main.c /*
* menu.c
*
* Created: 30.05.2025 08:26:15
* Author : Student
*/
#include <avr/io.h>
#define F_CPU 11059200UL
#include <util/delay.h>
#include <avr/interrupt.h>
#include <stdio.h>
#include "lcd.h"
#include "ds18b20.h"
#include "spi.h"
#include "I2C.h"
#define HIH8120_ADDR 0x27
volatile int8_t ekran = 0; // 0..4
volatile int8_t subscreen = 0; // 0 lub 1
volatile uint8_t running = 1; // sekundnik ON/OFF
// --- Enkoder INT0 ---
// PD2 - A (CLK)
// PD3 - B (DT)
// PD4 - SW (przycisk)
void encoder_init(void) {
DDRD &= ~((1 << PD2) | (1 << PD3) | (1 << PD4));
PORTD |= (1 << PD2) | (1 << PD3) | (1 << PD4); // Pull-up
MCUCR |= (1 << ISC01); MCUCR &= ~(1 << ISC00); // INT0 on falling edge
GICR |= (1 << INT0);
sei();
}
ISR(INT0_vect) {
if (subscreen == 1) {
subscreen = 0; // wyj�cie z podmenu
return;
}
if (PIND & (1 << PD3)) ekran++;
else ekran--;
if (ekran > 6) ekran = 0;
if (ekran < 0) ekran = 6;
subscreen = 0;
}
int main(void) {
lcd_init();
encoder_init();
ds18b20_init();
SPI_MasterInit();
_delay_ms(50);
DDRB = 0xFF;
PORTB = 0x00;
uint16_t sekundy = 0;
char buf[17];
while (1) {
lcd_clear();
if (!(PIND & (1 << PD4))) {
_delay_ms(300);
if (ekran == 2) {
lcd_show_startstop(running);
running = !running;
} else if (ekran != 3) {
lcd_show_loading();
subscreen = 1;
}
while (!(PIND & (1 << PD4))) _delay_ms(10);
}
switch (ekran) {
case 0:
if (subscreen == 0) {
lcd_gotoxy(0, 0); lcd_puts("Imie, nazwisko");
} else {
lcd_gotoxy(0, 0); lcd_puts("Daniel");
lcd_gotoxy(0, 1);
lcd_send_byte(0, 1); // �
lcd_puts("wi");
lcd_send_byte(1, 1); // "�"
lcd_puts("cki");
}
break;
case 1:
if (subscreen == 0) {
lcd_gotoxy(0, 0); lcd_puts("Numer indeksu");
} else {
lcd_gotoxy(0, 0); lcd_puts("275777");
}
break;
case 2:
lcd_gotoxy(0, 0); lcd_puts("Czas:");
lcd_gotoxy(0, 1);
sprintf(buf, "%us", sekundy);
lcd_puts(buf);
if (running) sekundy++;
_delay_ms(1000);
break;
case 3:
lcd_gotoxy(0, 0); lcd_puts("Resetuj czas");
lcd_gotoxy(0, 1); lcd_puts("Wcisnij przycisk");
break;
case 4:
if (subscreen == 0) {
lcd_gotoxy(0, 0); lcd_puts("Temperatura");
} else {
lcd_gotoxy(0, 0); lcd_puts("Temperatura:");
int16_t temp_raw = ds18b20_read_temp();
if (temp_raw == -1000) {
lcd_gotoxy(0, 1); lcd_puts("Brak czujnika");
} else {
int16_t temp_c = temp_raw / 16;
uint16_t temp_frac = ((temp_raw & 0x0F) * 625) / 100;
lcd_gotoxy(0, 1);
sprintf(buf, "%d.%02d%cC", temp_c, temp_frac, 223);
lcd_puts(buf);
}
}
break;
case 5:
if (subscreen == 0) {
lcd_gotoxy(0, 0); lcd_puts("Temp z czujnika");
lcd_gotoxy(0, 1); lcd_puts("SPI TC77");
} else {
lcd_gotoxy(0, 0); lcd_puts("Temperatura:");
int16_t raw = readTemperatureRaw_TC77();
