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ArduinoOven.ino
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ArduinoOven.ino
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// Serial Options
//#define DEBUG
//#define DEBUG_JSON
#define DEBUG_PID_JSON
#if defined DEBUG_JSON
#define DEBUG_CONVEYOR_PID_JSON
#define DEBUG_SENSOR_TEMP_JSON
#endif
#if defined DEBUG
#define DEBUG_TOUCHSCREEN
#define DEBUG_SENSOR_SHOW_ERROR
#define DEBUG_PID_GRAPH
#endif
//#define SERIAL_COMMANDER
// Display
#define DISPLAY_WIDTH 320
#define DISPLAY_HEIGHT 240
#define ORIENTATION 1
#include <Adafruit_GFX.h>
#include <UTFTGLUE.h> // Modified file MCUFRIEND_kbv.cpp: Enabled #define SUPPORT_8347D
UTFTGLUE myGLCD(0x9341, A2, A1, A3, A4, A0);
extern uint8_t SmallFont[]; // Declare which fonts we will be using
// Colors - RGB565 color picker -> https://ee-programming-notepad.blogspot.com.co/2016/10/16-bit-color-generator-picker.html
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define GRAY 0x7BEF
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define PALEGREEN 0x9FD3
// Text sizes
#define SET_CONTROL_TEXT_SIZE 6
#define PROFILE_ID_TEXT_SIZE 4
#define PROFILE_PARAM_TEXT_SIZE 1
#define SENSOR_TEXT_SIZE 3
// Thermocouples
#include <max6675.h> // https://github.com/SirUli/MAX6675
#include <SPI.h>
#define PIN_CS_TOP_TEMP_SENSOR_1 23
#define PIN_CS_TOP_TEMP_SENSOR_2 25
#define PIN_CS_BOTTOM_TEMP_SENSOR_1 27
#define PIN_CS_BOTTOM_TEMP_SENSOR_2 29
#define NUM_OF_MEASUREMENTS_TO_READ 10
#define MAX_TEMP_SENSOR_ERROR 30
// Servos
#include <Servo.h> // Modified file ServoTimers.h: disabled timer5 to use analogWrite() on pins 44,45,46. Now timer1 is used.
Servo topServo;
Servo bottomServo;
// pins
#define TOP_SERVO_PIN 45
#define BOTTOM_SERVO_PIN 46
// Motor Speed Control with L298N
#define CONVEYOR_L298N_PWM 44 // ENB
#define CONVEYOR_L298N_DIR1_PIN 42 // IN3
#define CONVEYOR_L298N_DIR2_PIN 40 // IN4
// Encoder
#include <Encoder.h>
#define ENCODER_PIN_1 20
#define ENCODER_PIN_2 21
Encoder myEncoder(ENCODER_PIN_1, ENCODER_PIN_2);
#define ENCODER_REBOUND_MS 20
// Arduino and Oven Specific Parameters
#define STEPS_PER_GEAR_REVOLUTION 400.0
#define GEAR_REVOLUTIONS_TO_CROSS_OVEN 7.333333333
#define CONVEYOR_MAX_STEPS_PER_MS STEPS_PER_GEAR_REVOLUTION / 8000.0 // 0.05
#define STEPS_TO_CROSS_OVEN STEPS_PER_GEAR_REVOLUTION * GEAR_REVOLUTIONS_TO_CROSS_OVEN
#define ARDUINO_TIME_CORRECTION 1.111
#define STEPS_TO_CROSS_OVEN__TIME_CORRECTED STEPS_TO_CROSS_OVEN * ARDUINO_TIME_CORRECTION
// PID
#include <PID_v1.h>
#define PID_MANUAL_THRESHOLD 50
// Precision
#define PID_PRECISION_KP 1
#define PID_PRECISION_KI 0.001
#define PID_PRECISION_KD 10
// Top
#define TOP_PID_KP PID_PRECISION_KP*100
#define TOP_PID_KI PID_PRECISION_KI*100
#define TOP_PID_KD PID_PRECISION_KD*100
// Conveyor
#define CONVEYOR_PID_KP 3
#define CONVEYOR_PID_KI 0.2
#define CONVEYOR_PID_KD 0
// Bottom
#define BOTTOM_PID_KP PID_PRECISION_KP*100
#define BOTTOM_PID_KI PID_PRECISION_KI*100
#define BOTTOM_PID_KD PID_PRECISION_KD*100
// min/max PWM width in uS
#define TOP_PID_MIN_WIDTH 780
#define TOP_PID_MAX_WIDTH 1200
#define BOTTOM_PID_MIN_WIDTH 750
#define BOTTOM_PID_MAX_WIDTH 1500
#define CONVEYOR_PID_MIN_WIDTH 0
#define CONVEYOR_PID_MAX_WIDTH 255
// Graphs
#define TOP_TEMP_GRAPH_RANGE 100
#define BOTTOM_TEMP_GRAPH_RANGE 100
#define CONVEYOR_GRAPH_RANGE 100
#define GRAPH_GRID_HEIGHT DISPLAY_HEIGHT / 10
// TouchScreen
#include <TouchScreen.h> // Adafruit_TouchScreen
#define YP A2 //A3 for ILI9320
#define YM 6 //9
#define XM A1
#define XP 7 //8
TouchScreen myTouch(XP, YP, XM, YM, 300);
#define NUM_OF_SAMPLES 10
#define QUORUM 3
#define DEAD_ZONE 2 // outest pixels of blocks where Touch-Events are disabled
// Touch events
#define CLICK_EVENT 0
#define LONG_CLICK_EVENT 1+CLICK_EVENT
#define HOLD_EVENT 1+LONG_CLICK_EVENT
#define LONG_HOLD_EVENT 1+HOLD_EVENT
// Time
#define CLICK_TIME 30 // minimum ms since touch started to trigger CLICK_EVENT
