Brennan McClure
First draft to the functional spec
Dependencies: mbed Grove_LCD_RGB_Backlight DebounceIn
Diff: main.cpp
- Revision:
- 2:829038a1352b
- Parent:
- 1:ca7bf48a2f71
- Child:
- 3:07d400d50a96
--- a/main.cpp Tue Oct 08 16:24:32 2019 +0000
+++ b/main.cpp Tue Oct 08 21:15:26 2019 +0000
@@ -2,6 +2,7 @@
#include "mbed.h"
#include "DebounceIn.h"
+#define FOREVER (1)
#define OUT_OFF (0)
#define OUT_ON (1)
@@ -20,9 +21,9 @@
//output
DigitalOut doorInterlock(p6); //Door interlock
DigitalOut fanRelay(p7); //Fan control
-DigitalOut redRelay(p8); //Red light
-DigitalOut yellowRelay(p11); //Yellow light
-DigitalOut greenRelay(p12); //Green light
+DigitalOut redRelay(p8); //Red light - DOOR OPENED
+DigitalOut yellowRelay(p11); //Yellow light - WASH IN PROGRESS
+DigitalOut greenRelay(p12); //Green light - DOOR UNLOCKED, TANK READY
DigitalOut damperRelay(p13); //Damper solenoid control
DigitalOut damperRelayAlt(p16); //Damper solenoid toggle control
DigitalOut vfd(p17); //VFD Start relay
@@ -32,6 +33,8 @@
bool cancelPending = false;
bool damperIsOpen;
bool simulateMode = false;
+bool doorHasOpened = false;
+bool cycleHasStarted = false;
I2C i2c(p9, p10);
//Serial pc(USBTX, USBRX);
@@ -87,69 +90,108 @@
rgbLCD.locate(0,0);
rgbLCD.print("Starting up... ");
+ // Setup outputs
vfd = OUT_OFF;
- damperIsOpen = false; // Assert and run the opener once
- damperRotate(1); //vent opened;
- if(!simulateMode)
- {
- //doorInterlock = OUT_ON;
- fanRelay = OUT_ON;
- }
+ doorInterlock = OUT_OFF;
greenRelay = OUT_OFF;
yellowRelay = OUT_OFF;
redRelay = OUT_OFF;
- //start timer for 90sec
- countDown(90);
+ // Door locked, damper open and fan on - we're assuming it's been sitting for a while
+ // and someone is about to open the door. Make them close the if open
+ // so we can get venting.
+ // Run the damper open twice to get to a known-good position of full-open
+ damperIsOpen = false; //Assert and run the opener once
+ damperRotate(1); //vent may be opened;
+ damperIsOpen = false; //Assert and run the opener a second time
+ damperRotate(1); //vent opened;
- /*
- //check for closed door before running fan
- while(doorClosed!=IN_ON)
+ // Start the fan whether or not the door is open
+ if(!simulateMode)
+ {
+ fanRelay = OUT_ON;
+ }
+ else
{
- rgbLCD.clear();
- rgbLCD.locate(0,0);
- rgbLCD.print("Door is opened ");
- wait(.25);
+ fanRelay = OUT_OFF;
}
- */
-
+
+ // Wait for the door to close
+ if(doorClosed == IN_OFF)
+ {
+ redRelay = OUT_ON;
+ rgbLCD.locate(0,0);
+ rgbLCD.print("Close the door ");
+
+ while(doorClosed == IN_OFF)
+ {
+ wait(1);
+ }
+ }
+ rgbLCD.locate(0,0);
+ rgbLCD.print("Venting ");
+ doorInterlock = OUT_ON;
+ redRelay = OUT_OFF;
+ yellowRelay = OUT_ON;
+
+ //wait 90sec
+ countDown(90);
+
+ // We turn off the fan because we don't know how long until someone is ready to open the door
//Tank is ready
rgbLCD.locate(0,0);
rgbLCD.print("Tank is ready! ");
+ yellowRelay = OUT_OFF;
greenRelay = OUT_ON; //green light on
doorInterlock = OUT_OFF; //interlock unlatched, ready to load material into the tank
- fanRelay = OUT_OFF; //fan off
+ fanRelay = OUT_OFF;
+ damperRotate(0); // damper is closed
cancelPending = false;
- while(1)
+ while(FOREVER)
{
if(cancelPending)
{
cancelPending = false;
//Display status
