Defined constant flags for LED colors
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86
main.c
86
main.c
@ -14,91 +14,91 @@
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#define F_CPU 1000000UL
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// includes
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// includes
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#include <util/delay.h>
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#include <avr/interrupt.h>
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#include <avr/io.h>
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#include <stdbool.h>
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#include "main.h"
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// variables:
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volatile unsigned int time_counter, user_time_counter = 0, sec_counter = 0; // global and universal time counter (ms) and second-counter (for AutoOff)
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volatile unsigned int button_1_cup_counter = 0, button_2_cup_counter = 0; // button counter
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// variables:
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volatile unsigned int time_counter, user_time_counter = 0, sec_counter = 0; // global and universal time counter (ms) and second-counter (for AutoOff)
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volatile unsigned int button_1_cup_counter = 0, button_2_cup_counter = 0; // button counter
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volatile unsigned char button_power_counter = 0;
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volatile unsigned char led = 0; // LED status flags
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volatile bool water = false, temperature = false, make_clean = false; // water-, temperature-, clean-flags
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volatile unsigned char make_coffee = 0, pump_time = 0; // pump time, clean mode flag
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volatile unsigned char led = 0; // LED status flags
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volatile bool water = false, temperature = false, make_clean = false; // water-, temperature-, clean-flags
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volatile unsigned char make_coffee = 0, pump_time = 0; // pump time, clean mode flag
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int main (void)
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{
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init (); // initialization
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power_off (); // power off after init sequece
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init (); // initialization
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power_off (); // power off after init sequece
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while (1) // main loop
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while (1) // main loop
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{
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if (sec_counter >= AUTO_OFF_THRESHOLD)
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button_power_counter = BUTTON_THRESHOLD; // check for AutoOff Timer (generate OnOff-button push)
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button_power_counter = BUTTON_THRESHOLD; // check for AutoOff Timer (generate OnOff-button push)
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water = get_water (); // update water state
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temperature = get_temperature (); // update temperature
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water = get_water (); // update water state
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temperature = get_temperature (); // update temperature
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if (button_power_counter >= BUTTON_THRESHOLD) // button "OnOff" pushed:
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if (button_power_counter >= BUTTON_THRESHOLD) // button "OnOff" pushed:
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{
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set_bit(TRIAC_BOILER_w, TRIAC_BOILER_pin); // Boiler off
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make_coffee = 0; // clear coffee flag
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set_bit(TRIAC_BOILER_w, TRIAC_BOILER_pin); // Boiler off
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make_coffee = 0; // clear coffee flag
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while (button_power_counter > 0)
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; // wait until button is releasd (debounce)
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; // wait until button is releasd (debounce)
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power_off (); // call power off sequence
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power_off (); // call power off sequence
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button_power_counter = BUTTON_THRESHOLD; // debounce again after wake up
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button_power_counter = BUTTON_THRESHOLD; // debounce again after wake up
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while (button_power_counter > 0)
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;
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}
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if (button_1_cup_counter >= BUTTON_CLEAN_THR
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&& button_2_cup_counter >= BUTTON_CLEAN_THR) // both coffee buttons pushed: clean mode:
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&& button_2_cup_counter >= BUTTON_CLEAN_THR) // both coffee buttons pushed: clean mode:
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{
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make_clean = true; // clean flag true
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led = 0b00010000; // set blue LED
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make_clean = true; // clean flag true
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led = BLUE; // set blue LED
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while (button_1_cup_counter > 0 && button_2_cup_counter > 0)
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; // debounce buttons
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; // debounce buttons
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}
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else if (button_1_cup_counter >= BUTTON_THRESHOLD
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&& button_2_cup_counter < BUTTON_THRESHOLD) // left coffee button pushed: call espresso
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&& button_2_cup_counter < BUTTON_THRESHOLD) // left coffee button pushed: call espresso
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{
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sec_counter = 0; // reset AutoOff counter
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sec_counter = 0; // reset AutoOff counter
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if (water && temperature) // machine ready:
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if (water && temperature) // machine ready:
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{
