Bresdin O'Malley / Mbed 2 deprecated plant_vital_signs_v1

The use of the KL-46Z FRDM microcontroller to handle the I/O to detect water moisture and light exposure for a potted plant using a 555 Timer Chip and onboard visible light sensor. This project is incomplete as of 4/26/15

Dependencies:   SLCD mbed

main.cpp@2:435f5545e2b6, 2015-05-04 (annotated)

Committer:
bomalley
Date:
Mon May 04 21:37:27 2015 +0000
Revision:
2:435f5545e2b6
Parent:
1:5b951fe1f430 
Finished timer chip fn

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bomalley 0:1a57cdd09c38 1 #include "mbed.h"
bomalley 0:1a57cdd09c38 2 #include "SLCD.h"
bomalley 0:1a57cdd09c38 3
bomalley 0:1a57cdd09c38 4 #define PROGNAME "Plant Vital Sign Detector v1 v3\r\n"
bomalley 0:1a57cdd09c38 5 #define HIGH 1
bomalley 0:1a57cdd09c38 6 #define LOW 0
bomalley 0:1a57cdd09c38 7 #define PIN_2_555 D2
bomalley 0:1a57cdd09c38 8 #define PIN_3_555 D3
bomalley 0:1a57cdd09c38 9 #define PIN_3_CLONE LED_GREEN
bomalley 0:1a57cdd09c38 10 #define LEDON LOW
bomalley 0:1a57cdd09c38 11 #define LEDOFF HIGH
bomalley 0:1a57cdd09c38 12 #define OUTPULSELEN 100 // ms
bomalley 0:1a57cdd09c38 13
bomalley 0:1a57cdd09c38 14 #define DATATIME 100
bomalley 0:1a57cdd09c38 15 #define SERIALSPEED 57600
bomalley 0:1a57cdd09c38 16 #define MAX_OUT 1500 // ms
bomalley 0:1a57cdd09c38 17 #define MIN_OUT 500
bomalley 0:1a57cdd09c38 18 #define ABORTTIME 3500
bomalley 0:1a57cdd09c38 19 #define INPUTSTART 1
bomalley 0:1a57cdd09c38 20 #define DATARATE 1000 // ms time between data takes.
bomalley 0:1a57cdd09c38 21 #define LCDLEN 10
bomalley 0:1a57cdd09c38 22
bomalley 1:5b951fe1f430 23 #define MAXTIME 2
bomalley 0:1a57cdd09c38 24 #define TIMERSTATE 0
bomalley 0:1a57cdd09c38 25 #define CHECKMOISTURE 1
bomalley 0:1a57cdd09c38 26 #define MOREMOISTURE 2
bomalley 0:1a57cdd09c38 27 #define CHECKLIGHT 3
bomalley 0:1a57cdd09c38 28 #define MORELIGHT 4
bomalley 0:1a57cdd09c38 29 #define LESSLIGHT 5
bomalley 0:1a57cdd09c38 30
bomalley 2:435f5545e2b6 31 #define LIGHTMIN .100 //there is too much light
bomalley 2:435f5545e2b6 32 #define LIGHTMAX .900 // there is not enough light
bomalley 2:435f5545e2b6 33
bomalley 2:435f5545e2b6 34 #define WATERMAX 1500 //Do not water. There is Moisture
bomalley 2:435f5545e2b6 35 #define WATERMIN 3000 //Water, there is no moisture
bomalley 2:435f5545e2b6 36
bomalley 0:1a57cdd09c38 37 #define ML "MORE LIGHT"
bomalley 0:1a57cdd09c38 38 #define LL "LESS LIGHT"
bomalley 0:1a57cdd09c38 39 #define MW "MORE WATER"
bomalley 0:1a57cdd09c38 40
bomalley 0:1a57cdd09c38 41
bomalley 0:1a57cdd09c38 42 // this constant won't change:
bomalley 0:1a57cdd09c38 43 DigitalOut oneShotIn (PIN_2_555);
bomalley 0:1a57cdd09c38 44 // the pin that the pushbutton is attached to
bomalley 0:1a57cdd09c38 45 DigitalIn oneShotOut (PIN_3_555);
bomalley 0:1a57cdd09c38 46 DigitalOut ledPin(PIN_3_CLONE); // the pin that the LED is attached to
