Augustine Kizito / Mbed 2 deprecated Weather_Station

Year Two Project ELEC 2645: Embedded Systems Project Portable Weather Station

Dependencies:   BMP180 ConfigFile N5110 PowerControl beep mbed

Outputs.h@0:da2b8c7a1ec1, 2015-05-11 (annotated)

Committer:
OHstin
Date:
Mon May 11 15:25:52 2015 +0000
Revision:
0:da2b8c7a1ec1
Completed Weather Station

Who changed what in which revision?

UserRevisionLine numberNew contents of line
OHstin 0:da2b8c7a1ec1 1 /**
OHstin 0:da2b8c7a1ec1 2 @file Outputs.h
OHstin 0:da2b8c7a1ec1 3 @brief Contains all the outputs required for the weather station application\n
OHstin 0:da2b8c7a1ec1 4 @brief the outputs are N5110 LCD screen, piezo buzzer, red LED and blue LED
OHstin 0:da2b8c7a1ec1 5 @author Augustine K Kizito
OHstin 0:da2b8c7a1ec1 6 @date April 2015
OHstin 0:da2b8c7a1ec1 7 */
OHstin 0:da2b8c7a1ec1 8
OHstin 0:da2b8c7a1ec1 9 #ifndef OUTPUTS_H
OHstin 0:da2b8c7a1ec1 10 #define OUTPUTS_H
OHstin 0:da2b8c7a1ec1 11
OHstin 0:da2b8c7a1ec1 12 #include "N5110.h"
OHstin 0:da2b8c7a1ec1 13 #include "beep.h"
OHstin 0:da2b8c7a1ec1 14 #include "PowerControl/PowerControl.h"
OHstin 0:da2b8c7a1ec1 15
OHstin 0:da2b8c7a1ec1 16 N5110 lcd(p7,p8,p9,p10,p11,p13,p26); // pwm for led backlight
OHstin 0:da2b8c7a1ec1 17 Beep buzzer(p21); // pwm for buzzer
OHstin 0:da2b8c7a1ec1 18
OHstin 0:da2b8c7a1ec1 19 DigitalOut logLed(p24); //led that turns on when logging
OHstin 0:da2b8c7a1ec1 20 DigitalOut batStatLed(p23); // led that turns on when battery voltage is low
OHstin 0:da2b8c7a1ec1 21
OHstin 0:da2b8c7a1ec1 22 Ticker batStatTimer;
OHstin 0:da2b8c7a1ec1 23 bool batStatLedState = false; // tracks if the batStatLed is in use
OHstin 0:da2b8c7a1ec1 24
OHstin 0:da2b8c7a1ec1 25 void turnOnBatStatLed() // turns on the battery status led
OHstin 0:da2b8c7a1ec1 26 {
OHstin 0:da2b8c7a1ec1 27 if(!batStatLedState) { // battery status led is not already on
OHstin 0:da2b8c7a1ec1 28 // turn it on
OHstin 0:da2b8c7a1ec1 29 batStatLed = 1;
OHstin 0:da2b8c7a1ec1 30 // call this function every 2 seconds
OHstin 0:da2b8c7a1ec1 31 batStatTimer.attach(&turnOnBatStatLed,2);
OHstin 0:da2b8c7a1ec1 32 // battery status led is now in use
OHstin 0:da2b8c7a1ec1 33 batStatLedState = true;
OHstin 0:da2b8c7a1ec1 34 } else { // battery status led is already on
OHstin 0:da2b8c7a1ec1 35
OHstin 0:da2b8c7a1ec1 36 // toggle the battery status led
OHstin 0:da2b8c7a1ec1 37 batStatLed = !batStatLed;
OHstin 0:da2b8c7a1ec1 38 }
OHstin 0:da2b8c7a1ec1 39
OHstin 0:da2b8c7a1ec1 40 }
OHstin 0:da2b8c7a1ec1 41
OHstin 0:da2b8c7a1ec1 42 void turnOffBatStatLed() // turns off the battery status led
OHstin 0:da2b8c7a1ec1 43 {
OHstin 0:da2b8c7a1ec1 44 // battery status led is still on
OHstin 0:da2b8c7a1ec1 45 if (batStatLedState) {
OHstin 0:da2b8c7a1ec1 46 // disable the interrupt that toggles the led
OHstin 0:da2b8c7a1ec1 47 batStatTimer.detach();
OHstin 0:da2b8c7a1ec1 48 // the battery status led is off
OHstin 0:da2b8c7a1ec1 49 batStatLedState = false;
OHstin 0:da2b8c7a1ec1 50 // turn off the battery status led
