10.Arduino learning notebook--1602 LCD experiment

10.Arduino learning notebook--1602 LCD experiment Juvtmall ( a company supply PCB Prototyping , PCBA service and sell kinds of components, modules and so on) ( Catduino has the same function of Arduino) In this experiment, using arduino to drive 1602 liquid crystal display directly. 1602 LCD is widely used in the application, the original 1602 LCD using the HD44780 controller, and now all manufacturers of 1602 modules are basically compatible with the IC, so the characteristics are basically the same. 1602LCD main technical parameters: Display capacity is 16 × 2 characters; The working voltage of chip is 4.5 ~ 5.5V; Working current is 2.0mA (5.0V); The best working voltage of the Module is 5.0V; The character size is 2.95 × 4.35 (W × H) mm. 1602 LCD interface pin definition number symbol pin definition number symbol pin ...