Joseph Dumpleton / Mbed OS WeatherSensor-Joe

SOFT253 Coursework Weather Reader

Dependencies:   LPS25H hts221

Fork of Soft253-WeatherReader by Joseph Dumpleton

main.cpp@6:0cc980145515, 2017-05-02 (annotated)

Committer:
Jdumpleton3
Date:
Tue May 02 11:09:41 2017 +0000
Revision:
6:0cc980145515
Parent:
5:ba160e9778d0 
Finish making the time and fix the ctime padding nonsense

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jdumpleton3 0:b490b8486404 1 #include "mbed.h"
Jdumpleton3 0:b490b8486404 2 #include "rtos.h"
Jdumpleton3 0:b490b8486404 3 #include "hts221.h"
Jdumpleton3 0:b490b8486404 4 #include "LPS25H.h"
Jdumpleton3 1:8585a8d417dc 5 #include "DataGenerator.h"
Jdumpleton3 4:edef041d2094 6 #include <string>
Jdumpleton3 5:ba160e9778d0 7 #include <time.h>
Jdumpleton3 0:b490b8486404 8
Jdumpleton3 2:27b92722246b 9 //Complex.Variables
Jdumpleton3 0:b490b8486404 10 DigitalOut myled(LED1);
Jdumpleton3 0:b490b8486404 11 I2C i2c2(I2C_SDA, I2C_SCL);
Jdumpleton3 2:27b92722246b 12 Ticker dataTimer;
Jdumpleton3 0:b490b8486404 13
Jdumpleton3 2:27b92722246b 14 //Method Headers
Jdumpleton3 2:27b92722246b 15 void readData();
Jdumpleton3 2:27b92722246b 16 void createDataThread();
Jdumpleton3 2:27b92722246b 17 void printData();
jedward 3:d17f07a0d08d 18 void storeNewRecord();
Jdumpleton3 2:27b92722246b 19
Jdumpleton3 2:27b92722246b 20 //Prim.Variables
Jdumpleton3 0:b490b8486404 21 float tempCelsius = 25.50;
Jdumpleton3 0:b490b8486404 22 float humi = 55;
Jdumpleton3 2:27b92722246b 23 float barometerPressure = 0;
Jdumpleton3 2:27b92722246b 24 float barometerTemperature = 0;
Jdumpleton3 4:edef041d2094 25 float dataReadTime = 2.0;
Jdumpleton3 0:b490b8486404 26 int humiMax = 100;
Jdumpleton3 0:b490b8486404 27 char cmd=0;
Jdumpleton3 0:b490b8486404 28 uint32_t seconds = 0, minutes=0, hours=0;
jedward 3:d17f07a0d08d 29 int headNode = 0;
jedward 3:d17f07a0d08d 30 int currentNode = 0;
jedward 3:d17f07a0d08d 31 const int maxNumRecords = 120;
Jdumpleton3 5:ba160e9778d0 32
Jdumpleton3 2:27b92722246b 33 //Can't print data in a ticker method (not interrupt safe)
Jdumpleton3 2:27b92722246b 34 //This is set once we have got new data, so it can be printed safely later
Jdumpleton3 2:27b92722246b 35 bool isNewData=false;
Jdumpleton3 0:b490b8486404 36
Jdumpleton3 2:27b92722246b 37 // Test Data generator setup
Jdumpleton3 1:8585a8d417dc 38 DataGenerator dataGen;
Jdumpleton3 0:b490b8486404 39
jedward 3:d17f07a0d08d 40 struct dataEntry{
jedward 3:d17f07a0d08d 41 float airTemp;
jedward 3:d17f07a0d08d 42 float airPress;
jedward 3:d17f07a0d08d 43 float barTemp;
jedward 3:d17f07a0d08d 44 float barPress;
Jdumpleton3 5:ba160e9778d0 45 time_t dt;
jedward 3:d17f07a0d08d 46 }tempEntry;
jedward 3:d17f07a0d08d 47
jedward 3:d17f07a0d08d 48 dataEntry storedDataArray [maxNumRecords];
jedward 3:d17f07a0d08d 49
Jdumpleton3 1:8585a8d417dc 50 int main(){
Jdumpleton3 1:8585a8d417dc 51 printf("SOFT253 simple Temperature Humidity and Pressure Sensor Monitor\n\r");
Jdumpleton3 1:8585a8d417dc 52 printf("Using the X-NUCLEO-IKS01A1 shield and MBED Libraries\n\r");
Jdumpleton3 1:8585a8d417dc 53
Jdumpleton3 2:27b92722246b 54 dataTimer.attach(&readData, dataReadTime); //Attach timer to data reader.
Jdumpleton3 0:b490b8486404 55
Jdumpleton3 4:edef041d2094 56
Jdumpleton3 1:8585a8d417dc 57 while(1)
Jdumpleton3 0:b490b8486404 58 {
Jdumpleton3 2:27b92722246b 59 if (isNewData == true){
jedward 3:d17f07a0d08d 60 storeNewRecord();
Jdumpleton3 2:27b92722246b 61 printData();
Jdumpleton3 2:27b92722246b 62 }
Jdumpleton3 1:8585a8d417dc 63
Jdumpleton3 4:edef041d2094 64
Jdumpleton3 1:8585a8d417dc 65 /* Flicker the LED. */
