Embedded LCD System used for HAL Hardware abstraction layers (HALs) simplify LCD module integration across MCU platforms with better portability and faster development time. Custom display layers deliver higher performance for single-platform projects needing specific hardware features. Choose HALs for
The COB and COG LCD difference comes from where the control chip, or driver IC, is placed in the display structure.
LCDs use AC voltage to prevent permanent polarization and protect liquid crystal molecules from degradation.
Some LCD modules need a negative voltage on the VEE pin to set the liquid crystal cell at a mid bias.
Correct wiring connects the microcontroller’s TX pin to the LCD’s RX pin, RX to TX, and a shared ground to enable serial communication.
Baud rate controls how fast data reaches monochrome LCDs. Higher baud rates speed up display updates but risk transmission errors.
Built-in LCD controllers sit on the display module or main board with dedicated VRAM and optimized firmware.
The rise and fall times on the enable pin decide if the LCD1602 can read data without mistakes.
A timing controller, or TCON, makes sure each pixel in an LCD gets the right signal at the right time.
SPI uses four wires—MOSI, MISO, SCK, and SS—needing more pins. I2C needs only two wires, SDA and SCL, saving space.
Over the years, rich experience in LCD module generation has led us to accumulate 10,000+ standard LCD modules in our standard library, download our catalog to select the LCD module that best suits your needs!
