The 1602A LCD is a popular 16x2 character LCD module that displays 32 ASCII characters in two rows. It typically interfaces with Arduino and other microcontrollers.
Pinout:
GND: Ground pin.
VCC: Voltage-controlled supply (usually linked to 5 volts).
Vo (LCD Contrast): Modifies the contrast by employing a potentiometer and a voltage divider network.
Register Select (RS): Distinguishes data (HIGH) from commands (LOW).
R/W (Read/Write): For write mode, this is usually maintained low (an output device is an LCD).
E (Enable): Turns on the display (incoming data is processed by HGH).
Data Bus D0-D7: Transports 8-bit information for character display.