+ vfd = OUT_OFF; //pump off
greenRelay = OUT_OFF; //green light OFF
yellowRelay = OUT_OFF; //yellow light OFF
redRelay = OUT_ON; //turn red light ON
rgbLCD.clear();
rgbLCD.locate(0,0);
rgbLCD.print("CYCLE STOPPED. ");
- vfd = OUT_OFF; //pump off
- if(doorClosed == IN_ON && !simulateMode)
+
+ if(doorClosed == IN_ON && !simulateMode)
{
doorInterlock = OUT_ON; //door latched
+ fanRelay = OUT_ON; //fan on
damperRotate(1); //damper opened
- fanRelay = OUT_ON; //fan on
+ //wait 60s, including the 30s damper rotation
+ countDown(30);
+ fanRelay = OUT_OFF; //fan stops
+ damperRotate(0); //damper closed
+ }
+ else if(doorClosed == IN_OFF)
+ {
+ for(int i=0; i<3; i++)
+ {
+ wait(.5);
+ redRelay = OUT_OFF;
+ wait(.5);
+ redRelay = OUT_ON;
+ }
}
- //wait 60sec
- countDown(60);
+ wait(0.5);
+ redRelay = OUT_OFF;
+ greenRelay = OUT_ON;
doorInterlock=OUT_OFF; //door unlatched
- damperRotate(0); //damper closed
- fanRelay = OUT_OFF; //fan stops
rgbLCD.locate(0,0);
rgbLCD.print("Tank is ready! ");
+ doorHasOpened = false;
}
if(doorClosed==IN_ON) //door closed
@@ -157,19 +199,21 @@
/*
* Get set up for the wash, and wait for the start button
*/
- rgbLCD.locate(0,1);
- rgbLCD.print("Door closed ");
greenRelay = OUT_ON; //green light stays on
yellowRelay = OUT_OFF; //yellow light off
redRelay = OUT_OFF; //red light off
doorInterlock = OUT_OFF; //door unlocked
- fanRelay = OUT_OFF;
+ fanRelay = OUT_OFF;
+ damperRotate(0); //damper closed
+ rgbLCD.locate(0,1);
+ rgbLCD.print("Door closed ");
+
while(cycleStartBtt != IN_ON && !(doorClosed == IN_OFF || cancelPending))
{
if(stopBtt == IN_ON)
{
cancelPending = true;
- continue;
+ break;
}
wait(.25);
}
@@ -182,19 +226,18 @@
/*
* Cycle start button pressed - wash for 2 minutes
*/
+ cycleHasStarted = true;
rgbLCD.clear();
rgbLCD.locate(0,0);
rgbLCD.print("CYCLE STARTED! ");
greenRelay = OUT_OFF; //green light off
- yellowRelay = OUT_ON; //yellow light on
- fanRelay = OUT_OFF; //fan stop
- //damperRotate(0); //vent already close
-
+ yellowRelay = OUT_ON; //yellow light on
if(!simulateMode)
{
doorInterlock = OUT_ON; //door locked
vfd = OUT_ON; //vfd for pump up to speed
}
+ doorHasOpened = false;
countDown(120); //start timer for 2min
if(doorClosed == IN_OFF || cancelPending)
{
@@ -217,57 +260,45 @@
/*
- * Drip dry after washing for 5 minutes
+ * Drip dry and vent after washing for 5 minutes
*/
rgbLCD.clear();
rgbLCD.locate(0,0);
- rgbLCD.print("DRIP DRYING! ");
- countDown(300);
+ rgbLCD.print("DRIP DRYING! ");
+ if(!simulateMode)
+ {
+ fanRelay = OUT_ON; //fan on
+ }
+ damperRotate(1); //vent opened
+ countDown(270); // 5 minutes, including the damper opening
if(doorClosed == IN_OFF || cancelPending)
{
continue;
- }
-
-
- /*
- * Change the air out for 2 minutes
- */
- rgbLCD.clear();
- rgbLCD.locate(0,0);
- rgbLCD.print("AIR CYCLING! ");
- damperRotate(1); //vent opened
- if(!simulateMode)
- {
- fanRelay = OUT_ON; //fan on
- }
- countDown(120);
- if(doorClosed == IN_OFF || cancelPending)
- {
- continue;
- }
+ }
/*
* Entire cycle is done, close up and go back to waiting
*/
- greenRelay = OUT_ON; //green light on
- yellowRelay = OUT_OFF; //yellow light off
- doorInterlock = OUT_OFF; //door unlocked
fanRelay = OUT_OFF; //fan off
- damperRotate(0); //vent closed