bomalley 0:1a57cdd09c38 47 AnalogIn LightSensor(PTE22); // define light sensor
bomalley 0:1a57cdd09c38 48
bomalley 0:1a57cdd09c38 49 Serial pc(USBTX, USBRX);
bomalley 0:1a57cdd09c38 50 SLCD slcd;
bomalley 0:1a57cdd09c38 51 Timer milliTimer;
bomalley 0:1a57cdd09c38 52
bomalley 0:1a57cdd09c38 53 int PgmState;
bomalley 0:1a57cdd09c38 54 long oneShotLen;
bomalley 0:1a57cdd09c38 55 long timeOut = ABORTTIME;
bomalley 0:1a57cdd09c38 56 long nextDataTake = DATARATE;
bomalley 0:1a57cdd09c38 57 long oneShotBegin;
bomalley 0:1a57cdd09c38 58 long oneShotEnd;
bomalley 0:1a57cdd09c38 59 // Variables will change:
bomalley 0:1a57cdd09c38 60 int buttonPushCounter = 0; // counter for the number of button presses
bomalley 0:1a57cdd09c38 61 int buttonState = 0; // current state of the button
bomalley 0:1a57cdd09c38 62 int lastButtonState = 0; // previous state of the button
bomalley 0:1a57cdd09c38 63
bomalley 0:1a57cdd09c38 64 float lightVal; //value of the light sensor
bomalley 0:1a57cdd09c38 65 unsigned short lightWord;
bomalley 0:1a57cdd09c38 66
bomalley 0:1a57cdd09c38 67 int timerChip;
bomalley 0:1a57cdd09c38 68 char lcdData[LCDLEN];
bomalley 0:1a57cdd09c38 69
bomalley 0:1a57cdd09c38 70 void LCDMess(char *lMess){
bomalley 0:1a57cdd09c38 71 slcd.Home();
bomalley 0:1a57cdd09c38 72 slcd.clear();
bomalley 0:1a57cdd09c38 73 slcd.printf(lMess);
bomalley 0:1a57cdd09c38 74 }
bomalley 0:1a57cdd09c38 75 void pulseOut (long pulseLen){
bomalley 0:1a57cdd09c38 76 oneShotIn.write(LOW);
bomalley 0:1a57cdd09c38 77 wait_us(pulseLen);
bomalley 0:1a57cdd09c38 78 oneShotIn.write(HIGH);
bomalley 0:1a57cdd09c38 79 }
bomalley 0:1a57cdd09c38 80
bomalley 0:1a57cdd09c38 81 void setup() {
bomalley 0:1a57cdd09c38 82
bomalley 0:1a57cdd09c38 83 // initialize serial communication:
bomalley 0:1a57cdd09c38 84 oneShotIn.write(HIGH);
bomalley 0:1a57cdd09c38 85 oneShotOut.mode(PullNone);
bomalley 0:1a57cdd09c38 86 milliTimer.start();
bomalley 0:1a57cdd09c38 87 milliTimer.reset();
bomalley 0:1a57cdd09c38 88 }
bomalley 0:1a57cdd09c38 89
bomalley 0:1a57cdd09c38 90 void readLightSensor() {
bomalley 0:1a57cdd09c38 91 lightVal = LightSensor.read();
bomalley 0:1a57cdd09c38 92 lightWord = LightSensor.read_u16();
bomalley 0:1a57cdd09c38 93 pc.printf("LS => %1.3f %5d \r\n", lightVal, lightWord);
bomalley 0:1a57cdd09c38 94
bomalley 0:1a57cdd09c38 95 if(lightVal <= LIGHTMIN) {
bomalley 0:1a57cdd09c38 96 PgmState = LESSLIGHT;
bomalley 0:1a57cdd09c38 97 }
bomalley 0:1a57cdd09c38 98 else if(lightVal >= LIGHTMAX) {
bomalley 0:1a57cdd09c38 99 PgmState = MORELIGHT;
bomalley 0:1a57cdd09c38 100 }
bomalley 0:1a57cdd09c38 101 }
bomalley 0:1a57cdd09c38 102
bomalley 0:1a57cdd09c38 103 void readTimerChip() {
bomalley 0:1a57cdd09c38 104 timerChip = oneShotOut.read();
bomalley 0:1a57cdd09c38 105 // pc.printf();
bomalley 2:435f5545e2b6 106 /****
bomalley 2:435f5545e2b6 107 #define WATERMAX 1500 //Do not water. There is Moisture
