Joseph Dumpleton / Mbed OS WeatherSensor-Joe

SOFT253 Coursework Weather Reader

Dependencies:   LPS25H hts221

Fork of Soft253-WeatherReader by Joseph Dumpleton

main.cpp@3:d17f07a0d08d, 2017-04-28 (annotated)

Committer:
jedward
Date:
Fri Apr 28 12:03:17 2017 +0000
Revision:
3:d17f07a0d08d
Parent:
2:27b92722246b
Child:
4:edef041d2094
Implement FIFO buffer

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 0:b490b8486404 6
Jdumpleton3 2:27b92722246b 7 //Complex.Variables
Jdumpleton3 0:b490b8486404 8 DigitalOut myled(LED1);
Jdumpleton3 0:b490b8486404 9 I2C i2c2(I2C_SDA, I2C_SCL);
Jdumpleton3 2:27b92722246b 10 Ticker dataTimer;
Jdumpleton3 0:b490b8486404 11
Jdumpleton3 2:27b92722246b 12 //Method Headers
Jdumpleton3 2:27b92722246b 13 void readData();
Jdumpleton3 2:27b92722246b 14 void createDataThread();
Jdumpleton3 2:27b92722246b 15 void printData();
jedward 3:d17f07a0d08d 16 void storeNewRecord();
Jdumpleton3 2:27b92722246b 17
Jdumpleton3 2:27b92722246b 18 //Prim.Variables
Jdumpleton3 0:b490b8486404 19 float tempCelsius = 25.50;
Jdumpleton3 0:b490b8486404 20 float humi = 55;
Jdumpleton3 2:27b92722246b 21 float barometerPressure = 0;
Jdumpleton3 2:27b92722246b 22 float barometerTemperature = 0;
jedward 3:d17f07a0d08d 23 float dataReadTime = 0.5;
Jdumpleton3 0:b490b8486404 24 int humiMax = 100;
Jdumpleton3 0:b490b8486404 25 char cmd=0;
Jdumpleton3 0:b490b8486404 26 uint32_t seconds = 0, minutes=0, hours=0;
jedward 3:d17f07a0d08d 27 int headNode = 0;
jedward 3:d17f07a0d08d 28 int currentNode = 0;
jedward 3:d17f07a0d08d 29 const int maxNumRecords = 120;
Jdumpleton3 0:b490b8486404 30
Jdumpleton3 2:27b92722246b 31 //Can't print data in a ticker method (not interrupt safe)
Jdumpleton3 2:27b92722246b 32 //This is set once we have got new data, so it can be printed safely later
Jdumpleton3 2:27b92722246b 33 bool isNewData=false;
Jdumpleton3 0:b490b8486404 34
Jdumpleton3 2:27b92722246b 35 // Test Data generator setup
Jdumpleton3 1:8585a8d417dc 36 DataGenerator dataGen;
Jdumpleton3 0:b490b8486404 37
jedward 3:d17f07a0d08d 38 struct dataEntry{
jedward 3:d17f07a0d08d 39 float airTemp;
jedward 3:d17f07a0d08d 40 float airPress;
jedward 3:d17f07a0d08d 41 float barTemp;
jedward 3:d17f07a0d08d 42 float barPress;
jedward 3:d17f07a0d08d 43 }tempEntry;
jedward 3:d17f07a0d08d 44
jedward 3:d17f07a0d08d 45 dataEntry storedDataArray [maxNumRecords];
jedward 3:d17f07a0d08d 46
Jdumpleton3 1:8585a8d417dc 47 int main(){
Jdumpleton3 1:8585a8d417dc 48 printf("SOFT253 simple Temperature Humidity and Pressure Sensor Monitor\n\r");
Jdumpleton3 1:8585a8d417dc 49 printf("Using the X-NUCLEO-IKS01A1 shield and MBED Libraries\n\r");
Jdumpleton3 1:8585a8d417dc 50
Jdumpleton3 2:27b92722246b 51 dataTimer.attach(&readData, dataReadTime); //Attach timer to data reader.
Jdumpleton3 0:b490b8486404 52
Jdumpleton3 1:8585a8d417dc 53 while(1)
Jdumpleton3 0:b490b8486404 54 {
Jdumpleton3 2:27b92722246b 55 if (isNewData == true){
jedward 3:d17f07a0d08d 56 storeNewRecord();
Jdumpleton3 2:27b92722246b 57 printData();
Jdumpleton3 2:27b92722246b 58 }
Jdumpleton3 1:8585a8d417dc 59
Jdumpleton3 1:8585a8d417dc 60 /* Flicker the LED. */
Jdumpleton3 0:b490b8486404 61 myled = 1; // LED is ON
