无线蓝牙称重系统设计

蜂鸣器接线未改 P10 LED未改 P11 1602 原先接线 #define LCD1602_PORT P0 RS P25 RW P26 EN P27 现改为 #define LCD1602_PORT P0 sbit LCD1602_RS = P1^2; sbit LCD1602_RW = P1^3; sbit LCD1602_EN = P1^4; 矩阵键盘原先接线 sbit ROW1=P3^0; sbit ROW2=P3^1; sbit ROW3=P3^2; sbit ROW4=P3^3; sbit COL1=P3^4; sbit COL2=P3^5; sbit COL3=P3^6; sbit COL4=P3^7; 现改为： sbit ROW1=P2^0; sbit ROW2=P2^1; sbit ROW3=P2^2; sbit ROW4=P2^3; sbit COL1=P2^4; sbit COL2=P2^5; sbit COL3=P2^6; sbit COL4=P2^7;