Lcd 1602 (16x2) LCD Display With I2C/IIC Interface - Blue Backlight

Blue and whiteStandard 16X2 LCD character module (backlit / blue)1602 using a standard 16-pin interface, where:The first Foot : VSS is ground powerSecond Foot : VDD 5V positive power supply connectionThird 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 usingFourth 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.