![]() ![]() (Enable(E)): This pin should be held high to execute Read/Write process, and it is connect to the microcontroller unit & constantly held high. Read/Write(RW)): This pin toggles the display among the read or writes operation, and it is connect to a microcontroller unit pin to get either 0 or 1 (0 = Write Operation, and 1 = Read Operation). (RS/Register Select/Control Pin): This pin toggles among command or data register, use to connect a microcontroller unit pin and obtains either 0 or 1(0 = data mode, and 1 = command mode). ![]() (V0/VEE/Control Pin): This pin regulates the difference of the display, use to connect a changeable POT that can supply 0 to 5V. (VCC/VDD/Source Pin): This is the voltage supply pin of the display, use to connect the supply pin of the power source. (VSS/Ground): This is a GND pin of display, use to connect the GND terminal of the microcontroller unit or power source.
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