Blue Yellow

LCD1602/2004 LCD screen adapter board IIC/I2C/interface to send function library compatible for Arduino Product parameters: 1. Supply voltage: +5V 2. Support I2C protocol 3. With backlight, and contrast adjustment potentiometer 4.4 line output is simpler Standard 16X2 LCD character module (backlight) 1602 uses a standard 16-pin interface, of which: 1 pin: VSS is the ground power 2 feet: VDD connects to 5V positive power supply 3 feet: V0 is the contrast adjustment terminal of the liquid crystal display. The contrast is the weakest when connected to the positive power supply, and the contrast is the highest when the power supply is grounded. When the contrast is too high, it will produce “ghosting”. When using, you can adjust the contrast through a 10K potentiometer Pin 4: RS is the register selection, the data register is selected at high level, and the instruction register is selected at low level. Pin 5: R/W is the read and write signal line, read operation at high level, and write operation at low level. When RS and RW are both low level, the command or display address can be written. When RS is low level and RW is high level, the busy signal can be read. When RS is high level and RW is low level, data can be written. Pin 6: The E end is the enable end. When the E end changes from high level to low level, the LCD module executes the command. 7～14 feet: D0～D7 are 8-bit bidirectional data lines. 15 feet: backlight power positive 16 feet: negative pole of backlight power supply 1602 The character generation memory (CGROM) inside the liquid crystal module has stored 160 different dot matrix character patterns, as shown in Table 1, these characters include: Arabic numerals, upper and lower case of English letters, commonly used symbols, and Japanese kana, etc. , Each character has a fixed code. For example, the code for the uppercase English letter “A” is 01000001B (41H). When displaying, the module displays the dot matrix characters in the address 41H, and we can see the letter “A” ” LCD2004 LCD module with backlight 5V Adopt high-quality 2004 LCD screen, white characters on blue background, clear display IIC bus control, only occupy two IO ports The backlight is controllable, it can be controlled by jumper or program Adjustable screen display contrast Dimensions: 98.0mm×60.0mm Connection method: conductive tape Sight size: 76.0mm×26.0mm Interface mode: single row parallel port Point size: 0.55mm×0.55mm Backlight type: EL/LED Character size: 29.5mm×47.5mm Display content: 20 characters × 4 lines Working voltage: +5V Working temperature: -10℃～+60℃ Controller: SPLC780 Storage temperature: -20～+70℃ LCD1604 16*4 LCD display 5V blue screen Dimensions: 86.96*60*13mm Display area: 62.3*27.6mm Number of characters: 16*4 Backlight type: yellow-green light/blue light/white light/red light/emerald green light Drive voltage: 3.3V/5V power supply Working temperature: -20°+70° Storage temperature: -30° +80° Two, interface definition Standard 16X4 LCD character module 1604 uses a standard 16-pin interface, of which: Pin 1: VSS is the ground power The second foot: VDD connects 5V positive power The third pin: V0 is the contrast adjustment terminal of the liquid crystal display. The contrast is the weakest when the positive power is connected, and the contrast is the highest when the power is grounded. When the contrast is too high, it will produce “ghosting”. When using it, you can adjust the contrast through a 10K potentiometer. Pin 4: RS is the register selection, the data register is selected at high level, and the instruction register is selected at low level. Pin 5: R/W is the read and write signal line, read operation at high level, and write operation at low level. When RS and RW are both low level, the command or display address can be written. When RS is low level and RW is high level, the busy signal can be read. When RS is high level and RW is low level, data can be written. Pin 6: Terminal E is the enable terminal. When terminal E changes from high level to low level, the LCD module executes the command. Pins 7 to 14: D0 to D7 are 8-bit bidirectional data lines. 15 feet: backlight power positive Pin 16: Negative power supply of backlight 12864B LCD display blue green screen with backlight 5V Features: LCD12864 is a dot matrix graphic liquid crystal display module with 4-bit/8-bit parallel, 2-wire or 3-wire serial interface modes, and contains the national standard first-level and second-level simplified Chinese character library; its display resolution is 128× 64, Built-in 8192 16*16 dot Chinese characters, and 128 16*8 dot ASCII character set. Utilizing the flexible interface mode and simple and convenient operation instructions of this module, it can form a full Chinese human-computer interactive graphic interface. It can display 8×4 lines of 16×16 dot matrix Chinese characters. Graphic display can also be completed. The LCD12864 interface is defined as follows: The parallel port mode is as follows: Pin 1: VSS is the ground power The second foot: VDD connects 5V positive power The third pin: V0 is the contrast adjustment terminal of the liquid crystal display, the contrast is the weakest when the positive power is connected, and the contrast is the highest when the power is grounded Pin 4: RS is the register selection, the data register is selected at high level, and the instruction register is selected at low level. Pin 5: R/W When R/W and E are both high, the data is read to DB0～DB7; when R/W is low, E changes from high to low, DB0～DB7 The data is written to the IR or DR register Pin 6: E enable signal Pins 7 to 14: DB0 to DB7 are 8-bit bidirectional data lines. Pin 15: PSB parallel/serial selection. When PSB is high, it is parallel mode; when PSB is low, it is serial mode. Pin 16: NC empty pin. Pin 17: /RESET reset pin. Low level has suburbs. Pin 18: VOUT LCD drive voltage output terminal, can not be connected. Pin 19: A positive backlight power supply, connected to +5V. Pin 20: K negative backlight power supply, grounded. The serial port mode is as follows: Pin 1: VSS is the ground power The second foot: VDD connects 5V positive power The third pin: V0 is the contrast adjustment terminal of the liquid crystal display, the contrast is the weakest when the positive power is connected, and the contrast is the highest when the power is grounded Pin 4: CS chip selection signal, active at high level. Pin 5: SID serial data input terminal. Pin 6: CLK serial synchronous clock. Pin 15: PSB parallel/serial selection. When PSB is high, it is parallel mode; when PSB is low, it is serial mode. Pin 17: /RESET reset pin. Low level has suburbs. Pin 19: A positive backlight power supply, connected to +5V. Pin 20: K negative backlight power supply, ground