Keyestudio KS0077, Manual, Page: 90 / 142

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Connection for 2560 R3:
After the connection, upload below code to the controller board and see how it goes.
Sample Code B:
//////////////////////////////////////////////////////////
/*
LiquidCrystal Library - Hello World
Demonstrates the use a 16x2 LCD display. The LiquidCrystal
library works with all LCD displays that are compatible with the
Hitachi HD44780 driver. There are many of them out there, and you
can usually tell them by the 16-pin interface.
This sketch prints "Hello World!" to the LCD
and shows the time.
The circuit:
* LCD RS pin to digital pin 12
* LCD Enable pin to digital pin 11
* LCD D4 pin to digital pin 9
* LCD D5 pin to digital pin 8
* LCD D6 pin to digital pin 7
* LCD D7 pin to digital pin 6
* LCD R/W pin to ground
* LCD VSS pin to ground
* LCD VCC pin to 5V