The Data Pins are connection to the Digital I/O pins of the microcontroller to send 8-bit data. So if we want to send data via the data pins 0 to 7, we have to make sure that the enable pin is high.ĭata pins 0 to 7 forms an 8-bit data line. Normally grounded to write data to LCDĬonnected to microcontroller pin and toggled between 1 and 0 for data acknowledgement. Select command register to low when we are sending commands to the LCD like set the cursor to a specific location, clear the display or turn off the display.Īnd select data register when RS is set to high to send data or characters to the LCD.ĭiffer between read or write data.
We will connect the VEE pin to the potentiometer output to adjust the contrast by changing the resistance of the potentiometer. Also for a test 3V does the job.Īdjusts the contrast of the display If this pin is grounded, you get the maximum contrast. Ground pin to connected to the GND pin of the Arduino.
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