+ damperRotate(0); //vent closed
rgbLCD.clear();
rgbLCD.locate(0,0);
rgbLCD.print("Tank is ready! ");
+ doorInterlock = OUT_OFF; //door unlocked
+ greenRelay = OUT_ON; //green light on
+ yellowRelay = OUT_OFF; //yellow light off
}
else //door open
{
+ greenRelay = OUT_OFF; //green light OFF
+ yellowRelay = OUT_OFF;
+ redRelay = OUT_ON; //turn red light ON
+ fanRelay = OUT_ON; //fan on
+ damperRotate(1); //damper opened
rgbLCD.locate(0,1);
rgbLCD.print("Door open ");
- greenRelay = OUT_OFF; //green light OFF
- redRelay = OUT_ON; //turn red light ON
- yellowRelay = OUT_OFF;
- damperRotate(1); //damper opened
- fanRelay = OUT_ON; //fan on
+ doorHasOpened = true;
}
wait(1);
@@ -351,10 +382,13 @@
char displayLine1[17];
char displayLine2[17];
unsigned int count = 0;
+ bool stopReleased = false;
+ damperRelay = OUT_OFF; //Damper solenoid control
+ damperRelayAlt = OUT_OFF; //Damper solenoid toggle control
+ vfd = OUT_OFF; //VFD Start relay
rgbLCD.clear();
rgbLCD.locate(0,0);
- //damperRotate(1);
do
{
@@ -372,15 +406,15 @@
if(cycleStartBtt == 1)
{
strcat(displayLine1, "1 ");
- if(stopBtt == 0)
- {
- fanRelay = OUT_OFF;
- }
+ fanRelay = OUT_OFF;
}
- else
+ else // start pressed
{
strcat(displayLine1, "0 ");
- fanRelay = OUT_ON;
+ if(stopBtt == IN_OFF && doorClosed == IN_OFF)
+ {
+ fanRelay = OUT_ON;
+ }
}
@@ -392,60 +426,54 @@
else
{
strcat(displayLine2, "0 ");
+ stopReleased = true;
}
// Every 2s, change the outputs
- if((count&7) == 0)
+ if((count&7) == 0) // only do it 1 time out of 8
{
doorInterlock = OUT_OFF; //Door interlock
- //fanRelay = OUT_ON; //Fan control
redRelay = OUT_OFF; //Red light
yellowRelay = OUT_OFF; //Yellow light
greenRelay = OUT_OFF; //Green light
- damperRelay = OUT_OFF; //Damper solenoid control
- damperRelayAlt = OUT_OFF; //Damper solenoid toggle control
- vfd = OUT_OFF; //VFD Start relay
- switch((count>>3)%8)
+ switch((count>>3)%4) // ignore the bottom 3 bits, and then roll over when you've counted to 4
{
case 0:
doorInterlock = OUT_ON; //Door interlock
strcat(displayLine2, " Lock ");
break;
case 1:
- //fanRelay = OUT_ON; //Fan control
- //strcat(displayLine2, " Fan ");
- break;
- case 2:
redRelay = OUT_ON; //Red light
strcat(displayLine2, " Red ");
break;
- case 3:
+ case 2:
yellowRelay = OUT_ON; //Yellow light
strcat(displayLine2, " Yellow ");
break;
- case 4:
+ case 3:
greenRelay = OUT_ON; //Green light
strcat(displayLine2, " Green ");
break;
- case 5:
- //damperRelayAlt = OUT_ON; //Damper solenoid toggle control - closed
- //strcat(displayLine2, " Damper1");
- //wait(30);
- break;
- case 6:
- //damperRelay = OUT_ON; //Damper solenoid control - open
- //strcat(displayLine2, " Damper2");
- //wait(30);
- break;
- case 7:
- //vfd = OUT_ON; //VFD Start relay
- //strcat(displayLine2, " VFD ");
- break;
}
}
+ // Adjust the damper with start/stop if the door is closed
+ if(cycleStartBtt == IN_ON && stopBtt == IN_OFF && stopReleased == true && doorClosed == IN_ON)
+ {
+ damperRelay = OUT_ON;
+ }
+ else if(stopBtt == IN_ON && cycleStartBtt == IN_OFF && stopReleased == true && doorClosed == IN_ON)
+ {
+ damperRelayAlt = OUT_ON;
+ }
+ else
+ {
+ damperRelay = OUT_OFF;
+ damperRelayAlt = OUT_OFF;
+ }
+
rgbLCD.locate(0,0);
rgbLCD.print(displayLine1);
rgbLCD.locate(0,1);