Nicholas Outram / Mbed OS ELEC350-CWTEMPLATE

Coursework template

Dependencies:   BMP280 TextLCD BME280

main.cpp@0:57d39f966513, 2018-11-24 (annotated)

Committer:
noutram
Date:
Sat Nov 24 09:35:51 2018 +0000
Revision:
0:57d39f966513
updated for 2018;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
noutram 0:57d39f966513 1 #include "sample_hardware.hpp"
noutram 0:57d39f966513 2 #include "Networkbits.hpp"
noutram 0:57d39f966513 3
noutram 0:57d39f966513 4 // This is a very short demo that demonstrates all the hardware used in the coursework.
noutram 0:57d39f966513 5 // You will need a network connection set up (covered elsewhere). The host PC should have the address 10.0.0.1
noutram 0:57d39f966513 6
noutram 0:57d39f966513 7 //Threads
noutram 0:57d39f966513 8 Thread nwrkThread;
noutram 0:57d39f966513 9
noutram 0:57d39f966513 10
noutram 0:57d39f966513 11 int main() {
noutram 0:57d39f966513 12 //Greeting
noutram 0:57d39f966513 13 printf("Testing\n\n");
noutram 0:57d39f966513 14
noutram 0:57d39f966513 15 //Power on self test
noutram 0:57d39f966513 16 post();
noutram 0:57d39f966513 17
noutram 0:57d39f966513 18 //Initialise the SD card (this needs to move)
noutram 0:57d39f966513 19 if ( sd.init() != 0) {
noutram 0:57d39f966513 20 printf("Init failed \n");
noutram 0:57d39f966513 21 lcd.cls();
noutram 0:57d39f966513 22 lcd.printf("CANNOT INIT SD");
noutram 0:57d39f966513 23 errorCode(FATAL);
noutram 0:57d39f966513 24 }
noutram 0:57d39f966513 25
noutram 0:57d39f966513 26 //Create a filing system for SD Card
noutram 0:57d39f966513 27 FATFileSystem fs("sd", &sd);
noutram 0:57d39f966513 28
noutram 0:57d39f966513 29 //Open to WRITE
noutram 0:57d39f966513 30 FILE* fp = fopen("/sd/test.csv","a");
noutram 0:57d39f966513 31 if (fp == NULL) {
noutram 0:57d39f966513 32 error("Could not open file for write\n");
noutram 0:57d39f966513 33 lcd.cls();
noutram 0:57d39f966513 34 lcd.printf("CANNOT OPEN FILE\n\n");
noutram 0:57d39f966513 35 errorCode(FATAL);
noutram 0:57d39f966513 36 }
noutram 0:57d39f966513 37
noutram 0:57d39f966513 38 //Last message before sampling begins
noutram 0:57d39f966513 39 lcd.cls();
noutram 0:57d39f966513 40 lcd.printf("READY\n\n");
noutram 0:57d39f966513 41
noutram 0:57d39f966513 42
noutram 0:57d39f966513 43 //Press either switch to unmount
noutram 0:57d39f966513 44 while ((SW1 == 0) && (SW2 == 0)) {
noutram 0:57d39f966513 45
noutram 0:57d39f966513 46 //Base loop delay
noutram 0:57d39f966513 47 wait(1.0);
noutram 0:57d39f966513 48
noutram 0:57d39f966513 49 //Read environmental sensors
noutram 0:57d39f966513 50 double temp = sensor.getTemperature();
noutram 0:57d39f966513 51 double pressure = sensor.getPressure();
noutram 0:57d39f966513 52
noutram 0:57d39f966513 53 //Write new data to LCD (not fast!)
noutram 0:57d39f966513 54 lcd.cls();
noutram 0:57d39f966513 55 lcd.printf("Temp Pressure\n");
noutram 0:57d39f966513 56 lcd.printf("%6.1f ",temp);
noutram 0:57d39f966513 57 lcd.printf("%.2f\n",pressure);
noutram 0:57d39f966513 58
noutram 0:57d39f966513 59 //Write to SD (potentially slow)
noutram 0:57d39f966513 60 fprintf(fp, "%6.1f,%.2f\n\r", temp, pressure);
noutram 0:57d39f966513 61 }
noutram 0:57d39f966513 62
noutram 0:57d39f966513 63 //Close File
noutram 0:57d39f966513 64 fclose(fp);
noutram 0:57d39f966513 65
noutram 0:57d39f966513 66 //Close down
noutram 0:57d39f966513 67 sd.deinit();
noutram 0:57d39f966513 68 printf("Unmounted...\n");
noutram 0:57d39f966513 69 lcd.cls();
noutram 0:57d39f966513 70 lcd.printf("Unmounted...\n\n");
noutram 0:57d39f966513 71
noutram 0:57d39f966513 72 //Flash to indicate goodness
noutram 0:57d39f966513 73 while(true) {
noutram 0:57d39f966513 74 greenLED = 1;
noutram 0:57d39f966513 75 wait(0.5);
noutram 0:57d39f966513 76 greenLED = 0;
noutram 0:57d39f966513 77 wait(0.1);
noutram 0:57d39f966513 78 }
noutram 0:57d39f966513 79 }
noutram 0:57d39f966513 80
noutram 0:57d39f966513 81
noutram 0:57d39f966513 82