Embedded-Hacking/0x0017_constants/0x0017_constants.c

#include <stdio.h>
#include <string.h>
#include "pico/stdlib.h"
#include "hardware/i2c.h"
#include "lcd_1602.h"

#define FAV_NUM 42

#define I2C_PORT i2c1
#define I2C_SDA_PIN 2
#define I2C_SCL_PIN 3

const int OTHER_FAV_NUM = 1337;

int main(void) {
    stdio_init_all();

    i2c_init(I2C_PORT, 100000);
    gpio_set_function(I2C_SDA_PIN, GPIO_FUNC_I2C);
    gpio_set_function(I2C_SCL_PIN, GPIO_FUNC_I2C);
    gpio_pull_up(I2C_SDA_PIN);
    gpio_pull_up(I2C_SCL_PIN);

    lcd_i2c_init(I2C_PORT, 0x27, 4, 0x08);

    lcd_set_cursor(0, 0);
    lcd_puts("Reverse");
    lcd_set_cursor(1, 0);
    lcd_puts("Engineering");

    while (true) {
        printf("FAV_NUM: %d\r\n", FAV_NUM);
        printf("OTHER_FAV_NUM: %d\r\n", OTHER_FAV_NUM);
    }
}