chris stevens / Mbed 2 deprecated CCRMonitor12_sp07_120ver

A code to drive a 3sensor reading unit for monitoring the operation opf a closed circuit rebreather (CCR) with 3 electrogalvanic sensors. Also uses a DS1307 for realtime clock and an MPX5700 to read the depth (mounted inside the breathing loop to keep it 'dry'). circuit diagrams available on rebreather world.

Dependencies:   DS1307 TextOLED mbed

Rebmon_main.cpp@0:52d05d950581, 2012-08-01 (annotated)

Committer:
pegcjs
Date:
Wed Aug 01 15:04:18 2012 +0000
Revision:
0:52d05d950581
Child:
1:9cff4feccbce
just started writing

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pegcjs 0:52d05d950581 1 //lpc1124lcddemo
pegcjs 0:52d05d950581 2 #include "ds1307.h"
pegcjs 0:52d05d950581 3 #include "mbed.h"
pegcjs 0:52d05d950581 4 #include "TextLCD.h"
pegcjs 0:52d05d950581 5
pegcjs 0:52d05d950581 6 //pin assignments and declarations
pegcjs 0:52d05d950581 7 // LCD display
pegcjs 0:52d05d950581 8 TextLCD g_lcd(p26, p25, p24, p23, p22, p21); // RS, E, DB4, DB5, DB6, DB7
pegcjs 0:52d05d950581 9
pegcjs 0:52d05d950581 10 //onboard leds
pegcjs 0:52d05d950581 11 DigitalOut led1(LED1);
pegcjs 0:52d05d950581 12 DigitalOut led2(LED2);
pegcjs 0:52d05d950581 13
pegcjs 0:52d05d950581 14 // warning leds
pegcjs 0:52d05d950581 15 DigitalOut red(p34);
pegcjs 0:52d05d950581 16 DigitalOut green(p33);
pegcjs 0:52d05d950581 17 DigitalOut blue(p30);
pegcjs 0:52d05d950581 18
pegcjs 0:52d05d950581 19 // switches and buttons
pegcjs 0:52d05d950581 20 DigitalIn CAL(p36);
pegcjs 0:52d05d950581 21 DigitalIn SW1(p35);
pegcjs 0:52d05d950581 22
pegcjs 0:52d05d950581 23 // log data storage
pegcjs 0:52d05d950581 24 LocalFileSystem local("local");
pegcjs 0:52d05d950581 25
pegcjs 0:52d05d950581 26 // adc inputs for sensors
pegcjs 0:52d05d950581 27 AnalogIn depin(p20);
pegcjs 0:52d05d950581 28 AnalogIn EG1(p19);
pegcjs 0:52d05d950581 29 AnalogIn EG2(p18);
pegcjs 0:52d05d950581 30 AnalogIn Vbatt(p17);
pegcjs 0:52d05d950581 31
pegcjs 0:52d05d950581 32 // realtime clock
pegcjs 0:52d05d950581 33 DS1307 my1307(p28,p27); // start DS1307 class and give it pins for connections of the DS1307 device
pegcjs 0:52d05d950581 34
pegcjs 0:52d05d950581 35 // variables for realtime clock
pegcjs 0:52d05d950581 36 int sec = 0;
pegcjs 0:52d05d950581 37 int min = 0;
pegcjs 0:52d05d950581 38 int hours = 0;
pegcjs 0:52d05d950581 39 int day = 0;
pegcjs 0:52d05d950581 40 int date = 0;
pegcjs 0:52d05d950581 41 int month = 0;
pegcjs 0:52d05d950581 42 int year = 0;
pegcjs 0:52d05d950581 43
pegcjs 0:52d05d950581 44
pegcjs 0:52d05d950581 45 int main() {
pegcjs 0:52d05d950581 46 // get time to log a startup time
pegcjs 0:52d05d950581 47 my1307.gettime( &sec, &min, &hours, &day, &date, &month, &year);
pegcjs 0:52d05d950581 48 int starttime=year*365*24*60*60+month*30*24*60*60+day*24*60*60+hours*60*60+min*60+sec; //simple timestamp = # seconds since midnight jan 1st 2000 if all months were 30 days.
pegcjs 0:52d05d950581 49
pegcjs 0:52d05d950581 50
pegcjs 0:52d05d950581 51 int seconds;
pegcjs 0:52d05d950581 52 float depth;
pegcjs 0:52d05d950581 53
pegcjs 0:52d05d950581 54 // setup local file to store data in
pegcjs 0:52d05d950581 55 FILE *fp = fopen("/local/out.txt", "a"); // Open "out.txt" on the local file system for writing
pegcjs 0:52d05d950581 56
pegcjs 0:52d05d950581 57
pegcjs 0:52d05d950581 58
pegcjs 0:52d05d950581 59
pegcjs 0:52d05d950581 60 g_lcd.cls();
pegcjs 0:52d05d950581 61
pegcjs 0:52d05d950581 62 g_lcd.locate(0, 0);
pegcjs 0:52d05d950581 63 g_lcd.printf( "Hello world!");
pegcjs 0:52d05d950581 64
pegcjs 0:52d05d950581 65 while (1) {
pegcjs 0:52d05d950581 66 g_lcd.locate(0, 1);
pegcjs 0:52d05d950581 67 my1307.gettime( &sec, &min, &hours, &day, &date, &month, &year);
pegcjs 0:52d05d950581 68 seconds=day*24*60*60+hours*60*60+min*60+sec; // seconds since the start of this month....
pegcjs 0:52d05d950581 69
pegcjs 0:52d05d950581 70 if (led1==0) led1=1;
pegcjs 0:52d05d950581 71 else led1=0;
pegcjs 0:52d05d950581 72 g_lcd.printf( "%.2d:%.2d:%.2d", hours,min,sec);
pegcjs 0:52d05d950581 73
pegcjs 0:52d05d950581 74 iCounter++;
pegcjs 0:52d05d950581 75 depth=depin/0.020;
pegcjs 0:52d05d950581 76 if (iCounter <=60) {
pegcjs 0:52d05d950581 77 fprintf(fp, "%d\t%e\n",seconds,depth);
pegcjs 0:52d05d950581 78 g_lcd.locate(0,0);
pegcjs 0:52d05d950581 79 g_lcd.printf("Writing data ");
pegcjs 0:52d05d950581 80 } else {
pegcjs 0:52d05d950581 81 g_lcd.locate(0,0);
pegcjs 0:52d05d950581 82 g_lcd.printf("Closed file ");
pegcjs 0:52d05d950581 83 }
pegcjs 0:52d05d950581 84 if (iCounter==61) {
pegcjs 0:52d05d950581 85 fclose(fp);
pegcjs 0:52d05d950581 86 }
pegcjs 0:52d05d950581 87 g_lcd.locate(9,1);
pegcjs 0:52d05d950581 88 g_lcd.printf("%3.1f",depth);
pegcjs 0:52d05d950581 89 wait(1.0);
pegcjs 0:52d05d950581 90 }
pegcjs 0:52d05d950581 91 }