#define HOLD_TIME 70 // minimum ms since touch started to trigger HOLD_EVENT
#define LONG_CLICK_TIME 600 // minimum ms since touch started to trigger LONG_CLICK_EVENT
#define LONG_HOLD_TIME LONG_CLICK_TIME // minimum ms since touch started to trigger LONG_HOLD_EVENT
// States # Should've used enum
#define CONTROLLING_SETPOINTS 0
#define CONTROLLING_TOP_PID 1+CONTROLLING_SETPOINTS
#define CONTROLLING_BOTTOM_PID 1+CONTROLLING_TOP_PID
#define CONTROLLING_CONVEYOR_PID 1+CONTROLLING_BOTTOM_PID
#define SHOWING_GRAPH 1+CONTROLLING_CONVEYOR_PID
#define CONTROLLING_TOP_OUTPUT_LIMITS 1+SHOWING_GRAPH
#define CONTROLLING_CONVEYOR_OUTPUT_LIMITS 1+CONTROLLING_TOP_OUTPUT_LIMITS
#define CONTROLLING_BOTTOM_OUTPUT_LIMITS 1+CONTROLLING_CONVEYOR_OUTPUT_LIMITS
// Threads
#include <Thread.h>
Thread updateSensorsThread = Thread();
Thread drawSensorsThread = Thread();
Thread topPIDThread = Thread();
Thread bottomPIDThread = Thread();
Thread conveyorPIDThread = Thread();
Thread drawGraphPointThread = Thread();
#define UPDATE_SENSORS_INTERVAL 1000
#define TOP_PID_INTERVAL 1000
#define BOTTOM_PID_INTERVAL 1000
#define CONVEYOR_PID_INTERVAL 1000
#define DRAW_SENSORS_INTERVAL 1000
#define DRAW_GRAPH_POINT_INTERVAL 1000
// Sensors Draw
#define ERROR_DURATION_MS 10000
//Turns
#define TOP_TURN 0
#define CONVEYOR_TURN 1+TOP_TURN
#define BOTTOM_TURN 1+CONVEYOR_TURN
// EEPROM
#include <EEPROM.h>
struct PidEEPROM { int kp; int ki; int kd; int minOutput; int startOutput; int maxOutput; };
struct ServoEEPROM { int minWidth; int maxWidth; };
struct ProfileEEPROM { int topTemp; int cookTime; int bottomTemp; };
// Addresses
// PIDs
#define TOP_PID_ADDRESS 0
#define CONVEYOR_PID_ADDRESS sizeof(PidEEPROM)+TOP_PID_ADDRESS
#define BOTTOM_PID_ADDRESS sizeof(PidEEPROM)+CONVEYOR_PID_ADDRESS
// Profiles
#define PROFILE_ADDRESS sizeof(PidEEPROM)+BOTTOM_PID_ADDRESS
// Relays
#define SPARK_PIN 35
#define VALVE_PIN 37
#define SPARK_IGNITION_TIME 3000 // ms
//#define VALVE_TIME 200
// ###############################################################
// ##################### GLOBAL VARIABLES ####################
// ###############################################################
// Display
int dispX, dispY;
byte gridWidth, gridHeight, gridInternalWidth, gridInternalHeight;
bool isOutline = false;
// Touch
TSPoint avgTouchPoint, last_avgTouchPoint;
//, touchPoint, touchPointsArr[NUM_OF_SAMPLES];
// byte touchPointsArrIndex;
bool TouchStatus; // the current value read from isPressed()
bool lastTouchStatus = false;
long timeTouchStarted, timeSinceTouchStarted, lastTimeSinceTouchStarted;
// Encoder
long last_computeConveyorTime;
// Graph
double *inputGraph, *setpointGraph, *outputGraph;
int minInputSetpointGraph, maxInputSetpointGraph, minOutputGraph, maxOutputGraph;
// Misc
byte activeProfile;
byte state;
// ###############################################################
// ################ GLOBAL FUNCTIONS FOR CLASSES #################
// ###############################################################
String stringifyDouble (double number) {
char buffer[10];
if (number == int(number)) return String(int(number));
else if (number > 0) {
if (number < 0.1) return String(dtostrf(number,5,4, buffer)).substring(1);
else if (number < 1) return String(dtostrf(number,4,3, buffer)).substring(1);
else return dtostrf(number,1,1, buffer);
}
else if (number > -1 and number < 10) return dtostrf(number,4,2, buffer);
else return dtostrf(number,1,1, buffer);
}
byte getFontSize(String number_str, byte normalFontSize) {
byte number_length = number_str.length();
return (number_length <= 3) ? normalFontSize : ( normalFontSize - (number_length-3) );
}
//DEBUG
void debug(String str) { Serial.println(str); }
void serialStartJsonObject(String name) { Serial.print("{\"name\":\""+name+"\",\"data\":{"); }
void serialEndJsonObject() { Serial.println("}},"); }
void serialAddJsonObject(String key, double value) { Serial.print("\""+key+"\":"+String(value)+","); }
void serialAddJsonObject(String key, String value) { Serial.print("\""+key+"\":\""+value+"\","); }
