Blue LCD 1602


Blue and white
Standard 16X2 LCD character module (backlit / blue)
1602 using a standard 16-pin interface, where:
The first Foot : VSS is ground power
Second Foot : VDD 5V positive power supply connection
Third Foot: V0 end liquid crystal display contrast adjustment, contrast weakest connected to the positive supply, the highest contrast, will have a “ghosting” grounded power when the contrast is too high, you can adjust the contrast through a 10K potentiometer when using
Fourth Foot: RS for register selection, select the data register is high, select the instruction register is low.
Fifth  Foot : R / W signal line is read, the read operation is high, the write operation is low. When the RS and RW common is low can be written instructions or display address, when RS is low RW can be read busy signal is high, when RS is high RW is low, data can be written.
Sixth  Foot: E terminal is enabled client, E Duanyou high jump when it becomes low, the LCD module executes the command.

Seventh to fourteenth feet: D0 ~ D7 to eight bidirectional data line.

Fifteenth  Foot: backlight power positive
Sixteenth Foot: backlight power negative.
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