Glass size
69.5 * 21.8 * 17.8
Standard 16X2 character LCD modules (backlight / blue)
1602 using a standard 16-pin interface, including:
1st leg: VSS for ground power
2 feet: VDD connected to 5V positive supply
3 feet: V0 for LCD display contrast adjustment terminal, connected to the positive power of the weakest contrast, the highest contrast, will have a "ghosting" grounded power when the contrast is too high, you can adjust the contrast by a 10K potentiometer when using
4 feet: RS for the register selection, select the data register is high, select the instruction register is low.
5 feet: R / W for read and write signal line, a read operation is high, the write operation is low. When the RS and RW common is low can be written instruction or display address, when RS is high for the low RW can be read busy signal, when RS is high RW can write data is low.
6 feet: E end for enabling end, when E Duanyou high jump into a low, the LCD module execute the command.
7 to 14 feet: D0 ~ D7 for eight bidirectional data line.
15 feet: Backlight positive power supply
16 feet: Backlight power negative
1602 LCD module inside the character generating memory (CGROM) already stored 160 different graphic dot matrix characters, as shown in Table 1, these characters are: Arabic numerals, the case of the English alphabet, commonly used symbols, and Japanese Kana, etc. Each character has a fixed code, such as capital letter "A" code is 01000001B (41H), the display module address 41H in the dot character pattern is displayed, we can see the letter "A .
