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#define NUMTEMPS 32
short temptable[NUMTEMPS][2] = {
{210, -10},
{224, 0},
{238, 10},
{252, 20},
{266, 30},
{281, 40},
{296, 50},
{310, 60},
{325, 70},
{339, 80},
{354, 90},
{368, 100},
{383, 110},
{397, 120},
{411, 130},
{425, 140},
{439, 150},
{452, 160},
{465, 170},
{478, 180},
{491, 190},
{503, 200},
{516, 210},
{528, 220},
{539, 230},
{551, 240},
{562, 250},
{573, 260},
{583, 270},
{593, 280},
{602, 290},
{610, 300},
};
int dir_pin_a = 8;
int speed_pin_a = 9;
int calculateTemperatureFromRaw(int raw)
{
int celsius = 0;
byte i;
for (i=1; i<NUMTEMPS; i++)
{
if (temptable[i][0] > raw)
{
celsius = temptable[i-1][1] +
(raw - temptable[i-1][0]) *
(temptable[i][1] - temptable[i-1][1]) /
(temptable[i][0] - temptable[i-1][0]);
if (celsius > 255)
celsius = 255;
break;
}
}
// Overflow: We just clamp to 0 degrees celsius
if (i == NUMTEMPS)
celsius = 0;
return celsius;
}
void setup()
{
pinMode(dir_pin_a, OUTPUT);
pinMode(speed_pin_a, OUTPUT);
digitalWrite(dir_pin_a, HIGH);
// setting up tempsensor
pinMode(14, OUTPUT);
digitalWrite(14, HIGH);
pinMode(16, OUTPUT);
digitalWrite(16, LOW);
Serial.begin(9600);
Serial.println("Extruder Tester ready to extrude!"
);
}
int cnt = 0;
int dcSpeed = 150;
void loop()
{
cnt++;
if (cnt % 200 == 0) {
int val = analogRead(1);
int celsius = calculateTemperatureFromRaw(val);
Serial.println(celsius);
if (celsius > 150)
Serial.println("ALERT");
}
int val = Serial.read();
if (val == 'b')
{
Serial.println("Motor BACKWARD");
digitalWrite(dir_pin_a, LOW);
}
if (val == 'f')
{
Serial.println("Motor FORWARD");
digitalWrite(dir_pin_a, HIGH);
}
if (val == '+')
{
dcSpeed+=10;
Serial.print("speed: ");
Serial.println(dcSpeed);
}
if (val == '-')
{
dcSpeed-=10;
Serial.print("speed: ");
Serial.println(dcSpeed);
}
if (val == 'm')
{
Serial.print("speed: ");
Serial.println(dcSpeed);
Serial.println("2 sec");
analogWrite(speed_pin_a, dcSpeed);
delay(1000);
analogWrite(speed_pin_a, 0);
}
if (val == 'x')
{
Serial.print("speed: ");
Serial.println(dcSpeed);
Serial.println("Motor ON");
analogWrite(speed_pin_a, dcSpeed);
}
if (val == ' ')
{
Serial.println("Motor OFF");
analogWrite(speed_pin_a, 0);
}
delay(3);
}
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