Arduino example sketch for controlling Hitachi HD44780 compatible 16x2 LCD displays.
This is the code I use to control the display Hitachi HD44780 compatible 16x2 LCD display from my Chinese "Geekcreit"-brand Arduino clone. The display has a I2C module soldered on the back.
It is connected like this:
- LCD: GND -> Uno: GND
- LCD: VCC -> Uno: 5V
- LCD: SDA -> Uno: A4
- LCD: SCL -> Uno: A5
See my blog post at https://oneguyoneblog.com/2016/08/08/geekcreit-uno-16x2-lcd-display/