上次版主給我發了個圖2--------3   我做了條線                  還是不行哦   我用的聯想E46L，串口電腦，用USB轉232也試過，都出現通訊錯誤 0259      這是為什么？高手  求教 謝謝
                                            3--------2
                                            5--------5
                                            4--------6.8
                                           6 -8 --------4
                                  

2-------3
3--------2
5--------5
4--------6.8
6 -8 --------4