: Thermostat interfaces or security system keypads.
: They provide a "retro-tech" look that is highly sought after in the mechanical keyboard and synth-building communities. Typical Applications M_N_I_E_2x16
: Frequently indicates No Backlight or a specific Negative image mode (light text on a dark background). : Thermostat interfaces or security system keypads
: They generally use a 4-bit or 8-bit parallel interface, though many modern versions use an I2C backpack to reduce the required wiring to just two data pins. M_N_I_E_2x16