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SOFT253 Coursework Weather Reader
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Diff: main.cpp
- Revision:
- 2:27b92722246b
- Parent:
- 1:8585a8d417dc
- Child:
- 3:d17f07a0d08d
diff -r 8585a8d417dc -r 27b92722246b main.cpp --- a/main.cpp Fri Apr 21 17:33:38 2017 +0000 +++ b/main.cpp Sat Apr 22 09:27:18 2017 +0000 @@ -4,66 +4,87 @@ #include "LPS25H.h" #include "DataGenerator.h" - +//Complex.Variables DigitalOut myled(LED1); I2C i2c2(I2C_SDA, I2C_SCL); +Ticker dataTimer; +//Method Headers +void readData(); +void createDataThread(); +void printData(); + +//Prim.Variables float tempCelsius = 25.50; float humi = 55; +float barometerPressure = 0; +float barometerTemperature = 0; +float dataReadTime = 2.0; int humiMax = 100; char cmd=0; uint32_t seconds = 0, minutes=0, hours=0; -//LPS25H barometer(i2c2, LPS25H_V_CHIP_ADDR); -//HTS221 humidity(I2C_SDA, I2C_SCL); +//Can't print data in a ticker method (not interrupt safe) +//This is set once we have got new data, so it can be printed safely later +bool isNewData=false; -/* Test Data generator */ +// Test Data generator setup DataGenerator dataGen; int main(){ - //Humidity sensor setup. - //humidity.init(); - //humidity.calib(); - printf("SOFT253 simple Temperature Humidity and Pressure Sensor Monitor\n\r"); printf("Using the X-NUCLEO-IKS01A1 shield and MBED Libraries\n\r"); - //printf("%#x\n\r",barometer.read_id()); + dataTimer.attach(&readData, dataReadTime); //Attach timer to data reader. while(1) { - /*Original temperature reader from nucleo. */ - //humidity.ReadTempHumi(&tempCelsius, &humi); - - dataGen.ReadTempHumi(&tempCelsius, &humi); - - printf("%4.2fC %3.1f%%", tempCelsius, humi); - - /*Original line of code working with the nucleo barometer. */ - //barometer.get(); - //printf(" %6.1f %4.1f\r\n", barometer.pressure(), barometer.temperature()); - - printf(" %6.1f %4.1f\r\n", dataGen.pressure(), dataGen.temperature()); + if (isNewData == true){ + printData(); + } /* Flicker the LED. */ myled = 1; // LED is ON Thread::wait(200); // 200 ms NB 'Thread::wait(int d);' !!! d is in milliseconds! myled = 0; // LED is OFF Thread::wait(100); // 100 ms - } - } - + } +} + +/* Reads all the data in whenever the ticker interrupt is called */ +void readData(){ + //Check if old data has been printed if it hasn't don't do anything + //As you have interrupted printdata section. + if (isNewData == false){ + dataGen.ReadTempHumi(&tempCelsius, &humi); + + barometerPressure = dataGen.pressure(); + barometerTemperature = dataGen.temperature(); + + isNewData = true; + } +} +/* Prints the data that was read */ +void printData(){ + printf("%4.2fC %3.1f%%", tempCelsius, humi); + printf(" %6.1f %4.1f\r\n", barometerPressure, barometerTemperature); + isNewData = false; +} -/*#include "mbed.h" -DigitalOut led1(LED1); +/* Old Code +LPS25H barometer(i2c2, LPS25H_V_CHIP_ADDR); +HTS221 humidity(I2C_SDA, I2C_SCL); -// main() runs in its own thread in the OS -int main() { - while (true) { - led1 = !led1; - wait(0.5); - } -} -*/ +Humidity sensor setup. +humidity.init(); +humidity.calib(); + +//printf("%#x\n\r",barometer.read_id()); + +barometer.get(); +printf(" %6.1f %4.1f\r\n", barometer.pressure(), barometer.temperature()); +humidity.ReadTempHumi(&tempCelsius, &humi); +printf("%4.2fC %3.1f%%", tempCelsius, humi); +*/ \ No newline at end of file