stklcode/senseo-control
stklcode/senseo-control
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define coffee flags as pre-processor macros

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Right now we need at least some knowledge about the values 0-4
representing five possible states of coffee making. Make it readable
without this knowledge.
This commit is contained in:
Stefan Kalscheuer 2022-11-23 11:28:46 +01:00
parent dc5dff81f6
commit e1fc2fbe11
Signed by: stefan
GPG Key ID: 3887EC2A53B55430
2 changed files with 28 additions and 19 deletions
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38
firmware/main.c
View File

@ -44,7 +44,7 @@ volatile unsigned int button_2_cup_counter = 0; // Left button counter (2 cu
volatile unsigned char button_power_counter = 0; // Power button counter.
volatile unsigned char led = 0; // LED status flags.
volatile unsigned char state; // Water-, temperature-, clean-flags.
volatile unsigned char make_coffee = 0; // Coffee mode flag.
volatile unsigned char make_coffee = NO_COFFEE; // Coffee mode flag.
volatile unsigned char pump_time = 0; // Pump time.
/**
@ -66,7 +66,7 @@ int main(void) {
if (button_power_counter >= BUTTON_THRESHOLD) { // Button "OnOff" pushed:
set_bit(TRIAC_BOILER_w, TRIAC_BOILER_pin); // Boiler off
make_coffee = 0; // Clear coffee flag.
make_coffee = NO_COFFEE; // Clear coffee flag.
while (button_power_counter > 0); // Wait until button is released (debounce)
@ -88,15 +88,15 @@ int main(void) {
if ((state & S_WATER) && (state & S_TEMP)) { // Machine ready:
while (button_1_cup_counter > 0) { // Check if button is pushed long time.
if (button_1_cup_counter > BUTTON_LONG_THR) { // Button pushed for a long time:
make_coffee = 1; // Set coffee flag to 1 (1 espresso).
make_coffee = ONE_ESPRESSO; // Set coffee flag to 1 (1 espresso).
button_1_cup_counter = 0; // Clear button counter.
}
}
if (make_coffee != 1) {
make_coffee = 3; // Set coffee flag to 3 (1 coffee) otherwise.
if (make_coffee != ONE_ESPRESSO) {
make_coffee = ONE_COFFEE; // Set coffee flag to 3 (1 coffee) otherwise.
}
} else if (COFFEE_WISH) { // Save coffee wish.
make_coffee = 3;
make_coffee = ONE_COFFEE;
}
} else if (button_1_cup_counter < BUTTON_THRESHOLD && button_2_cup_counter >= BUTTON_THRESHOLD) {
// Right coffee button pushed: call coffee.
@ -105,15 +105,15 @@ int main(void) {
if ((state & S_WATER) && (state & S_TEMP)) { // Machine ready:
while (button_2_cup_counter > 0) { // Check if button is pushed long time.
if (button_2_cup_counter > BUTTON_LONG_THR) { // Button pushed for a long time:
make_coffee = 2; // Set coffee flag to 2 (2 espresso).
make_coffee = TWO_ESPRESSO; // Set coffee flag to 2 (2 espresso).
button_2_cup_counter = 0; // Clear button counter.
}
}
if (make_coffee != 2) {
make_coffee = 4; // Set coffee flag to 4 (2 coffee) otherwise.
if (make_coffee != TWO_ESPRESSO) {
make_coffee = TWO_COFFEE; // Set coffee flag to 4 (2 coffee) otherwise.
}
} else if (COFFEE_WISH) { // Save coffee wish
make_coffee = 4;
make_coffee = TWO_COFFEE;
}
}
@ -139,28 +139,28 @@ int main(void) {
led = GREEN; // Set green LED.
if (make_coffee > 0) { // If coffee flag is set:
if (make_coffee < 3) {
if (make_coffee > NO_COFFEE) { // If coffee flag is set:
if (IS_ESPRESSO(make_coffee)) {
led = ORANGE_BLINK; // Set orange LED blink for espresso.
} else {
led = GREEN_BLINK; // Set green LED blink for coffee.
}
switch (make_coffee) {
case 1:
case ONE_ESPRESSO:
pump_time = TIME_1_ESPRESSO; // 1 cup of espresso (2s preinfusion included).
break;
case 2:
pump_time = TIME_2_ESPRESSO; // 2 cups of espresso (2s preinfusion included).
break;
case 3:
case ONE_COFFEE:
pump_time = TIME_1_COFFEE; // 1 cup of coffee.
break;
case 4:
case TWO_COFFEE:
pump_time = TIME_2_COFFEE; // 2 cups of coffee.
break;
default:
make_coffee = 0;
make_coffee = NO_COFFEE;
}
user_time_counter = 0; // Reset user time counter.
@ -169,7 +169,7 @@ int main(void) {
// loop until pump time is reached or water is empty
while (user_time_counter < (pump_time * 1000) && (state & S_WATER) && !(state & S_ESC)) {
// Check for preinfusion break.
if ((make_coffee > 2 || (user_time_counter < 2000 || user_time_counter > 4000)) &&
if ((IS_COFFEE(make_coffee) || (user_time_counter < 2000 || user_time_counter > 4000)) &&
detect_zero_crossing() <= 100) { // Detect zero crossing.
clear_bit(TRIAC_PUMP_w, TRIAC_PUMP_pin); // Generate trigger impulse for pump triac.
_delay_ms(3);
@ -184,12 +184,12 @@ int main(void) {
}
set_bit(TRIAC_PUMP_w, TRIAC_PUMP_pin); // Pump off
make_coffee = 0; // Clear coffee flag.
make_coffee = NO_COFFEE; // Clear coffee flag.
sec_counter = 0; // Reset AutoOff timer.
}
} else { // Temperature too low.
clear_bit(TRIAC_BOILER_w, TRIAC_BOILER_pin); // Boiler on.
if (make_coffee > 0) { // Set red/blue LED blink if coffee wish is saved.
if (make_coffee > NO_COFFEE) { // Set red/blue LED blink if coffee wish is saved.
led = VIOLET_BLINK;
} else { // Set red LED blink if no coffee wish is saved.
led = RED_BLINK;

9
firmware/main.h
View File

@ -117,6 +117,15 @@
#define S_CLEAN 2
#define S_ESC 3
// Coffee mode flags.
#define NO_COFFEE 0
#define ONE_ESPRESSO 1
#define TWO_ESPRESSO 2
#define ONE_COFFEE 3
#define TWO_COFFEE 4
#define IS_COFFEE(VAR) (VAR > 2)
#define IS_ESPRESSO(VAR) (VAR > 0 && VAR < 3)
// LED color flags.
#define RED 0b00000001
#define RED_BLINK 0b00000010