OHstin 0:da2b8c7a1ec1 51 batStatLed = 0;
OHstin 0:da2b8c7a1ec1 52
OHstin 0:da2b8c7a1ec1 53 }
OHstin 0:da2b8c7a1ec1 54
OHstin 0:da2b8c7a1ec1 55 }
OHstin 0:da2b8c7a1ec1 56
OHstin 0:da2b8c7a1ec1 57 Ticker logLedTimer;
OHstin 0:da2b8c7a1ec1 58 bool logLedState = false; // tracks if the log Led is in use
OHstin 0:da2b8c7a1ec1 59
OHstin 0:da2b8c7a1ec1 60 void turnOnLogLed() // turns on the log led
OHstin 0:da2b8c7a1ec1 61 {
OHstin 0:da2b8c7a1ec1 62 if(!logLedState) { // log led is not already on
OHstin 0:da2b8c7a1ec1 63 // turn it on
OHstin 0:da2b8c7a1ec1 64 logLed = 1;
OHstin 0:da2b8c7a1ec1 65 // call this function every 2 seconds
OHstin 0:da2b8c7a1ec1 66 logLedTimer.attach(&turnOnLogLed,2);
OHstin 0:da2b8c7a1ec1 67 // log led is now in use
OHstin 0:da2b8c7a1ec1 68 logLedState = true;
OHstin 0:da2b8c7a1ec1 69 } else { // log led is already on
OHstin 0:da2b8c7a1ec1 70
OHstin 0:da2b8c7a1ec1 71 // toggle the log led
OHstin 0:da2b8c7a1ec1 72 logLed = !logLed;
OHstin 0:da2b8c7a1ec1 73 }
OHstin 0:da2b8c7a1ec1 74
OHstin 0:da2b8c7a1ec1 75 }
OHstin 0:da2b8c7a1ec1 76
OHstin 0:da2b8c7a1ec1 77 void turnOffLogLed() // turns off the log led
OHstin 0:da2b8c7a1ec1 78 {
OHstin 0:da2b8c7a1ec1 79 // log led is still on
OHstin 0:da2b8c7a1ec1 80 if (logLedState) {
OHstin 0:da2b8c7a1ec1 81 // disable the interrupt that toggles the led
OHstin 0:da2b8c7a1ec1 82 logLedTimer.detach();
OHstin 0:da2b8c7a1ec1 83 // the log led is off
OHstin 0:da2b8c7a1ec1 84 logLedState = false;
OHstin 0:da2b8c7a1ec1 85 // turn off the log led
OHstin 0:da2b8c7a1ec1 86 logLed = 0;
OHstin 0:da2b8c7a1ec1 87
OHstin 0:da2b8c7a1ec1 88 }
OHstin 0:da2b8c7a1ec1 89
OHstin 0:da2b8c7a1ec1 90 }
OHstin 0:da2b8c7a1ec1 91
OHstin 0:da2b8c7a1ec1 92 bool soundFx = true; // variable that tracks the sound effects
OHstin 0:da2b8c7a1ec1 93 int currentBrightness; // variable that tracks the LCD brightness
OHstin 0:da2b8c7a1ec1 94
OHstin 0:da2b8c7a1ec1 95 void playSound()
OHstin 0:da2b8c7a1ec1 96 {
OHstin 0:da2b8c7a1ec1 97 if (soundFx) { // the sound effects are activated
OHstin 0:da2b8c7a1ec1 98
OHstin 0:da2b8c7a1ec1 99 // if brightenss is at 50 or 20 % , reduce buzzer frequency.
OHstin 0:da2b8c7a1ec1 100 // this is implemented because the above modes seem to affect the
OHstin 0:da2b8c7a1ec1 101 // PWM signal to the LCD brightness. Reducing the buzzer frequency
OHstin 0:da2b8c7a1ec1 102 // somewhat alleviates this problem
OHstin 0:da2b8c7a1ec1 103
OHstin 0:da2b8c7a1ec1 104 if (currentBrightness == 50 || currentBrightness == 25 ) {
OHstin 0:da2b8c7a1ec1 105 buzzer.beep(80,0.05); // sound 80kHz tone
OHstin 0:da2b8c7a1ec1 106
OHstin 0:da2b8c7a1ec1 107 } else { // sound the normal 2kHz Tone
OHstin 0:da2b8c7a1ec1 108 buzzer.beep(2000.0,0.1);
OHstin 0:da2b8c7a1ec1 109 }
OHstin 0:da2b8c7a1ec1 110
OHstin 0:da2b8c7a1ec1 111
OHstin 0:da2b8c7a1ec1 112
OHstin 0:da2b8c7a1ec1 113 }
OHstin 0:da2b8c7a1ec1 114
OHstin 0:da2b8c7a1ec1 115
OHstin 0:da2b8c7a1ec1 116 }
OHstin 0:da2b8c7a1ec1 117
OHstin 0:da2b8c7a1ec1 118
OHstin 0:da2b8c7a1ec1 119 #endif