LCD1602 4位数据线控制方式

LCD1602显示

描述：

LCD1602可以分为8位和4位控制方式，8位控制方式是用D0-D7数据线来传送控制命令及数据。4位控制方式是用D4-D7数据线来传送控制命令及数据。使用4位数据线做控制时，需要分两次来传送，先送出高4位数据，再送出低4位数据。可以节省单片机的4根端口线。

-LCD1602 4-bit data line control LCD1602 display Descr iption: LCD1602 can be divided into 8-bit and 4-bit control, 8-bit control is D0-D7 data lines to send control commands and data. 4-bit control is used D4-D7 data lines to send control commands and data. Using the four data lines as a control, you need to transfer twice, the first high 4 bits of data sent, then send lower 4 bits of data. Can save the four-port MCU line.