Shape size: 86.96*60*13mm

Display area: 62.3*27.6mm

Character number: 16*4

Glass type: yellow green film / blue film / gray film / black film

Backlight types: yellow green light / Blue / White / red / Emerald light

Drive voltage: 3.3V/5V power supply

Working temperature: -20 degree to +70 degree

Storage temperature: -30 degree to +80 degree

Interface definition

Standard 16X4 LCD character module

1604 the standard 16 foot interface, which:

First feet: VSS for ground power

Second feet: VDD 5V positive power supply

Third feet: V0 is the contrast adjustment terminal of LCD, when the positive power supply is the weakest, the contrast is the highest when the grounding power is the highest. When the contrast is too high, it will generate ghosting. When using it, we can adjust the contrast through a 10K potentiometer.

Fourth feet: RS is a register selection, the high power usually selects the data register, the low normal selection instruction register.

Fifth feet: R/W is read and write signal line, high power normally read operation, low electricity usually write operation. When RS and RW work together for low power, they can write instructions or display addresses. When RS is low level, RW can read busy signals at high power. When RS is high level, RW can write data for low power.

Sixth feet: the E end makes the end, when the E end from high level jump into low power, the LCD module executes the command.

Seventh to 14 feet: D0 ~ D7 were 8 bi-directional data lines.

Fifteenth feet: backlight power cathode

Sixteenth feet: backlight power supply negative pole