Michael Fischler
Weather Station using an mBed microcontroller and a Windows CE Device
Dependencies: TextLCD mbed HMC6352
main.cpp
- Committer:
- mafischl
- Date:
- 2011-12-15
- Revision:
- 0:75e6a2e50519
File content as of revision 0:75e6a2e50519:
#include "mbed.h"
#include "GPS.h"
#include "MODSERIAL.h"
#include "TextLCD.h"
#include "HMC6352.h"
#define MESSAGE_BUFFER_SIZE 2048
#define REVID 0x00 //ASIC Revision Number
#define OPSTATUS 0x04 //Operation Status
#define STATUS 0x07 //ASIC Status
#define START 0x0A //Constant Readings
#define PRESSURE 0x1F //Pressure 3 MSB
#define PRESSURE_LSB 0x20 //Pressure 16 LSB
#define TEMP 0x21 //16 bit temp
extern "C" void mbed_reset(); // Allows for software resets
MODSERIAL serialIO(p28,p27); // RS-232 to PC (tx, rx)
GPS gps(p13,p14); // RS-232 to GPS (tx, rx)
TextLCD lcd(p23, p21, p22, p11, p12, p8); // rs, e, d4-d7
HMC6352 compass(p9, p10); // I2C (sda, scl)
SPI spi(p5, p6, p7); // mosi, miso, sclk
DigitalOut cs(p25); // chip select
DigitalOut drdy(p26); // DRDY pin
AnalogIn humidity(p17); // Humidity Analog from Phidgets
AnalogIn temperature2(p20); // Temperature Analog from Phidgets
AnalogIn light(p15); // Light Analog Sensor
InterruptIn windSpeed(p18); // Anemometer for Wind Speed
AnalogIn windDirection(p19); // Wind Direction
InterruptIn rainGauge(p16); // Rain Gauge Click
DigitalOut wdtLED(LED4); // WatchDog Indicator
DigitalOut heartBeat(LED1); // Heartbeat
DigitalOut led2(LED2); // Test for message process
char messageBufferIncoming[MESSAGE_BUFFER_SIZE];
char messageBufferOutgoing[MESSAGE_BUFFER_SIZE];
LocalFileSystem local("local");
Timer t;
int timeCount;
int state;
int error;
int progressBarCount = 0;
int pressureDirection = 0;
int rainLevel = 0; // Rain Level (3 = heavy rain, 2 = moderate rain, 1 = light rain, 0 = no rain)
int rainInterval = 780; // Start at high count, as soon as the rain gauge clicks once, the level is based on the the rain interval.
int rainCount = 0;
int speedCount = 0;
int lightLevel = 0; // light level (3 = sunny, 2 = partly cloudy, 1 = mostly cloudy, 0 = night)
float lightCount = 0.0;
float lightValue;
int lightTimeCount = 1;
bool GPSlock = 0;
float prevLatitude = 0.0;
float prevLongitude = 0.0;
float prevPressure = 0.0;
float getHumidity;
float w_direction = 0.0;
float wSpeed = 0.0;
float getTemperature = 0.0;
float rainAmount = 0.0;
float temp_in;
unsigned long pressure_lsb;
unsigned long pressure_msb;
unsigned long temp_pressure;
unsigned long pressure;
char forecastOutput[14]; // Forecast Output String
char outputString[161]; // Output string for getWeather()
// WATCHDOG FUNCTION
class Watchdog {
public:
// Load timeout value in watchdog timer and enable
void kick(float s) {
LPC_WDT->WDCLKSEL = 0x1; // Set CLK src to PCLK
uint32_t clk = SystemCoreClock / 16; // WD has a fixed /4 prescaler, PCLK default is /4
LPC_WDT->WDTC = s * (float)clk;
LPC_WDT->WDMOD = 0x3; // Enabled and Reset
kick();
}
// "kick" or "feed" the dog - reset the watchdog timer
// by writing this required bit pattern
void kick() {
LPC_WDT->WDFEED = 0xAA;
LPC_WDT->WDFEED = 0x55;
}
};
Watchdog wdt;
