Revision 0:edb9a7b809a2, committed 2020-08-18

Comitter:

bmol

Date:

Tue Aug 18 13:12:15 2020 +0000

Commit message:

IT Tralee

Changed in this revision

diff -r 000000000000 -r edb9a7b809a2 C12832.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/C12832.lib	Tue Aug 18 13:12:15 2020 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/chris/code/C12832/#7de323fa46fe

diff -r 000000000000 -r edb9a7b809a2 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Aug 18 13:12:15 2020 +0000
@@ -0,0 +1,88 @@
+#include "mbed.h"
+#include "C12832.h"
+
+C12832 lcd(p5, p7, p6, p8, p11);//Lcd and connections
+
+InterruptIn joystickcenter(p14);//Pushbutton on center of joystick
+Timer debounce; // define debounce timer
+
+AnalogIn pot1(p19); // Pot 1-Program setpoint.Tank level setpoint
+AnalogIn pot2(p20); // Pot 2-Program variable.Simulate output flow from tank. Process variable (PV)
+
+DigitalOut led(LED1);
+DigitalOut led4(LED4);
+
+PwmOut red(p23); //RGB LED with 3 PWM outputs for dimmer control
+PwmOut green(p24);//Green Led- Status OK
+PwmOut blue(p25);//Red Led- Alarm Condition
+PwmOut speaker(p26); //Onboard Speaker- Audible alarm
+
+Serial pc(USBTX,USBRX); // Printf to PC over USB
+
+void flip()
+{
+
+    if (debounce.read_ms()>200) { // only allow toggle if debounce timer has passed 200ms
+        led4 =!led4;// Invert Led4
+        debounce.reset(); // restart timer when
+        wait(0.5);//pause before moving on in program
+    }
+
+}
+
+int main ()
+    {
+    float  pv ;
+    float  setpoint;
+
+    joystickcenter.rise(&flip); // attach the function address to the rising edge
+
+    speaker.period(1.0/1000.0); // 1000hz period
+    red=1.0; //RGB LED off - PWM 100% duty cycle
+    green=1.0;
+    blue=1.0;//Not used in project
+
+
+    while (1) {//continuous loop
+
+        lcd.cls();//clears LCD
+        lcd.locate(0,0); // Lcd coordinates
+        pv = pot2;//read simulated output flow
+        pv = 100.0 * pot2; // Tank level simulated value in %
+        lcd.printf("Tank Level = %.1f\n\r",pv);
+        setpoint = pot1;// Level simulated setpoint
+        setpoint = 100.0 * pot1; // Tank level setpoint in %
+        lcd.printf("Setpoint = %.1f\n\r",setpoint);
+        debounce.start();//Start of the debounce timer
+        
+        //Serial interface
+        pc.printf("Tank Level = %.1f\n\r",pv); //send tank level to PC
+        pc.printf("          Level setpoint = %.1f\n\r",setpoint); //send setpoint to PC with spacing for clarity
+        wait(0.5);//pause before moving on in program
+
+        if(pv <= setpoint) { // Determines action of inputs pot1 and pot2
+            red = 1.0 - pot2; //RGB LED red
+            green = 1.0;
+            led=1.0;
+            speaker = 0.5; //alarm tone using Pwm
+            pc.printf(" Alarm!! Tank Level Low....Top-up valve open\n"); //send setpoint to PC
+            wait(0.5);
+
+        } else {
+            green = 1.0 - pot2; //RGB LED green
+            red = 1.0;
+            led=0.0;
+            speaker = 0.0;
+            wait(0.5);
+        }
+        if (led4) {
+            pc.printf("................. Outlet valve open\n\r");
+            wait(0.5);
+        } else {
+            pc.printf("**\n\r");// No alarm
+            wait(0.5);
+     }
+
+  }
+
+}

diff -r 000000000000 -r edb9a7b809a2 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue Aug 18 13:12:15 2020 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file