pico-watch - An 128×64 OLED watch based on Raspberry Pi Pico.

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Diffstat (limited to 'oled/BitBang_I2C.h')
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#include <stdio.h>
#include "pico/stdlib.h"
extern "C" {
#include "hardware/rtc.h"
}
#include "pico/util/datetime.h"
#include "../oled/ss_oled.h"

#include "main_clock.hpp"
#include "../buttons.hpp"

namespace app_main_clock {
    // Time as string
    // Adapted from pico-sdk/scr/common/pico_util/datetime.c
    void time_as_str(char *buf, uint buf_size, const datetime_t *t) {
        snprintf(buf,
                buf_size,
                "%d:%02d:%02d",
                t->hour,
                t->min,
                t->sec);
    };
    void date_as_str(char *buf, uint buf_size, const datetime_t *t) {
        static const char *DATETIME_DOWS[7] = {
            "Sun",
            "Mon",
            "Tue",
            "Wed",
            "Thu",
            "Fri",
            "Sat",
        };
        snprintf(buf,
                buf_size,
                "%02d-%02d-%02d %s",
                t->year,
                t->month,
                t->day,
                DATETIME_DOWS[t->dotw - 1]);
    };

    void show_datetime(SSOLED *oled) {
        char datetime_buf[256];
        char *datetime_str = &datetime_buf[0];
        datetime_t t;
        rtc_get_datetime(&t);

        // time
        time_as_str(datetime_str, sizeof(datetime_buf), &t);
        oledWriteString(oled, 0,10,3, datetime_str, FONT_12x16, 0, 1);

        // date
        date_as_str(datetime_str, sizeof(datetime_buf), &t);
        oledWriteString(oled, 0,0,7, datetime_str, FONT_8x8, 0, 1);
    }

    // Rendering of the app
    int render(SSOLED *oled) {
        oledWriteString(oled, 0,15,0, (char *)"Test clock", FONT_8x8, 0, 1);
        show_datetime(oled);
        //oledWriteString(oled, 0,0,0, &data[0], FONT_6x8, 0, 1);
        return 0;
    }

    // Interpretation of button inputs
    int btnpressed(SSOLED *oled, uint gpio) {
        return 0;
    }

    // Initlisation of the app.
    int init(SSOLED *oled) {
        return 1; // return 1 when function not implemented
    }

    // Processor intensive operations and functions related to drawing to the screen should only be done when the app is in_foreground(=1). This function is only called when the app is init.
    int bgrefresh(SSOLED *oled, char in_foreground) {
        return 1;
    }

    // Destruction of app, deinitlisation should be done here. This is only called if the app's APPS_DESTROY_ON_EXIT is set to 1. When it is not a "service" app.
    int destroy(SSOLED *oled) {
        return 1;
    }
}

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