DA转化模块0809是8位8通道逐次逼近式A/D转换器，CMOS工艺，可实现8路模拟信号的分时采集，片内有8路模拟选通开关，以及相应的通道地址锁存用译码电路，其转换时间为100us左右。

OCM12864 液晶显示模块是128×64 点阵型液晶显示模块，可显示各种字符及图形，可与CPU 直接接口，具有8 位标准数据总线、6 条控制线及电源线，采用KS0108 控制IC

-DA conversion module 0809 is an 8-bit 8-channel successive approximation type A/D converter, CMOS technology, can realize 8-channel analog signal acquisition time-sharing, on-chip 8-channel analog strobe switches, and the corresponding channel address latch with the decoding circuit, the conversion time is around 100us. OCM12864 liquid crystal display module is 128 × 64 points, formation liquid crystal display module can display a variety of characters and graphics can be a direct interface with the CPU, with 8-bit standard data bus, six control lines and power lines, with KS0108 Control IC