151 lines
3.4 KiB
C++
151 lines
3.4 KiB
C++
|
|
#define START_STATE 0
|
|
#define PREHEAT_STATE 1
|
|
#define RAMP_UP_STATE 2
|
|
#define TAL_FIRST_STATE 3
|
|
#define PEAK_STATE 4
|
|
#define TAL_SECOND_STATE 5
|
|
#define RAMPDOWN_STATE 6
|
|
#define END_STATE 7
|
|
#define ERROR_STATE 8
|
|
|
|
// error conditions
|
|
#define E_RAMPUP 1 // oven heats up too fast
|
|
#define E_RAMPDOWN_TOO_FAST 2 // oven cools down too fast
|
|
#define E_RAMPDOWN_TOO_SLOW 3 // oven cools down too slow
|
|
#define E_TIME_MAX 4 // reflow process does take too long
|
|
#define E_PEAK_TOO_LONG 5 // package was roasted
|
|
|
|
unsigned int time = 0; // profile seconds
|
|
unsigned int temperatur = 25; // actual oven temp
|
|
unsigned int last_temperatur = 25;
|
|
|
|
unsigned int Ts_max = 200; // °C
|
|
unsigned int Ts_min = 150; // °C
|
|
unsigned int Tp = 260; // 245-260°C
|
|
unsigned int rampup_rate = 3; // 3°C/s
|
|
unsigned int preheat_duration = 100; // 60-180s
|
|
unsigned int tal = 217; // 217°C
|
|
unsigned int tal_duration = 100; // 60-150s
|
|
unsigned int peak_duration = 30; // 20-40s
|
|
unsigned int rampdown_max = 6; // 6°C/s max
|
|
unsigned int rampdown_min = 2; // 2°C/s max
|
|
unsigned int time_max = 480; // 8*60s max
|
|
|
|
unsigned int Ts_min_time = 0;
|
|
unsigned int Ts_max_time = 0;
|
|
unsigned int Tl_time = 0;
|
|
unsigned int Tl_time_end = 0;
|
|
unsigned int Tp_time = 0;
|
|
unsigned int Tp_time_end = 0;
|
|
unsigned int Tl_end_time = 0;
|
|
unsigned int error_condition = 0;
|
|
|
|
byte state = START_STATE;
|
|
|
|
int analogPin = 2;
|
|
|
|
void setup() {
|
|
Serial.begin(9600);
|
|
}
|
|
|
|
void get_temp() {
|
|
// simulating an +1K/s rampup oven
|
|
last_temperatur = temperatur++;
|
|
}
|
|
|
|
boolean check_rampup_rate() {
|
|
if (temperatur - last_temperatur > rampup_rate) {
|
|
error_condition = E_RAMPUP;
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
boolean check_rampdown_rate() {
|
|
unsigned int dt = temperatur - last_temperatur;
|
|
if (dt > rampdown_max) {
|
|
error_condition = E_RAMPDOWN_TOO_FAST;
|
|
return false;
|
|
}
|
|
|
|
if (dt < rampdown_min) {
|
|
error_condition = E_RAMPDOWN_TOO_SLOW;
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
boolean time_max_check() {
|
|
if (time > time_max) {
|
|
error_condition = E_TIME_MAX;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
boolean check_tal_duration() {
|
|
if (time > time_max) {
|
|
error_condition = E_TIME_MAX;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
boolean check_peak_duration() {
|
|
if (Tp_time_end - Tp_time > peak_duration) {
|
|
error_condition = E_PEAK_TOO_LONG;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
void loop() {
|
|
// time = millis() / 1000;
|
|
// get_temp();
|
|
// Serial.print(time);
|
|
// Serial.print(" ");
|
|
// Serial.print(temperatur);
|
|
// Serial.print(" ");
|
|
// Serial.println(last_temperatur);
|
|
|
|
Serial.println(analogRead(analogPin));
|
|
|
|
// switch (state) {
|
|
// case START_STATE:
|
|
// // going from room temp to preheat, nothing to check here
|
|
// if (!check_rampup_rate())
|
|
// goto error;
|
|
// if (temperatur > Ts_min) {
|
|
// Serial.println("Changed state to PREHEAT_STATE");
|
|
// Ts_min_time = time;
|
|
// state++;
|
|
// }
|
|
// case PREHEAT_STATE:
|
|
// if (temperatur > Ts_max) {
|
|
// Serial.println("Changed state to PREHEAT_STATE");
|
|
// Ts_max_time = time;
|
|
// state++;
|
|
// }
|
|
// break;
|
|
// case TAL_FIRST_STATE:
|
|
// break;
|
|
// case PEAK_STATE:
|
|
// break;
|
|
// case TAL_SECOND_STATE:
|
|
// break;
|
|
// case RAMPDOWN_STATE:
|
|
// break;
|
|
// case END_STATE:
|
|
// default:
|
|
// break;
|
|
// }
|
|
//
|
|
delay(1000);
|
|
//
|
|
// return;
|
|
//
|
|
// error:
|
|
// state = END_STATE;
|
|
// Serial.println(error_condition);
|
|
}
|