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while (button_1_cup_counter > 0) // check if button is pushed long time
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while (button_1_cup_counter > 0) // check if button is pushed long time
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{
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if (button_1_cup_counter > BUTTON_LONG_THR) // button pushed for a long time:
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if (button_1_cup_counter > BUTTON_LONG_THR) // button pushed for a long time:
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{
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make_coffee = 1; // set coffee flag to 1 (1 espresso)
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button_1_cup_counter = 0; // clear button counter
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make_coffee = 1; // set coffee flag to 1 (1 espresso)
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button_1_cup_counter = 0; // clear button counter
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}
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}
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if (make_coffee != 1)
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make_coffee = 3; // set coffee flag to 3 (1 coffee) else
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make_coffee = 3; // set coffee flag to 3 (1 coffee) else
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}
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}
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else if (button_1_cup_counter < BUTTON_THRESHOLD
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&& button_2_cup_counter >= BUTTON_THRESHOLD) // right coffee button pushed: call coffee
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&& button_2_cup_counter >= BUTTON_THRESHOLD) // right coffee button pushed: call coffee
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{
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sec_counter = 0; // reset AutoOff counter
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sec_counter = 0; // reset AutoOff counter
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if (water && temperature) // machine ready:
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if (water && temperature) // machine ready:
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{
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while (button_2_cup_counter > 0) // check if button is pushed long time
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while (button_2_cup_counter > 0) // check if button is pushed long time
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{
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if (button_2_cup_counter > BUTTON_LONG_THR) // button pushed for a long time:
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if (button_2_cup_counter > BUTTON_LONG_THR) // button pushed for a long time:
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{
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make_coffee = 2; // set coffee flag to 2 (2 espresso)
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button_2_cup_counter = 0; // clear button counter
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make_coffee = 2; // set coffee flag to 2 (2 espresso)
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button_2_cup_counter = 0; // clear button counter
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}
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}
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if (make_coffee != 2)
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@ -134,14 +134,14 @@ int main (void)
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{
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set_bit(TRIAC_BOILER_w, TRIAC_BOILER_pin); // boiler off
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led = 0b00000100; // set green LED
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led = GREEN; // set green LED
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if (make_coffee > 0) // if coffee flag is set:
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{
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if (make_coffee < 3)
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led = 0b00001010; // set orange LED blink
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led = ORANGE_BLINK; // set orange LED blink
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else
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led = 0b00001000; // set green LED blink
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led = GREEN_BLINK; // set green LED blink
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if (make_coffee == 1)
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pump_time = TIME_1_ESPRESSO; // 1 cup of espresso (2s preinfusion included)
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@ -186,7 +186,7 @@ int main (void)
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else // temperature too low:
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{
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clear_bit(TRIAC_BOILER_w, TRIAC_BOILER_pin); // boiler on
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led = 0b00000010; // set red LED blink
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led = RED_BLINK; // set red LED blink
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}
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}
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else // water too low:
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@ -194,7 +194,7 @@ int main (void)
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set_bit(TRIAC_BOILER_w, TRIAC_BOILER_pin); // boiler off
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set_bit(TRIAC_PUMP_w, TRIAC_PUMP_pin); // pump off
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led = 0b00100000; // set blue LED blink
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led = BLUE_BLINK; // set blue LED blink
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}
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}
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9
main.h
9
main.h
@ -95,6 +95,15 @@
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#define BUTTON_THRESHOLD 100 // button threshold (ms)
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#define BUTTON_LONG_THR 1500 // button threshold for long time push (ms)
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#define RED 0b00000001
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#define RED_BLINK 0b00000010
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#define GREEN 0b00000100
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#define GREEN_BLINK 0b00001000
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#define BLUE 0b00010000
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#define BLUE_BLINK 0b00100000
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#define ORANGE 0b00000101
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#define ORANGE_BLINK 0b00001010
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// prototypes:
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void init (); // initialization
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void power_off (); // power off to sleep mode
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