if (raw == 0xFFFF) {
lcd_gotoxy(0, 1); lcd_puts("Brak SPI danych");
} else {
float temp = raw * 0.0625;
int8_t cal = (int8_t)temp;
uint8_t frac = (uint8_t)((temp - cal) * 100);
lcd_gotoxy(0, 1);
sprintf(buf, "%d.%02d%cC", cal, frac, 223);
lcd_puts(buf);
}
}
break;
case 6:
if (subscreen == 0) {
lcd_gotoxy(0, 0);
lcd_puts("Czujnik HIH8120");
lcd_gotoxy(0, 1);
lcd_puts("I2C - wilg/temp");
} else {
// Zmienna na dane
uint8_t data[4];
volatile uint16_t res_H, res_T;
volatile uint16_t humidity, temperature; // *100
// Sekwencja I2C — działająca:
TWI_start();
TWI_address_transmit();
TWI_stop();
_delay_ms(50); // minimum 36 ms — spokojnie 50 ms OK
TWI_start();
TWI_address_receive();
data[0] = TWI_receive_ACK();
data[1] = TWI_receive_ACK();
data[2] = TWI_receive_ACK();
data[3] = TWI_receive_NACK();
TWI_stop();
// Konwersja danych:
res_H = ((uint16_t)(data[0] & 0x3F) << 8) | data[1];
humidity = (uint16_t)(((float)res_H / 16382.0f) * 10000.0f); // *100
res_T = ((uint16_t)(data[2]) << 6) | (data[3] >> 2);
temperature = (uint16_t)(((float)res_T / 16382.0f) * 16500.0f - 4000.0f); // *100
lcd_gotoxy(0, 0);
char buf[32];
sprintf(buf, "Temp: %d.%02d C", temperature / 100, temperature % 100);
lcd_puts(buf);
lcd_gotoxy(0, 1);
sprintf(buf, "Wilg: %d.%02d %%", humidity / 100, humidity % 100);
lcd_puts(buf);
}
break;
}
_delay_ms(300);
}
}
i2c.c : /*
* I2C_LCD.c
*
* Created: 06.05.2025
* Author : Student
*/
#include <avr/io.h>
#define F_CPU 11059200UL
#include <util/delay.h>
#include <stdio.h>
// LCD PINY
#define LCD_RS PA0
#define LCD_RW PA1
#define LCD_E PA2
#define LCD_D4 PA3
#define LCD_D5 PA4
#define LCD_D6 PA5
#define LCD_D7 PA6
volatile uint8_t odp;
volatile uint8_t MSB_H, LSB_H, MSB_T, LSB_T;
volatile uint16_t res_H, res_T;
volatile uint16_t humidity, temperature; // *100 (czyli np. 2345 = 23.45)
// --------------------- LCD ---------------------
void pulse_E() {
PORTA |= (1 << LCD_E);
_delay_us(1);
PORTA &= ~(1 << LCD_E);
_delay_us(50);
}
void lcd_send_half(uint8_t data) {
PORTA &= ~((1 << LCD_D7) | (1 << LCD_D6) | (1 << LCD_D5) | (1 << LCD_D4));
if (data & (1 << 3)) PORTA |= (1 << LCD_D7);
if (data & (1 << 2)) PORTA |= (1 << LCD_D6);
if (data & (1 << 1)) PORTA |= (1 << LCD_D5);
if (data & (1 << 0)) PORTA |= (1 << LCD_D4);
pulse_E();
}
void lcd_send_byte(uint8_t data, uint8_t is_data) {
if (is_data)
PORTA |= (1 << LCD_RS);
else
PORTA &= ~(1 << LCD_RS);
PORTA &= ~(1 << LCD_RW); // RW = 0
lcd_send_half(data >> 4);
lcd_send_half(data & 0x0F);
_delay_ms(2);
}
void lcd_init(void) {
DDRA |= (1 << LCD_RS) | (1 << LCD_RW) | (1 << LCD_E) |
