95 lines
2 KiB
C
95 lines
2 KiB
C
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#include "config.h"
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#include <avr/io.h>
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#include <stdbool.h>
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#include <util/delay.h>
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#include <stdio.h>
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#include "74C922.h"
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#include "DHT22.h"
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#include "GDM1602K.h"
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#include "LM335.h"
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enum DisplayMode {TEMP, AVG};
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bool b = false;
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int main() {
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_delay_ms(1000); // Boot up time, let components catch up
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lcd_init();
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encoder_init();
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lcd_clear();
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lcd_write_string("Hello, world!");
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int temp, hum;
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char celc_str[30];
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char temp_with_unit[20] = "";
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char hum_str[30];
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float celcius = 0.0;
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float humidity = 0.0;
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char temp_unit = 'C';
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uint8_t button_data;
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char btn_string[30];
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bool btn_just_pressed = false;
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long loops = 0;
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while(1) {
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// If encoder has data available
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if(encoder_available() == true) {
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loops = 0xFFFF;
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if(!btn_just_pressed) {
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btn_just_pressed = true;
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button_data = encoder_read();
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sprintf(btn_string, "Knapp %d", button_data);
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lcd_clear();
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if(button_data == 11) {
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if(temp_unit == 'C') temp_unit = 'F';
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else if(temp_unit == 'F') temp_unit = 'K';
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else if(temp_unit == 'K') temp_unit = 'C';
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loops = 0;
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}
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if(button_data == 3) {
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sprintf(celc_str, "10h Tmp: %s", temp_with_unit);
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sprintf(hum_str, "10h Hum: %.1f%%", humidity-1);
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lcd_write_strings(celc_str, hum_str);
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}
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}
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} else {
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btn_just_pressed = false;
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}
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if(loops == 0) {
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loops = 0x2FFFF;
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int result = DHT22_Read(&temp, &hum);
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lcd_clear();
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if(result == 0) {
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celcius = ((float)temp)/10.0;
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humidity = ((float) hum)/10.0;
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switch(temp_unit) {
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case 'C':
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sprintf(temp_with_unit, "%.1f %c", celcius, temp_unit);
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break;
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case 'F':
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sprintf(temp_with_unit, "%.1f %c", celcius*9/5+32, temp_unit);
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break;
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case 'K':
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sprintf(temp_with_unit, "%.1f %c", celcius + 273.15, temp_unit);
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break;
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}
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sprintf(celc_str, "Temp: %s", temp_with_unit);
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sprintf(hum_str, "Humidity: %.1f%%", humidity);
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lcd_write_strings(celc_str, hum_str);
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}
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}
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loops--;
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}
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lcd_write_string("Exited...");
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}
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