I need to implement a solution: AT89C2051 circuit has been set up, now the software 3, 6, 7, 8 pins selective level input, when 3 pin input 2 low level 2 pin output drive 8050 three-pole tube, when 6
[i=s]This post was last edited by dontium on 2015-1-23 13:31[/i] The input from S1 is a sine wave, why does the output from S2 look a bit like a square wave? Thanks.
[align=left][align=left] [font=宋体][size=12pt]Parts package refers to the appearance and location of solder joints indicated when the actual parts are soldered to the circuit board. It is a pure spatia
Multilayer printed circuit boards are designed for better electromagnetic compatibility. This allows the printed circuit boards to meet electromagnetic compatibility and sensitivity standards when ope
The picture below is the original part drawn in my package library. I want to determine its coordinates as a whole. Every time I select it and enter the coordinates, I can only move one of the pads. P