void serialStartJsonArray() { Serial.print("["); }
void serialEndJsonArray() { Serial.print("],"); }
void serialAddJsonArray(double value) { Serial.print(String(value)+","); }
void serialAddJsonArray(String value) { Serial.print("\""+value+"\","); }
// ###############################################################
// ######################### CLASSES #########################
// ###############################################################
class Coordinates {
public:
int startX, startY, endX, endY;
virtual void setCoordinates(int x, int y) {
startX = x;
startY = y;
endX = startX+gridInternalWidth;
endY = startY+gridInternalHeight;
};
};
class Block : public Coordinates {
public:
uint16_t errorbackgroundColor = MAGENTA;
uint16_t errorforegroundColor = WHITE;
uint16_t highlightbackgroundColor = GREEN;
uint16_t highlightforegroundColor = BLACK;
uint16_t lowlightbackgroundColor = BLACK;
uint16_t lowlightforegroundColor = WHITE;
uint16_t* backgroundColor = & lowlightbackgroundColor;
uint16_t* foregroundColor = & lowlightforegroundColor;
uint16_t old_backgroundColor;
long lastTimeSinceError;
bool isErrorActive = false;
void highlight(void) { backgroundColor = & highlightbackgroundColor; foregroundColor = & highlightforegroundColor; };
void lowlight(void) { backgroundColor = & lowlightbackgroundColor; foregroundColor = & lowlightforegroundColor; };
void drawBackground (void) {
myGLCD.setColor(*backgroundColor);
myGLCD.fillRect(startX, startY, endX, endY);
}
void drawBackgroundIfHasChanged (void) {
if (old_backgroundColor != *backgroundColor) {
drawBackground();
old_backgroundColor = *backgroundColor;
}
}
void showError (void) {
lastTimeSinceError = millis();
backgroundColor = & errorbackgroundColor;
foregroundColor = & errorforegroundColor;
isErrorActive = true;
};
void showError (String str) {
showError();
#if defined DEBUG_SENSOR_SHOW_ERROR
Serial.print("ERROR: ");Serial.print(str);Serial.println();
#endif
}
void removeError (void) {
isErrorActive = false;
lowlight();
};
};
class MinusButton : public Block {
public:
void draw(void) {
drawBackground();
myGLCD.setColor(*foregroundColor);
myGLCD.fillRect(startX+15, startY+27, startX+46, startY+34);
};
MinusButton() {
lowlightbackgroundColor = BLUE;
lowlightforegroundColor = BLACK;
}
};
class SetControl : public Block {
uint16_t getRGB565(byte red, byte green, byte blue) { return ((red&0b11111000) << 8) | ((green&0b11111100) << 3) | (blue>>3);}
uint16_t map_7Bits_to_RGB565FromBlueToRed(uint8_t num7Bits) {
/*
maps 0-128 to blue-red (passing through green)
There are 4 cases to map
- 0-31: blue=maximum green=increasing red=0
- 32-63: blue=decreasing green=maximum red=0
- 64-95: blue=0 green=maximum red=increasing
- 96-127: blue=0 green=decreasing red=maximum
*/
byte red, green, blue;
if (num7Bits < 32 ) { blue = 255; green = (num7Bits<<3); red = 0; }
else if (num7Bits < 64 ) { blue = 255-(num7Bits<<3); green = 255; red = 0; }
else if (num7Bits < 96 ) { blue = 0; green = 255; red = (num7Bits<<3); }
else if (num7Bits < 128) { blue = 0; green = 255-(num7Bits<<3); red = 255; }
uint16_t color = getRGB565(red, green, blue);
return color;
}
public:
double* value;
uint8_t servo_status;
void setCoordinates(int x, int y) {
startX = x;
startY = y;
endX = startX+gridInternalWidth+gridWidth; // +gridWidth for 2 columns width
endY = startY+gridInternalHeight;
};
void draw(double number) {
drawBackground();
lowlightforegroundColor = map_7Bits_to_RGB565FromBlueToRed(servo_status);
myGLCD.setTextColor(*foregroundColor, *backgroundColor);
String number_str = stringifyDouble(number);
myGLCD.setTextSize( getFontSize(number_str, SET_CONTROL_TEXT_SIZE) );
myGLCD.print(number_str, startX+6, startY+11);
};
void draw(void) {draw(*value);};
};
class PlusButton : public Block {
public:
void draw(void) {
drawBackground();
myGLCD.setColor(*foregroundColor);
myGLCD.fillRect(startX+27, startY+15, startX+34, startY+46);
myGLCD.fillRect(startX+15, startY+27, startX+46, startY+34);
};
