This is a basic 16 character by 2 line display. Black text on Green background.
This is based on the most common Hitachi's HD44780 parallel interface chipset. The HD44780U dot-matrix liquid crystal display controller and driver LSI displays alpha numeric, Japanese kana characters, and symbols. It can be configured to drive a dot-matrix liquid crystal display under the control of a 4- or 8-bit microprocessor. Since all the functions such as display RAM, character generator, and liquid crystal driver, required for driving a dot-matrix liquid crystal display are internally provided on one chip, a minimal system can be interfaced with this controller/driver. This LCD display can be easily interfaced to a microcontroller in either 8 bit mode or 4 bit mode depending on the number of microcontroller pins you have to spare. The LCD only displays a text output however this is a user interface for display information about battery power or distance to an object.
A single HD44780U can display up to one 8-character line or two 8-character lines. The HD44780U has pin function compatibility with the HD44780S which allows the user to easily replace an LCD-II with an HD44780U. The HD44780U character generator ROM is extended to generate 208 5 × 8 dot character fonts and 32 5 × 10 dot character fonts for a total of 240 different character fonts.
The nominal operating voltage for LED backlights is 5V at full brightness, with dimming at lower voltages dependent on the details such as LED color. Non-LED backlights often require higher voltages.