Jdumpleton3 0:b490b8486404 62 Thread::wait(200); // 200 ms NB 'Thread::wait(int d);' !!! d is in milliseconds!
Jdumpleton3 0:b490b8486404 63 myled = 0; // LED is OFF
Jdumpleton3 0:b490b8486404 64 Thread::wait(100); // 100 ms
Jdumpleton3 2:27b92722246b 65 }
Jdumpleton3 2:27b92722246b 66 }
Jdumpleton3 2:27b92722246b 67
jedward 3:d17f07a0d08d 68 void storeNewRecord(){
jedward 3:d17f07a0d08d 69
jedward 3:d17f07a0d08d 70 if(headNode>=120){
jedward 3:d17f07a0d08d 71 headNode = 0;
jedward 3:d17f07a0d08d 72 }
jedward 3:d17f07a0d08d 73
jedward 3:d17f07a0d08d 74 storedDataArray[headNode] = tempEntry;
jedward 3:d17f07a0d08d 75 currentNode = headNode;
jedward 3:d17f07a0d08d 76 headNode++;
jedward 3:d17f07a0d08d 77 }
jedward 3:d17f07a0d08d 78
Jdumpleton3 2:27b92722246b 79 /* Reads all the data in whenever the ticker interrupt is called */
Jdumpleton3 2:27b92722246b 80 void readData(){
Jdumpleton3 2:27b92722246b 81 //Check if old data has been printed if it hasn't don't do anything
Jdumpleton3 2:27b92722246b 82 //As you have interrupted printdata section.
Jdumpleton3 2:27b92722246b 83 if (isNewData == false){
jedward 3:d17f07a0d08d 84 //Random data CHANGE ME
Jdumpleton3 2:27b92722246b 85 dataGen.ReadTempHumi(&tempCelsius, &humi);
Jdumpleton3 2:27b92722246b 86
Jdumpleton3 2:27b92722246b 87 barometerPressure = dataGen.pressure();
Jdumpleton3 2:27b92722246b 88 barometerTemperature = dataGen.temperature();
Jdumpleton3 2:27b92722246b 89
jedward 3:d17f07a0d08d 90 tempEntry.airTemp = tempCelsius;
jedward 3:d17f07a0d08d 91 tempEntry.airPress = humi;
jedward 3:d17f07a0d08d 92 tempEntry.barTemp = barometerTemperature;
jedward 3:d17f07a0d08d 93 tempEntry.barPress = barometerPressure;
jedward 3:d17f07a0d08d 94
Jdumpleton3 2:27b92722246b 95 isNewData = true;
Jdumpleton3 2:27b92722246b 96 }
Jdumpleton3 2:27b92722246b 97 }
Jdumpleton3 2:27b92722246b 98 /* Prints the data that was read */
Jdumpleton3 2:27b92722246b 99 void printData(){
jedward 3:d17f07a0d08d 100 printf("0%i %4.2fC %3.1f%%", headNode, tempEntry.airTemp, tempEntry.airPress);
jedward 3:d17f07a0d08d 101 printf(" %6.1f %4.1f\r\n", tempEntry.barPress, tempEntry.barTemp);
Jdumpleton3 2:27b92722246b 102 isNewData = false;
Jdumpleton3 2:27b92722246b 103 }
Jdumpleton3 0:b490b8486404 104
Jdumpleton3 0:b490b8486404 105
Jdumpleton3 0:b490b8486404 106
Jdumpleton3 2:27b92722246b 107 /* Old Code
Jdumpleton3 2:27b92722246b 108 LPS25H barometer(i2c2, LPS25H_V_CHIP_ADDR);
Jdumpleton3 2:27b92722246b 109 HTS221 humidity(I2C_SDA, I2C_SCL);
Jdumpleton3 0:b490b8486404 110
Jdumpleton3 2:27b92722246b 111 Humidity sensor setup.
Jdumpleton3 2:27b92722246b 112 humidity.init();
Jdumpleton3 2:27b92722246b 113 humidity.calib();
Jdumpleton3 2:27b92722246b 114
Jdumpleton3 2:27b92722246b 115 //printf("%#x\n\r",barometer.read_id());
Jdumpleton3 2:27b92722246b 116
Jdumpleton3 2:27b92722246b 117 barometer.get();
Jdumpleton3 2:27b92722246b 118 printf(" %6.1f %4.1f\r\n", barometer.pressure(), barometer.temperature());
Jdumpleton3 2:27b92722246b 119 humidity.ReadTempHumi(&tempCelsius, &humi);
Jdumpleton3 2:27b92722246b 120 printf("%4.2fC %3.1f%%", tempCelsius, humi);
Jdumpleton3 2:27b92722246b 121 */