PlusButton() {
lowlightbackgroundColor = RED;
lowlightforegroundColor = BLACK;
}
};
class Sensors : public Block {
public:
virtual void draw(void){};
virtual void update(void){};
virtual double read(void){};
};
class TempSensors : public Sensors {
public:
double value1Avg;
double value2Avg;
double values1[NUM_OF_MEASUREMENTS_TO_READ];
double values2[NUM_OF_MEASUREMENTS_TO_READ];
byte counter;
MAX6675 Sensor1;
MAX6675 Sensor2;
TempSensors(byte pinSensor1CS,byte pinSensor2CS):
Sensor1(pinSensor1CS),
Sensor2(pinSensor2CS)
{};
void draw(void) {
if ( isErrorActive and ERROR_DURATION_MS < millis() - lastTimeSinceError ) removeError();
drawBackgroundIfHasChanged();
myGLCD.setTextColor(*foregroundColor, *backgroundColor);
myGLCD.setTextSize(SENSOR_TEXT_SIZE);
myGLCD.print(String(int(value1Avg)), startX+7, startY+7);
myGLCD.print(String(int(value2Avg)), startX+7, startY+35);
/* // Draw symbol: ±
myGLCD.setColor(foregroundColor);
myGLCD.fillRect(startX+7, startY+35+18 , startX+7+13, startY+35+19);
myGLCD.fillRect(startX+7, startY+35+7 , startX+7+13, startY+35+8);
myGLCD.fillRect(startX+7+6, startY+35 , startX+7+7, startY+35+15);
*/
};
double getAvgTemp (double value[NUM_OF_MEASUREMENTS_TO_READ]) {
double valueSum=0;
byte validReads=0;
for (byte i=0; i<NUM_OF_MEASUREMENTS_TO_READ; i++) {
if (!isnan(value[i])) {
valueSum += value[i];
validReads++;
};
};
if (validReads > 0) return valueSum / validReads; else return NAN;
};
double updateSensor(double measurements[NUM_OF_MEASUREMENTS_TO_READ], double* avg_measurements, double new_measurement) {
if (!isnan(new_measurement)) {
double valueDiff = new_measurement - *avg_measurements;
if ( valueDiff > MAX_TEMP_SENSOR_ERROR ) { measurements[counter] = *avg_measurements + MAX_TEMP_SENSOR_ERROR; showError(String(new_measurement)); }
else if ( valueDiff < -MAX_TEMP_SENSOR_ERROR ) { measurements[counter] = *avg_measurements - MAX_TEMP_SENSOR_ERROR; showError(String(new_measurement)); }
else measurements[counter] = new_measurement;
}
else measurements[counter] = *avg_measurements;
*avg_measurements = getAvgTemp(measurements);
};
void update(void) {
double new_measurement1 = Sensor1.readCelsius();
double new_measurement2 = Sensor2.readCelsius();
#if defined DEBUG_SENSOR_TEMP_JSON
serialStartJsonObject("temperatures");
serialStartJsonArray();
serialAddJsonArray(new_measurement1);
serialAddJsonArray(new_measurement2);
serialEndJsonArray();
serialEndJsonObject();
#endif
updateSensor(values1, &value1Avg, new_measurement1);
updateSensor(values2, &value2Avg, new_measurement2);
if (counter == NUM_OF_MEASUREMENTS_TO_READ-1) counter=0; else counter++;
};
double read(void) {
byte validReads=0; // If it's not set to 0, then "if (validReads > 0)" will always be True
double valueSum;
double reading=0;
if (value1Avg > 0) { valueSum += value1Avg; validReads++; }
if (value2Avg > 0) { valueSum += value2Avg; validReads++; }
if (validReads > 0) reading = valueSum / validReads;
else showError("No valid reads top sensors");
return reading;
};
};
class EncoderSensor : public Sensors {
public:
double value;
void draw(void) {
drawBackground();
myGLCD.setTextColor(*foregroundColor, *backgroundColor);
String value_str = stringifyDouble(value);
if (value_str.length() <= 3) {
myGLCD.setTextSize(SENSOR_TEXT_SIZE);
myGLCD.print(value_str, startX+7, startY+20);
}
else {
myGLCD.setTextSize(SENSOR_TEXT_SIZE-1);
myGLCD.print(value_str, startX+3, startY+23);
}
};
};
class Control : public Coordinates {
public:
double setpoint;
// Amount to increase/decrease setcontrol
double short_event_amount = 0.1;
double long_event_amount = 1;
MinusButton minusButton;
SetControl setControl;
PlusButton plusButton;
EncoderSensor sensors;
virtual void setCoordinates(int x, int y) {
startX = x;
startY = y;
endX = dispX-1 - isOutline;
endY = startY + gridInternalHeight;
minusButton.setCoordinates(startX, startY);
setControl.setCoordinates(startX+gridWidth, startY);
plusButton.setCoordinates(startX+gridWidth*3, startY);
