97 lines
2.1 KiB
C++
97 lines
2.1 KiB
C++
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unsigned int time = 0; // profile seconds
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unsigned int temperatur = 25; // actual oven temp
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unsigned int last_temperatur = 25;
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unsigned int Ts_max = 200; // °C
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unsigned int Ts_min = 150; // °C
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unsigned int Tp = 260; // 245-260°C
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unsigned int rampup_rate = 3; // 3°C/s
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unsigned int preheat_duration = 100; // 60-180s
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unsigned int tal = 217; // 217°C
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unsigned int tal_duration = 100; // 60-150s
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unsigned int peak_duration = 30; // 20-40s
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unsigned int rampdown_max = 6; // 6°C/s max
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unsigned int time_max = 480; // 8*60s max
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#define START_STATE 0
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#define PREHEAT_STATE 1
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#define TAL_STATE 2
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#define MAX_STATE 3
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#define RAMPDOWN_STATE 4
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#define END_STATE 5
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#define ERROR_STATE 6
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byte state = START_STATE;
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unsigned int Ts_min_time = 0;
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unsigned int Ts_max_time = 0;
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unsigned int Tl_time = 0;
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unsigned int Tp_time = 0;
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unsigned int Tl_end_time = 0;
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#define RAMPUP_TOO_FAST 1
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#define RAMPDOWN_TOO_FAST 2
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unsigned int error_condition = 0;
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void setup() {
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pinMode(13, OUTPUT);
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Serial.begin(9600);
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}
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void get_temp() {
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// simulating an +1K/s rampup oven
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last_temperatur = temperatur++;
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}
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boolean check_rampup_rate() {
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if (temperatur - last_temperatur > rampup_rate) {
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error_condition = RAMPUP_TOO_FAST;
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return false;
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}
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return true;
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}
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void loop() {
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time = millis() / 1000;
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get_temp();
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Serial.print(time);
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Serial.print(" ");
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Serial.print(temperatur);
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Serial.print(" ");
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Serial.println(last_temperatur);
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delay(1000);
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switch (state) {
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case START_STATE:
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// going from room temp to preheat, nothing to check here
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if (!check_rampup_rate())
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goto error;
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if (temperatur > Ts_min) {
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state++;
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}
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case PREHEAT_STATE:
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if (temperatur > Ts_max) {
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Serial.println("Changed state to PREHEAT_STATE");
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state++;
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}
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break;
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case TAL_STATE:
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break;
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case MAX_STATE:
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break;
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case RAMPDOWN_STATE:
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break;
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default:
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break;
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}
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return;
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error:
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state = END_STATE;
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Serial.println(error_condition);
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}
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