V TELESKY 2PCS LCD1602 Blue Screen with Backlight 1602A-5v Blue Background White Text Display Screen LCD Screen with pin Arrangement

Step 1: VSs is the ground power supply

Pin 2: VDD connected to 5V positive power supply

Step 3: V0 is the contrast adjustment end of the LCD display. When connected to a positive power source, the contrast is the weakest, while when connected to a ground power source, the contrast is the highest. When the contrast is too high, it will produce "ghosting". When in use, the contrast can be adjusted through a 10K potentiometer

Step 4: RS is for register selection, select data register for high level, and select instruction register for low level.

Step 5: R/W is the reading and writing signal line, which is used for reading operations during high battery life and writing operations during low battery life. When RS and RW are both low level, instructions or display addresses can be written. When RS is low level, RW is high level, busy signals can be read. When RS is high level, RW is low level, data can be written

Pin 6: The E end is the enable end. When the E end jumps from a high level to a low level, the LCD module executes the command.

Pins 7-14: D0~D7 are 8-bit bidirectional data cables.

Pin 15: Backlight power positive pole

Pin 16: Negative pole of backlight power supply