sensors.setCoordinates(startX+gridWidth*4, startY);
};
virtual void draw(double setControlNumber) {
minusButton.draw();
setControl.draw(setControlNumber);
plusButton.draw();
sensors.draw();
};
virtual void draw(void) {draw(*setControl.value);};
virtual double amountToChange(byte event){ return (event==LONG_HOLD_EVENT) ? long_event_amount : short_event_amount; }
virtual void decreaseSetControl(byte event) {setpoint-=amountToChange(event); setControl.draw();}
virtual void increaseSetControl(byte event) {setpoint+=amountToChange(event); setControl.draw();}
} conveyorControl;
class TempControl : public Control {
public:
TempSensors sensors;
TempControl(byte pinSensor1CS,byte pinSensor2CS):
sensors(pinSensor1CS, pinSensor2CS)
{
// Amount to increase/decrease setcontrol
short_event_amount = 1;
long_event_amount = 10;
};
void setCoordinates(int x, int y) {
startX = x;
startY = y;
endX = dispX-1 - isOutline;
endY = startY + gridInternalHeight;
minusButton.setCoordinates(startX, startY);
setControl.setCoordinates(startX+gridWidth, startY);
plusButton.setCoordinates(startX+gridWidth*3, startY);
sensors.setCoordinates(startX+gridWidth*4, startY);
};
void draw(double setControlNumber) {
minusButton.draw();
setControl.draw(setControlNumber);
plusButton.draw();
sensors.draw();
};
void draw(void) {draw(*setControl.value);};
// TempControl(SensorCS1, SensorCS2)
} topTempControl(PIN_CS_TOP_TEMP_SENSOR_1,
PIN_CS_TOP_TEMP_SENSOR_2
),
bottomTempControl(PIN_CS_BOTTOM_TEMP_SENSOR_1,
PIN_CS_BOTTOM_TEMP_SENSOR_2
);
class Pid : public PID {
public:
const String name;
double kp, ki, kd;
double input, output, setpoint;
double minOutput, startOutput, maxOutput;
byte EEPROMaddress, outputLimitsEEPROMaddress;
Pid(String _name, double _kp, double _ki, double _kd, byte pOn, byte DIR, byte address):
name(_name),
kp(_kp),
ki(_ki),
kd(_kd),
EEPROMaddress(address),
PID(&input, &output, &setpoint, _kp, _ki, _kd, pOn, DIR)
{};
int minOutputGraph(void) { return (GetDirection() == DIRECT) ? minOutput : maxOutput; };
int maxOutputGraph(void) { return (GetDirection() == DIRECT) ? maxOutput : minOutput; };
void updateTuning(void) {SetTunings(kp,ki,kd);};
void updateOutputLimits(void) {SetOutputLimits(minOutput, maxOutput);};
void increaseKp (byte event) {byte scale=(event==LONG_HOLD_EVENT)?10:1; kp+=scale*PID_PRECISION_KP; updateTuning(); topTempControl.setControl.draw(kp);};
void decreaseKp (byte event) {byte scale=(event==LONG_HOLD_EVENT)?10:1; kp-=scale*PID_PRECISION_KP; updateTuning(); topTempControl.setControl.draw(kp);};
void increaseKi (byte event) {byte scale=(event==LONG_HOLD_EVENT)?10:1; ki+=scale*PID_PRECISION_KI; updateTuning(); conveyorControl.setControl.draw(ki);};
void decreaseKi (byte event) {byte scale=(event==LONG_HOLD_EVENT)?10:1; ki-=scale*PID_PRECISION_KI; updateTuning(); conveyorControl.setControl.draw(ki);};
void increaseKd (byte event) {byte scale=(event==LONG_HOLD_EVENT)?10:1; kd+=scale*PID_PRECISION_KD; updateTuning(); bottomTempControl.setControl.draw(kd);};
void decreaseKd (byte event) {byte scale=(event==LONG_HOLD_EVENT)?10:1; kd-=scale*PID_PRECISION_KD; updateTuning(); bottomTempControl.setControl.draw(kd);};
void increaseMinOutput (byte event) {byte scale=(event==LONG_HOLD_EVENT)?10:1; minOutput+= scale*1; updateOutputLimits(); topTempControl.setControl.draw (minOutput);};
void decreaseMinOutput (byte event) {byte scale=(event==LONG_HOLD_EVENT)?10:1; minOutput-= scale*1; updateOutputLimits(); topTempControl.setControl.draw (minOutput);};
void increaseStartOutput (byte event) {byte scale=(event==LONG_HOLD_EVENT)?10:1; startOutput+=scale*1; updateOutputLimits(); conveyorControl.setControl.draw (startOutput);};
void decreaseStartOutput (byte event) {byte scale=(event==LONG_HOLD_EVENT)?10:1; startOutput-=scale*1; updateOutputLimits(); conveyorControl.setControl.draw (startOutput);};
void increaseMaxOutput (byte event) {byte scale=(event==LONG_HOLD_EVENT)?10:1; maxOutput+= scale*1; updateOutputLimits(); bottomTempControl.setControl.draw (maxOutput);};