const float tbl_windvane[16][2] = {
{0.0, 33000}, {22.5, 6570}, {45.0, 8200}, {67.5, 891},
{90.0, 1000}, {112.5, 688}, {135.0, 2200}, {157.5, 1410},
{180.0, 3900}, {202.5, 3140}, {225.0, 16000}, {247.5, 14120},
{270.0, 120000}, {292.5, 42120}, {315.0, 64900}, {337.5, 21880}
};
char read_register(char register_name) {
register_name <<=2;
register_name &= 0xFC;
cs=0; //Select SPI device
spi.write(register_name); //Send register location
char register_value=spi.write(0x00);
cs=1;
return register_value;
}
void write_register(char register_name, char register_value) {
register_name <<= 2;
register_name |= 0x02; //le estamos diciendo que escriba
cs=0; //Select SPI device
spi.write(register_name); //Send register location
spi.write(register_value); //Send value to record into register
cs=1;
}
float read_register16(char register_name) {
register_name <<= 2;
register_name &= 0xFC; //Read command
cs=0; //Select SPI Device
spi.write(register_name); //Write byte to device
int in_byte1 = spi.write(0x00);
int in_byte2 = spi.write(0x00);
cs=1;
float in_word= (in_byte1<<=8) | (in_byte2);
return(in_word);
}
void w_rain() {
rainCount++;
if (rainInterval < 129) {
rainLevel = 3; // heavy rain
} else if ((rainInterval >= 130) && (rainInterval < 390)) {
rainLevel = 2; // moderate rain
} else if ((rainInterval >= 391) && (rainInterval < 780)) {
rainLevel = 1; // light rain
} else {
rainLevel = 0; // no rain
}
rainInterval = 0;
}
void w_speed() {
speedCount++;
}
float wdirection() {
int i;
float v;
v = windDirection * 3.3f; // V
v = v / ((3.3f - v) / 10000.0f); // ohm
for (i = 0; i < 16; i ++) {
if (v > tbl_windvane[i][1] * 0.9 && v < tbl_windvane[i][1] * 1.1) {
return tbl_windvane[i][0];
}
}
return 0;
}
void messageReceive(MODSERIAL_IRQ_INFO *q) {
MODSERIAL *sys = q->serial;
sys->move(messageBufferIncoming, MESSAGE_BUFFER_SIZE);
// Routines for Received Commands
//Testing Routines
if (!strncmp(messageBufferIncoming, "LED2:1", sizeof("LED2:1")-1)) led2 = 1; // For testing
else if (!strncmp(messageBufferIncoming, "LED2:0", sizeof("LED2:0")-1)) led2 = 0; // For testing
else if (!strncmp(messageBufferIncoming, "LED2:2", sizeof("LED2:2")-1)) led2 = !led2; // For testing
// Reset mBed microcontroller
else if (!strncmp(messageBufferIncoming, "reset", sizeof("reset")-1)) mbed_reset(); // Force Reset of mBed microcontroller
// Set State of mbed microcontroller
else if (!strncmp(messageBufferIncoming, "setState(Active)", sizeof("setState(Active)")-1)) {
state = 1; // Set State of Program
serialIO.printf("State set to: Active\r\n");
} else if (!strncmp(messageBufferIncoming, "setState(Paused)", sizeof("setState(Paused)")-1)) {
state = 0; // Set State of Program
serialIO.printf("State set to: Paused\r\n");
}
// Status of mbed microcontroller
else if (!strncmp(messageBufferIncoming, "getStatus()", sizeof("getStatus()")-1)) {
if (state == 0) serialIO.printf("Paused\r\n");
if (state == 1) serialIO.printf("Active\r\n");
// Extra Messages
}
// Error Messages
else if (!strncmp(messageBufferIncoming, "getErrorMsg()", sizeof("getErrorMsg()")-1)) {
if (error == 0) serialIO.printf("No Errors\r\n");
// Extra Messages
}
