diff options
| -rw-r--r-- | Sprinter/Configuration.h | 6 | ||||
| -rw-r--r-- | Sprinter/Sprinter.pde | 34 |
2 files changed, 40 insertions, 0 deletions
diff --git a/Sprinter/Configuration.h b/Sprinter/Configuration.h index 3f2dda2..a3a5d59 100644 --- a/Sprinter/Configuration.h +++ b/Sprinter/Configuration.h @@ -179,6 +179,12 @@ char uuid[] = "00000000-0000-0000-0000-000000000000"; #define BED_USES_THERMISTOR //#define BED_USES_AD595 +//This is for controlling a fan to cool down the stepper drivers +//it will turn on when any driver is enabled +//and turn off after the set amount of seconds from last driver being disabled again +//#define CONTROLLERFAN_PIN 23 //Pin used for the fan to cool controller, comment out to disable this function +#define CONTROLLERFAN_SEC 60 //How many seconds, after all motors were disabled, the fan should run + // Uncomment the following line to enable debugging. You can better control debugging below the following line //#define DEBUG #ifdef DEBUG diff --git a/Sprinter/Sprinter.pde b/Sprinter/Sprinter.pde index 52910ec..7a6bf5e 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(!READ(X_ENABLE_PIN) || !READ(Y_ENABLE_PIN) || !READ(Z_ENABLE_PIN) || !READ(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*1000UL) || lastMotor == 0) //If the last time any driver was enabled, is longer since than CONTROLLERSEC... + { + WRITE(CONTROLLERFAN_PIN, LOW); //... turn the fan off + } + else + { + WRITE(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) |