void decreaseMaxOutput (byte event) {byte scale=(event==LONG_HOLD_EVENT)?10:1; maxOutput-= scale*1; updateOutputLimits(); bottomTempControl.setControl.draw (maxOutput);};
void saveParameters (void) {
PidEEPROM pid;
pid.kp = (int)(kp/PID_PRECISION_KP);
pid.ki = (int)(ki/PID_PRECISION_KI);
pid.kd = (int)(kd/PID_PRECISION_KD);
pid.minOutput = (int)minOutput;
pid.startOutput = (int)startOutput;
pid.maxOutput = (int)maxOutput;
EEPROM.put(EEPROMaddress, pid);
}
void loadParameters (void) {
PidEEPROM pid;
EEPROM.get(EEPROMaddress, pid);
if (pid.kp >= 0 and pid.kp < 10000) kp = pid.kp*PID_PRECISION_KP;
if (pid.ki >= 0 and pid.ki < 10000) ki = pid.ki*PID_PRECISION_KI;
if (pid.kd >= 0 and pid.kd < 10000) kd = pid.kd*PID_PRECISION_KD;
if (pid.minOutput >= 0 and pid.minOutput < 2000) minOutput = pid.minOutput;
if (pid.startOutput >= 0 and pid.startOutput < 2000) startOutput = pid.startOutput;
if (pid.maxOutput >= 0 and pid.maxOutput < 2000) maxOutput = pid.maxOutput;
updateTuning(); updateOutputLimits();
}
};
Pid topPID ("top", TOP_PID_KP , TOP_PID_KI , TOP_PID_KD , P_ON_E, REVERSE, TOP_PID_ADDRESS);
Pid bottomPID ("bottom", BOTTOM_PID_KP , BOTTOM_PID_KI , BOTTOM_PID_KD , P_ON_E, REVERSE, BOTTOM_PID_ADDRESS);
Pid conveyorPID("conveyor", CONVEYOR_PID_KP, CONVEYOR_PID_KI, CONVEYOR_PID_KD, P_ON_E, DIRECT , CONVEYOR_PID_ADDRESS);
class Profile : public Block {
public:
int bottomTemp;
int topTemp;
double cookTime;
bool isActive = false;
byte id;
Profile(int _topTemp, int _cookTime, int _bottomTemp):
topTemp(_topTemp),
cookTime(_cookTime),
bottomTemp(_bottomTemp)
{};
void draw (void)
{
if (isActive) highlight();
else lowlight();
drawBackground();
myGLCD.setTextColor(*foregroundColor, *backgroundColor);
myGLCD.setTextSize(PROFILE_ID_TEXT_SIZE);
myGLCD.print(String(id+1), startX+9 , startY+9);
myGLCD.setTextSize(PROFILE_PARAM_TEXT_SIZE);
myGLCD.print(String(topTemp), startX+38, startY+6);
myGLCD.print(stringifyDouble(cookTime), startX+38, startY+6+14);
myGLCD.print(String(bottomTemp), startX+38, startY+6+28);
};
void load(void)
{
topTempControl.setpoint = topTemp;
conveyorControl.setpoint = cookTime;
bottomTempControl.setpoint = bottomTemp;
isActive = true;
draw();
topTempControl.setControl.draw();
conveyorControl.setControl.draw();
bottomTempControl.setControl.draw();
};
void unload(void)
{
isActive = false;
draw();
};
void save(void)
{
topTemp = topTempControl.setpoint;
cookTime = conveyorControl.setpoint;
bottomTemp = bottomTempControl.setpoint;
isActive = true;
saveToEEPROM();
draw();
};
void saveToEEPROM(void)
{
ProfileEEPROM profile;
profile.topTemp = topTemp;
profile.cookTime = int( cookTime * 10 );
profile.bottomTemp = bottomTemp;
byte address = PROFILE_ADDRESS + sizeof(ProfileEEPROM) * id;
EEPROM.put(address, profile);
isActive = true;
};
} profiles[] = {
// Profile(topTemp, cookTime, bottomTemp)
Profile(0,10,0),
Profile(320,-10,270),
Profile(320,10,270),
Profile(5,5,5),
Profile(-5,-5,-5),
};
byte const profilesSize = sizeof(profiles) / sizeof(Profile);
/*
class Profiles : public Block {
public:
Profile profile1;
Profile profile2;
Profile profile3;
Profile profile4;
Profile profile5;
Profiles(Profile _profile1, Profile _profile2, Profile _profile3, Profile _profile4, Profile _profile5):
profile1(_profile1),
profile2(_profile2),
profile3(_profile3),
profile4(_profile4),
profile5(_profile5)
{};
void load(byte id)
{
profiles[activeProfile].unload();
profiles[id].load();
activeProfile = id;
}
} profiles2(
// Profile(topTemp, cookTime, bottomTemp)
Profile(110,120,130),
Profile(210,220,230),
Profile(310,320,330),
Profile(410,420,430),
Profile(510,520,530)
);
*/
// ###############################################################
// ##################### GLOBAL FUNCTIONS ####################
// ###############################################################
void calculateProfilesProperties (void)
{
for (byte i=0; i<profilesSize; i++)
{
ProfileEEPROM profile;
byte address = PROFILE_ADDRESS + sizeof(ProfileEEPROM) * i;
EEPROM.get(address, profile);