(1 << LCD_D4) | (1 << LCD_D5) | (1 << LCD_D6) | (1 << LCD_D7);
_delay_ms(15);
lcd_send_half(0x03);
_delay_ms(5);
lcd_send_half(0x03);
_delay_us(100);
lcd_send_half(0x03);
_delay_us(100);
lcd_send_half(0x02); // tryb 4-bitowy
lcd_send_byte(0x28, 0); // 2 linie
lcd_send_byte(0x0C, 0); // ekran ON, kursor OFF
lcd_send_byte(0x06, 0); // auto inkrementacja
lcd_send_byte(0x01, 0); // czyszczenie
_delay_ms(2);
}
void lcd_clear(void) {
lcd_send_byte(0x01, 0);
_delay_ms(2);
}
void lcd_gotoxy(uint8_t x, uint8_t y) {
uint8_t addr = (y == 0) ? 0x00 : 0x40;
lcd_send_byte(0x80 | (addr + x), 0);
}
void lcd_puts(const char* str) {
while (*str) {
lcd_send_byte(*str++, 1);
}
}
// --------------------- TWI ---------------------
void TWI_start(){
TWCR = (1 << TWEN) | (1 << TWSTA) | (1 << TWINT);
while (!(TWCR & (1 << TWINT)));
PORTD = TWSR;
_delay_ms(200);
}
void TWI_address_transmit(){
TWDR = 0b01001000; // Write address
TWCR = (1 << TWEN) | (1 << TWINT);
while (!(TWCR & (1 << TWINT)));
PORTD = TWSR;
_delay_ms(200);
}
void TWI_address_receive(){
TWDR = 0b01001001; // Read address
TWCR = (1 << TWEN) | (1 << TWINT);
while (!(TWCR & (1 << TWINT)));
PORTD = TWSR;
_delay_ms(200);
}
uint8_t TWI_receive_ACK(void) {
TWCR = (1 << TWEN) | (1 << TWINT) | (1 << TWEA); // ACK
while (!(TWCR & (1 << TWINT)));
return TWDR;
}
uint8_t TWI_receive_NACK(void) {
TWCR = (1 << TWEN) | (1 << TWINT); // NACK
while (!(TWCR & (1 << TWINT)));
return TWDR;
}
void TWI_stop(){
TWCR = (1 << TWEN) | (1 << TWSTO);
_delay_ms(200);
PORTD = TWSR;
}
void TWI_calc(){
res_H = ((uint16_t)(MSB_H & 0x3F) << 8) | LSB_H;
humidity = (uint16_t)(((float)res_H / 16382.0f) * 10000.0f); // *100
res_T = ((uint16_t)(MSB_T) << 6) | (LSB_T >> 2);
temperature = (uint16_t)(((float)res_T / 16382.0f) * 16500.0f - 4000.0f); // *100
}
// --------------------- MAIN ---------------------
int main(void)
{
DDRD = 0xFF; // LEDy
PORTD = 0x00;
DDRC = 0x00;
PORTC = 0xFF;
lcd_init();
//ERROR TU CO� JEST NIE TAK Z M�ODSZA CZ�SCI� BIT�W
while (1)
{
TWI_start();
TWI_address_transmit();
// Możesz tu np. wysłać numer rejestru czujnika
TWI_stop();
_delay_ms(10);
TWI_start();
TWI_address_receive();
MSB_H = TWI_receive_ACK();
LSB_H = TWI_receive_ACK();
MSB_T = TWI_receive_ACK();
LSB_T = TWI_receive_NACK();
TWI_stop();
TWI_calc();
// Wyświetlenie danych
char buf[32];
lcd_clear();
lcd_gotoxy(0, 0);
sprintf(buf, "Temp: %d.%02d C", temperature / 100, temperature % 100);
lcd_puts(buf);
lcd_gotoxy(0, 1);
sprintf(buf, "Wilg: %d.%02d %%", humidity / 100, humidity % 100);
lcd_puts(buf);
_delay_ms(2000); // odświeżanie co 2 sekundy
}
}
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