LCD1602 LCD screen using 8 bit parallel transmission of data, because it requires a lot of pins, so there is the idea of whether the serial data can be transmitted to the 12864. But 1602 does not have a serial mode to the 12864, it has only one parallel mode. At this time it was proposed that the group can use the 74HC595 chip, which is precisely the 8 bit serial input parallel output. Next, we start to discuss the timing diagram of the control, and the sequence diagram of 1602 is very simple. Due to the limitation of conditions, the simulation software is used to simulate the effect.

1602液晶屏串行转并行
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