...
littleshrimpSpecial Edition for Assessment Centres
[size=4][color=#333333][font=-apple-system,]To optimize the code, we must first find the bottleneck of the program, that is, the code that takes up more CPU time, and then optimize it in a targeted ma...
The bass circuit introduced in this article has the characteristics of wide adaptability, strong adjustability, good selectivity, low distortion, and can be set. It is suitable for heavy bass playback...