connection diagram

The construction is very easy. The connection LCD_RST to VCC saves the port pin we need for the input.

-| t13 |-VCC (3V) / LCD_RST
LCD_SDIN-| |-LCD_SCE
LCD_SCLK-| |-LCD_DC
GND-|______|-INPUT(Button - GND)

Usage

• start editor: connect PortB0 to ground / hold the button (at startup)
• button input: short-NEXT; long-OK
• organisation: Sites->Line->Word->edit Word->Save
• chancel: disconnect from battery