bomalley 2:435f5545e2b6 108 #define WATERMIN 3000 //Water, there is no moisture
bomalley 2:435f5545e2b6 109 ***/
bomalley 2:435f5545e2b6 110
bomalley 2:435f5545e2b6 111 if(timerChip >= WATERMAX) {
bomalley 2:435f5545e2b6 112 //Do not water move to check light
bomalley 2:435f5545e2b6 113 PgmState = CHECKLIGHT;
bomalley 2:435f5545e2b6 114 }
bomalley 2:435f5545e2b6 115 else if(timerChip <= WATERMIN) {
bomalley 2:435f5545e2b6 116 //Tell pc to water then move to check light
bomalley 2:435f5545e2b6 117 pc.printf(MW);
bomalley 2:435f5545e2b6 118 PgmState = CHECKLIGHT;
bomalley 2:435f5545e2b6 119 }
bomalley 0:1a57cdd09c38 120 }
bomalley 0:1a57cdd09c38 121
bomalley 0:1a57cdd09c38 122 int main(){
bomalley 2:435f5545e2b6 123
bomalley 0:1a57cdd09c38 124 pulseOut(OUTPULSELEN);
bomalley 1:5b951fe1f430 125 //LCDMess(PROGNAME);
bomalley 2:435f5545e2b6 126 setup();
bomalley 0:1a57cdd09c38 127 PgmState = TIMERSTATE;
bomalley 1:5b951fe1f430 128 int count = 0;
bomalley 0:1a57cdd09c38 129
bomalley 0:1a57cdd09c38 130 while (true) {
bomalley 0:1a57cdd09c38 131 switch(PgmState) {
bomalley 0:1a57cdd09c38 132 case TIMERSTATE:
bomalley 0:1a57cdd09c38 133 //loops until timer => MAXTIME
bomalley 0:1a57cdd09c38 134 //Go on to CHECKMOISTURE
bomalley 0:1a57cdd09c38 135 if(milliTimer.read_ms() >= MAXTIME) {
bomalley 0:1a57cdd09c38 136 milliTimer.reset();
bomalley 2:435f5545e2b6 137 PgmState = CHECKMOISTURE;
bomalley 0:1a57cdd09c38 138 }
bomalley 0:1a57cdd09c38 139 break;
bomalley 0:1a57cdd09c38 140 case CHECKMOISTURE:
bomalley 0:1a57cdd09c38 141 //call readTimerChip();
bomalley 0:1a57cdd09c38 142 readTimerChip();
bomalley 0:1a57cdd09c38 143 break;
bomalley 0:1a57cdd09c38 144 case MOREMOISTURE:
bomalley 0:1a57cdd09c38 145 //Output to PC "NEEDS WATER"
bomalley 0:1a57cdd09c38 146 //Change state to CHECKLIGHT
bomalley 0:1a57cdd09c38 147 pc.printf(MW);
bomalley 0:1a57cdd09c38 148 break;
bomalley 0:1a57cdd09c38 149 case CHECKLIGHT:
bomalley 0:1a57cdd09c38 150 //call readLightSensor
bomalley 0:1a57cdd09c38 151 readLightSensor();
bomalley 0:1a57cdd09c38 152 break;
bomalley 0:1a57cdd09c38 153 case MORELIGHT:
bomalley 0:1a57cdd09c38 154 //output to PC "MORE LIGHT"
bomalley 0:1a57cdd09c38 155 //CHange state to TIMERSTATE
bomalley 0:1a57cdd09c38 156 pc.printf(ML);
bomalley 0:1a57cdd09c38 157 PgmState = TIMERSTATE;
bomalley 0:1a57cdd09c38 158 break;
bomalley 0:1a57cdd09c38 159 case LESSLIGHT:
bomalley 0:1a57cdd09c38 160 //OP to PC "LESS LIGHT"
bomalley 0:1a57cdd09c38 161 //Chane State to TIMERSTATE
bomalley 0:1a57cdd09c38 162 pc.printf(LL);
bomalley 0:1a57cdd09c38 163 PgmState = TIMERSTATE;
bomalley 0:1a57cdd09c38 164 break;
bomalley 1:5b951fe1f430 165
bomalley 0:1a57cdd09c38 166 }
bomalley 1:5b951fe1f430 167 count++;
bomalley 1:5b951fe1f430 168 pc.printf("d",count);
bomalley 0:1a57cdd09c38 169 wait(DATATIME);
bomalley 0:1a57cdd09c38 170 }
bomalley 0:1a57cdd09c38 171 }