说明：  adc0804制作的温度控制器, 设一个加热器p2.0一个制冷器p2.7 设定下限温度30度(设4bh)存31h上限温度60度(设96h)存30h 调整ad电位器可观察到p2.0,p1.4继电器端口的动作范围
(93C46 way to read and write 8-channel Marquee LED display* * 0x00 starting from the address to write data " 1-8" and then read out to send digital tube display.* * Hardware connections: digital control data access P0, the digital control access P2, 93C46 then P3.4- P3.7* * boot, digital tube display 0-7, mobile display, in order to prove the role of 93C46 to out 93C46 connection, it shows that 8* * Note: In the erase or write data, you must first write EWEN instruction for 8-bit mode)