if (profile.topTemp >= 0 and profile.topTemp < 1000) profiles[i].topTemp = profile.topTemp;
if (profile.cookTime >= -500 and profile.cookTime < 500 ) profiles[i].cookTime = profile.cookTime / 10.0;
if (profile.bottomTemp >= 0 and profile.bottomTemp < 1000) profiles[i].bottomTemp = profile.bottomTemp;
profiles[i].id = i;
profiles[i].startX = gridWidth*i + isOutline;
profiles[i].startY = isOutline;
profiles[i].endX = profiles[i].startX + gridInternalWidth;
profiles[i].endY = topTempControl.startY - 2;
}
}
TSPoint readResistiveTouch(void)
{
TSPoint tp = myTouch.getPoint();
pinMode(YP, OUTPUT); //restore shared pins
pinMode(XM, OUTPUT);
return tp;
}
TSPoint getAvgTouchPoint(void)
{
TSPoint tp;
tp.x=0;
tp.y=0;
tp.z=0;
byte count = 0;
for (byte i=0; i < NUM_OF_SAMPLES; i++)
{
TSPoint tptmp = readResistiveTouch();
if (tptmp.z > 50 )
{
tp.x += tptmp.x;
tp.y += tptmp.y;
tp.z += tptmp.z;
count++;
}
}
if (count < QUORUM) tp.z=0;
else { tp.x /= count; tp.y /= count; tp.z /= count; } // get average
int temp = map(tp.y, 930, 140, 0, dispX-1);
tp.y = map(tp.x, 150, 900, 0, dispY-1);
tp.x = temp;
return tp;
}
bool isPressed (TSPoint tp)
{
return tp.z > 0;
}
bool hasTouchStatusChanged () {
return TouchStatus != lastTouchStatus;
}
void serialGraphPIDs(Pid pid); // Compiler complains otherwise ¬¬. Apparently one cannot use functions with parameters that are instances of classes declared in the same file --_(¬.¬)_--
void serialGraphPIDs(Pid pid)
{
int input = pid.input;
int setpoint = pid.setpoint;
int output = map(pid.output, pid.minOutputGraph(), pid.maxOutputGraph(), 101, 399);
Serial.print(output); Serial.print(" ");
Serial.print(input); Serial.print(" ");
Serial.print(setpoint); Serial.print(" ");
Serial.print(100); Serial.print(" ");
Serial.print(400); Serial.print(" ");
Serial.println();
}
void drawProfiles(void)
{
for (byte i=0; i<profilesSize; i++)
{
profiles[i].draw();
}
}
void drawDivisions(void)
{
myGLCD.setColor(WHITE);
if (isOutline) {myGLCD.drawRect(0,0,dispX-1,dispY-1);}
myGLCD.drawLine(gridWidth-1+isOutline , dispY-1 , gridWidth-1+isOutline , 0);
myGLCD.drawLine(gridWidth*2-1+isOutline, 0 , gridWidth*2-1+isOutline, dispY-gridHeight*3);
myGLCD.drawLine(gridWidth*3-1+isOutline, dispY-1 , gridWidth*3-1+isOutline, 0);
myGLCD.drawLine(gridWidth*4-1+isOutline, dispY-1 , gridWidth*4-1+isOutline, 0);
myGLCD.drawLine(0 , topTempControl.startY-1 , dispX-1 , topTempControl.startY-1);
myGLCD.drawLine(0 , conveyorControl.startY-1 , dispX-1 , conveyorControl.startY-1);
myGLCD.drawLine(0 , bottomTempControl.startY-1, dispX-1 , bottomTempControl.startY-1);
}
void drawEverything(void)
{
switch (state) {
case CONTROLLING_SETPOINTS:
drawDivisions();
drawProfiles();
topTempControl.draw();
conveyorControl.draw();
bottomTempControl.draw();
break;
case CONTROLLING_TOP_PID:
drawDivisions();
drawProfiles();
topTempControl.draw(topPID.kp);
conveyorControl.draw(topPID.ki);
bottomTempControl.draw(topPID.kd);
break;
case CONTROLLING_BOTTOM_PID:
drawDivisions();
drawProfiles();
topTempControl.draw(bottomPID.kp);
conveyorControl.draw(bottomPID.ki);
bottomTempControl.draw(bottomPID.kd);
break;
case CONTROLLING_CONVEYOR_PID:
drawDivisions();
drawProfiles();
topTempControl.draw(conveyorPID.kp);
conveyorControl.draw(conveyorPID.ki);
bottomTempControl.draw(conveyorPID.kd);
break;
case SHOWING_GRAPH:
// Clean screen
myGLCD.setColor(BLACK); myGLCD.fillRect(0,0, dispX-1,dispY-1);
// Draw Grid
myGLCD.setColor(GRAY);
for (int row=0; row < dispY; row+=GRAPH_GRID_HEIGHT) myGLCD.drawLine(0, row, dispX-1, row);
break;
case CONTROLLING_TOP_OUTPUT_LIMITS:
drawDivisions();
drawProfiles();
topTempControl.draw(topPID.minOutput);
conveyorControl.draw(topPID.startOutput);
bottomTempControl.draw(topPID.maxOutput);
break;
case CONTROLLING_BOTTOM_OUTPUT_LIMITS:
drawDivisions();
drawProfiles();
topTempControl.draw(bottomPID.minOutput);
conveyorControl.draw(bottomPID.startOutput);
bottomTempControl.draw(bottomPID.maxOutput);
break;
case CONTROLLING_CONVEYOR_OUTPUT_LIMITS:
