summaryrefslogtreecommitdiff
path: root/Sprinter
diff options
context:
space:
mode:
authorblddk <michael.andresen@gmail.com>2011-10-16 15:55:42 +0300
committerblddk <michael.andresen@gmail.com>2011-10-16 15:55:42 +0300
commit7eef2733856dac97dd46f19160cf6fb2eedd198b (patch)
tree37a570eb6de938d6e1db3bf26632b05ff5209549 /Sprinter
parent01789743f693c6fb3578c2fc2204b7c5dfb2bf4c (diff)
Added function for controlling controller cooling fan
Diffstat (limited to 'Sprinter')
-rw-r--r--Sprinter/Sprinter.pde34
1 files changed, 34 insertions, 0 deletions
diff --git a/Sprinter/Sprinter.pde b/Sprinter/Sprinter.pde
index 52910ec..8124f00 100644
--- a/Sprinter/Sprinter.pde
+++ b/Sprinter/Sprinter.pde
@@ -245,6 +245,10 @@ void setup()
if(!E_ENABLE_ON) WRITE(E_ENABLE_PIN,HIGH);
#endif
+ #ifdef CONTROLLERFAN_PIN
+ SET_OUTPUT(CONTROLLERFAN_PIN); //Set pin used for driver cooling fan
+ #endif
+
//endstops and pullups
#ifdef ENDSTOPPULLUPS
#if X_MIN_PIN > -1
@@ -1441,6 +1445,32 @@ int read_max6675()
}
#endif
+#ifdef CONTROLLERFAN_PIN
+unsigned long lastMotor = 0; //Save the time for when a motor was turned on last
+unsigned long lastMotorCheck = 0;
+
+void controllerFan()
+{
+ if ((millis() - lastMotorCheck) >= 2500) //Not a time critical function, so we only check every 2500ms
+ {
+ lastMotorCheck = millis();
+
+ if(!digitalRead(X_ENABLE_PIN) || !digitalRead(Y_ENABLE_PIN) || !digitalRead(Z_ENABLE_PIN) || !digitalRead(E_ENABLE_PIN)) //If any of the drivers are enabled...
+ {
+ lastMotor = millis(); //... set time to NOW so the fan will turn on
+ }
+
+ if ((millis() - lastMotor) >= (CONTROLLERFAN_SEC*1000) || lastMotor == 0) //If the last time any driver was enabled, is longer since than CONTROLLERSEC...
+ {
+ digitalWrite(CONTROLLERFAN_PIN, LOW); //... turn the fan off
+ }
+ else
+ {
+ digitalWrite(CONTROLLERFAN_PIN, HIGH); //... turn the fan on
+ }
+ }
+}
+#endif
void manage_heater()
{
@@ -1579,6 +1609,10 @@ void manage_heater()
WRITE(HEATER_1_PIN,HIGH);
}
#endif
+
+#ifdef CONTROLLERFAN_PIN
+ controllerFan(); //Check if fan should be turned on to cool stepper drivers down
+#endif
}
#if defined (HEATER_USES_THERMISTOR) || defined (BED_USES_THERMISTOR)