I found a few articles about POE power supply on the Internet, but I was confused after reading them. I have a few questions to ask the experts
The standard mentions that the POE management device PSE
LiChuang Mall, China's largest electronic component retail mall (engineering sample specialty store), has taken another major step to launch a large number of free and open source blank development bo
Provide a section of AD sampling FPGA programThe program is as followsVerilog source program is as follows://---------------------------------------------------------------------------
//-- File name:
[b]1. Experimental Task[/b] Use the MCU AT89S51 and ADC0809 to design a digital voltmeter that can measure the DC voltage value between 0-5V and display the four-digit digital display, but the number
I used ucgui to create a drop-down list and list box on a dialog box. When using the touch screen function of ucgui, clicking on the drop-down list can get the focus and expand the drop-down list box,