drawDivisions();
drawProfiles();
topTempControl.draw(conveyorPID.minOutput);
conveyorControl.draw(conveyorPID.startOutput);
bottomTempControl.draw(conveyorPID.maxOutput);
break;
}
}
void controlSetpoints (void) {
state = CONTROLLING_SETPOINTS;
topTempControl.setControl.value = & topTempControl.setpoint;
conveyorControl.setControl.value = & conveyorControl.setpoint;
bottomTempControl.setControl.value = & bottomTempControl.setpoint;
topTempControl.setControl.lowlight();
conveyorControl.setControl.lowlight();
bottomTempControl.setControl.lowlight();
topTempControl.sensors.lowlight();
conveyorControl.sensors.lowlight();
bottomTempControl.sensors.lowlight();
drawEverything();
}
void controlBottomPID (void) {
state = CONTROLLING_BOTTOM_PID;
topTempControl.setControl.value = & bottomPID.kp;
conveyorControl.setControl.value = & bottomPID.ki;
bottomTempControl.setControl.value = & bottomPID.kd;
topTempControl.setControl.lowlight();
conveyorControl.setControl.lowlight();
bottomTempControl.setControl.lowlight();
topTempControl.sensors.lowlight();
conveyorControl.sensors.lowlight();
bottomTempControl.sensors.highlight();
drawEverything();
}
void controlTopPID (void) {
state = CONTROLLING_TOP_PID;
topTempControl.setControl.value = & topPID.kp;
conveyorControl.setControl.value = & topPID.ki;
bottomTempControl.setControl.value = & topPID.kd;
topTempControl.setControl.lowlight();
conveyorControl.setControl.lowlight();
bottomTempControl.setControl.lowlight();
topTempControl.sensors.highlight();
conveyorControl.sensors.lowlight();
bottomTempControl.sensors.lowlight();
drawEverything();
}
void controlConveyorPID (void) {
state = CONTROLLING_CONVEYOR_PID;
topTempControl.setControl.value = & conveyorPID.kp;
conveyorControl.setControl.value = & conveyorPID.ki;
bottomTempControl.setControl.value = & conveyorPID.kd;
topTempControl.setControl.lowlight();
conveyorControl.setControl.lowlight();
bottomTempControl.setControl.lowlight();
topTempControl.sensors.lowlight();
conveyorControl.sensors.highlight();
bottomTempControl.sensors.lowlight();
drawEverything();
}
void showTopPIDGraph (void) {
inputGraph = &topPID.input;
setpointGraph = &topPID.setpoint;
outputGraph = &topPID.output;
minInputSetpointGraph = topPID.setpoint - TOP_TEMP_GRAPH_RANGE;
maxInputSetpointGraph = topPID.setpoint + TOP_TEMP_GRAPH_RANGE;
minOutputGraph = topPID.minOutputGraph();
maxOutputGraph = topPID.maxOutputGraph();
state = SHOWING_GRAPH;
drawEverything();
}
void showBottomPIDGraph (void) {
inputGraph = &bottomPID.input;
setpointGraph = &bottomPID.setpoint;
outputGraph = &bottomPID.output;
minInputSetpointGraph = bottomPID.setpoint - BOTTOM_TEMP_GRAPH_RANGE;
maxInputSetpointGraph = bottomPID.setpoint + BOTTOM_TEMP_GRAPH_RANGE;
minOutputGraph = bottomPID.minOutputGraph();
maxOutputGraph = bottomPID.maxOutputGraph();
state = SHOWING_GRAPH;
drawEverything();
}
void showConveyorPIDGraph (void) {
inputGraph = &conveyorPID.input;
setpointGraph = &conveyorPID.setpoint;
outputGraph = &conveyorPID.output;
minInputSetpointGraph = conveyorPID.setpoint - CONVEYOR_GRAPH_RANGE;
maxInputSetpointGraph = conveyorPID.setpoint + CONVEYOR_GRAPH_RANGE;
minOutputGraph = conveyorPID.minOutputGraph();
maxOutputGraph = conveyorPID.maxOutputGraph();
state = SHOWING_GRAPH;
drawEverything();
}
void controlTopOutputLimits (void) {
state = CONTROLLING_TOP_OUTPUT_LIMITS;
topTempControl.setControl.value = & topPID.minOutput;
conveyorControl.setControl.value = & topPID.startOutput;
bottomTempControl.setControl.value = & topPID.maxOutput;
topTempControl.setControl.highlight();
conveyorControl.setControl.lowlight();
bottomTempControl.setControl.lowlight();
topTempControl.sensors.lowlight();
conveyorControl.sensors.lowlight();
bottomTempControl.sensors.lowlight();
drawEverything();
}
void controlConveyorOutputLimits (void) {
state = CONTROLLING_CONVEYOR_OUTPUT_LIMITS;
topTempControl.setControl.value = & conveyorPID.minOutput;
conveyorControl.setControl.value = & conveyorPID.startOutput;