Jdumpleton3 0:b490b8486404 66 myled = 1; // LED is ON
Jdumpleton3 0:b490b8486404 67 Thread::wait(200); // 200 ms NB 'Thread::wait(int d);' !!! d is in milliseconds!
Jdumpleton3 0:b490b8486404 68 myled = 0; // LED is OFF
Jdumpleton3 0:b490b8486404 69 Thread::wait(100); // 100 ms
Jdumpleton3 2:27b92722246b 70 }
Jdumpleton3 2:27b92722246b 71 }
Jdumpleton3 2:27b92722246b 72
jedward 3:d17f07a0d08d 73 void storeNewRecord(){
jedward 3:d17f07a0d08d 74
jedward 3:d17f07a0d08d 75 if(headNode>=120){
jedward 3:d17f07a0d08d 76 headNode = 0;
jedward 3:d17f07a0d08d 77 }
jedward 3:d17f07a0d08d 78
Jdumpleton3 5:ba160e9778d0 79 tempEntry.dt = time(0);
Jdumpleton3 4:edef041d2094 80
jedward 3:d17f07a0d08d 81 storedDataArray[headNode] = tempEntry;
jedward 3:d17f07a0d08d 82 currentNode = headNode;
jedward 3:d17f07a0d08d 83 headNode++;
jedward 3:d17f07a0d08d 84 }
jedward 3:d17f07a0d08d 85
Jdumpleton3 2:27b92722246b 86 /* Reads all the data in whenever the ticker interrupt is called */
Jdumpleton3 2:27b92722246b 87 void readData(){
Jdumpleton3 2:27b92722246b 88 //Check if old data has been printed if it hasn't don't do anything
Jdumpleton3 2:27b92722246b 89 //As you have interrupted printdata section.
Jdumpleton3 2:27b92722246b 90 if (isNewData == false){
jedward 3:d17f07a0d08d 91 //Random data CHANGE ME
Jdumpleton3 4:edef041d2094 92
Jdumpleton3 2:27b92722246b 93 dataGen.ReadTempHumi(&tempCelsius, &humi);
Jdumpleton3 2:27b92722246b 94
Jdumpleton3 2:27b92722246b 95 barometerPressure = dataGen.pressure();
Jdumpleton3 2:27b92722246b 96 barometerTemperature = dataGen.temperature();
Jdumpleton3 2:27b92722246b 97
jedward 3:d17f07a0d08d 98 tempEntry.airTemp = tempCelsius;
jedward 3:d17f07a0d08d 99 tempEntry.airPress = humi;
jedward 3:d17f07a0d08d 100 tempEntry.barTemp = barometerTemperature;
Jdumpleton3 4:edef041d2094 101 tempEntry.barPress = barometerPressure;
jedward 3:d17f07a0d08d 102
Jdumpleton3 2:27b92722246b 103 isNewData = true;
Jdumpleton3 2:27b92722246b 104 }
Jdumpleton3 2:27b92722246b 105 }
Jdumpleton3 2:27b92722246b 106 /* Prints the data that was read */
Jdumpleton3 2:27b92722246b 107 void printData(){
Jdumpleton3 6:0cc980145515 108 //Location where string is copied when using strftime
Jdumpleton3 6:0cc980145515 109 char buff[20];
Jdumpleton3 6:0cc980145515 110 strftime(buff, 20, "%Y-%m-%d %H:%M:%S", localtime(&tempEntry.dt));
Jdumpleton3 6:0cc980145515 111 printf("%s \t", buff);
Jdumpleton3 5:ba160e9778d0 112 printf("%i: %4.2fC %3.1f%%", headNode, tempEntry.airTemp, tempEntry.airPress);
jedward 3:d17f07a0d08d 113 printf(" %6.1f %4.1f\r\n", tempEntry.barPress, tempEntry.barTemp);
Jdumpleton3 2:27b92722246b 114 isNewData = false;
Jdumpleton3 5:ba160e9778d0 115 }
Jdumpleton3 0:b490b8486404 116
Jdumpleton3 0:b490b8486404 117
Jdumpleton3 0:b490b8486404 118
Jdumpleton3 2:27b92722246b 119 /* Old Code
Jdumpleton3 2:27b92722246b 120 LPS25H barometer(i2c2, LPS25H_V_CHIP_ADDR);
Jdumpleton3 2:27b92722246b 121 HTS221 humidity(I2C_SDA, I2C_SCL);
Jdumpleton3 0:b490b8486404 122
Jdumpleton3 2:27b92722246b 123 Humidity sensor setup.
Jdumpleton3 2:27b92722246b 124 humidity.init();
Jdumpleton3 2:27b92722246b 125 humidity.calib();
Jdumpleton3 2:27b92722246b 126
Jdumpleton3 2:27b92722246b 127 //printf("%#x\n\r",barometer.read_id());
Jdumpleton3 2:27b92722246b 128
Jdumpleton3 2:27b92722246b 129 barometer.get();
Jdumpleton3 2:27b92722246b 130 printf(" %6.1f %4.1f\r\n", barometer.pressure(), barometer.temperature());
Jdumpleton3 2:27b92722246b 131 humidity.ReadTempHumi(&tempCelsius, &humi);
Jdumpleton3 2:27b92722246b 132 printf("%4.2fC %3.1f%%", tempCelsius, humi);
Jdumpleton3 2:27b92722246b 133 */