abcminiuser / micromenu-v2 Goto Github PK

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#include <MicroMenu.h>
#include <u8g2.h>
#include <u8x8_avr.h>

#define SH1106_ADDR     0x78

// pin definitions
#define BUTTON_UP       PINB1
#define BUTTON_DOWN     PINB2 

u8g2_t u8g2;

int main(void)
{
    
    // outputs
    //  led
    DDRB |= 1 << PINB0;                     // output PB0
    PORTB ^= 1 << PINB0;                    // toggle only PIN 0 on PORTB

    // inputs
    // buttons
    DDRB &= ~(1 << BUTTON_UP);              // input PB1
    DDRB &= ~(1 << BUTTON_DOWN);            // input PB2

    // button status
    PORTB |= 1 << BUTTON_UP;                // set PB1 to high reading
    PORTB |= 1 << BUTTON_DOWN;              // set PB2 to high reading

    int pressed = 0;

    // oled sh1106 i2c setup
    u8g2_ClearBuffer(&u8g2);

    u8g2_Setup_sh1106_i2c_128x64_noname_f(&u8g2, U8G2_R0, u8x8_byte_avr_hw_i2c, u8x8_avr_delay);
    u8g2_InitInterface(&u8g2);
    u8g2_SetI2CAddress(&u8g2, SH1106_ADDR);
    u8g2_InitDisplay(&u8g2);
    u8g2_SetPowerSave(&u8g2, 0);

    u8g2_SetFont(&u8g2, u8g2_font_smart_patrol_nbp_tr);
    u8g2_SetFontRefHeightText(&u8g2);
    u8g2_SetFontPosTop(&u8g2);
    u8g2_DrawStr(&u8g2, 0, 0, "u8g2 AVR HW I2C");

    u8g2_SendBuffer(&u8g2);

    while (1)
    {
        // turn on led
        if (bit_is_clear(PINB, 1)){

            if (pressed == 0){
                u8g2_ClearBuffer(&u8g2);
                u8g2_DrawStr(&u8g2, 0, 0, "LED ON");
                u8g2_SendBuffer(&u8g2);

                PORTB ^= 1 << PINB0;
                pressed = 1;
            }
        }
        // turn off led
        else if (bit_is_clear(PINB, 2)){

            if (pressed == 1){
                u8g2_ClearBuffer(&u8g2);
                u8g2_DrawStr(&u8g2, 0, 0, "LED OFF");
                u8g2_SendBuffer(&u8g2);

                PORTB |= 1 << PINB0;
                pressed = 0;
            }
        }
    }
}