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The LCD has always been a device that acts as a window in human computer interaction. For example, the prompt window on some instrument devices, the temperature and humidity prompt box, the device running status monitor, and the prompt screen of the counting device all have LCD figures.
The common LCD2004 is fabricated using liquid crystal materials and communicated using the I2C bus.
2004A character liquid crystal display module is specially used to display letters, numbers, symbols and other dot formation liquid display module, can display 4 lines, each line 20 characters.
It is a high-performance serial bus with bus rules and high-speed or low speed device synchronization required for multi master systems. The I2C bus has only two bidirectional signal lines, a serial data line (SDA) and a serial clock line (SCL).
Supports 4 bit and 8 bit data transmission. Provide 5 x 7 dot array + cursor display mode. It provides display data buffer DDRAM, character generator CGROM and character generator CGRAM, which can be used to store the font data of up to 8 5 x 8 lattice graphic characters defined by yourself.

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Parameter Information:
Operating Voltage: 5V
Working Current: 1.4mA
Operating Temperature: -20 - +70 Degrees Celsius
Storage Temperature: -30 - +80 Degrees Celsius
Features:
- Excellent material, stable operation, long service life.
- The screen is clear and the display effect is good.
- Supports 4 bit and 8 bit data transmission. Provide 5 x 7 dot array + cursor display mode. It provides display data buffer DDRAM, character generator CGROM and character generator CGRAM, which can be used to store the font data of up to 8 5 x 8 lattice graphic characters defined by yourself.
- Provides a wealth of instruction Settings: clear display, cursor back to the starting point, display on / off, cursor on / off, display character flash, cursor shift, display shift, etc.
- General standard interface with 4 bit or 8 bit MPU (directly connected M-6800 series MPU).
Display Characters: 20 Characters x 4 Lines
Place of Application:
- Compatible with all devices with I2C interfaces.
- support Arduino Raspberry Pi Beagle Bone Black, tinker board, stm32, esp32 and more.
Package Include:
1 x LCD2004A LCD Module

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