// GPS Location
else if (!strncmp(messageBufferIncoming, "getLocation()", sizeof("getLocation()")-1)) {
// Get Location
if (state == 1) {
if ((gps.lock)&&(GPSlock)) {
serialIO.printf("Location = %.3f, %.3f\r\n", gps.latitude, gps.longitude);
} else {
serialIO.printf("Location = Not Locked\r\n");
}
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// GPS Altitude
else if (!strncmp(messageBufferIncoming, "getAltitude()", sizeof("getAltitude()")-1)) {
// Get Altitude
if (state == 1) {
if ((gps.lock)&&(GPSlock)) {
serialIO.printf("Altitude = %.3f meters (MSL)\r\n", gps.altitude);
} else {
serialIO.printf("Altitude = Not Locked\r\n");
}
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// GPS Date
else if (!strncmp(messageBufferIncoming, "getGPSDate()", sizeof("getGPSDate()")-1)) {
// Get Date
if (state == 1) {
if ((gps.lock)&&(GPSlock)) {
serialIO.printf("Date = %f\r\n", gps.GPSdate);
} else {
serialIO.printf("Date = Not Locked\r\n");
}
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// GPS Time
else if (!strncmp(messageBufferIncoming, "getGPSTime()", sizeof("getGPSTime()")-1)) {
// Get Time
if (state == 1) {
if ((gps.lock)&&(GPSlock)) {
serialIO.printf("Time = %.3f\r\n", gps.GPStime);
} else {
serialIO.printf("Time = Not Locked\r\n");
}
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// GPS Lock
else if (!strncmp(messageBufferIncoming, "getGPSLock()", sizeof("getGPSLock()")-1)) {
// Get Lock
if (state == 1) {
if ((gps.lock)&&(GPSlock)) {
serialIO.printf("Locked\r\n");
} else {
serialIO.printf("Not Locked\r\n");
}
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// GPS Direction
else if (!strncmp(messageBufferIncoming, "getDirection()", sizeof("getDirection()")-1)) {
// Get Direction
if (state == 1) {
serialIO.printf("Direction = %.2f degrees\r\n", (compass.sample() / 10.0));
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// Temperature
else if (!strncmp(messageBufferIncoming, "getTemperature()", sizeof("getTemperature()")-1)) {
if (state == 1) {
// Get Temperature
drdy = 1;
wait(0.1);
temp_in = read_register16(TEMP);
wait(0.1);
drdy = 0;
wait(0.1);
temp_in = (temp_in*3.3)/5; // Calibration offset
temp_in = ((temp_in*9) / 100) + 32; // Convert to fahrenheit
serialIO.printf("Temperature = %.2f degrees F\r\n", temp_in);
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// Humidity
else if (!strncmp(messageBufferIncoming, "getHumidity()", sizeof("getHumidity()")-1)) {
if (state == 1) {
// Get Humidity
getHumidity = humidity;
getHumidity = getHumidity*38.12f;
serialIO.printf("Humidity = %.2f%%\r\n", getHumidity);
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// Pressure
else if (!strncmp(messageBufferIncoming, "getPressure()", sizeof("getPressure()")-1)) {
// Get Pressure
if (state == 1) {
drdy = 1;
wait(0.1);
pressure_msb = read_register(PRESSURE);
pressure_msb &= 0x07;
pressure_lsb = read_register16(PRESSURE_LSB);
wait(0.1);
drdy = 0;
wait(0.1);
pressure = ((pressure_msb<<16)| pressure_lsb);
if (pressure != prevPressure) {
if (prevPressure < pressure - 2000) {
pressureDirection = 1; // Pressure is increasing
prevPressure = pressure;
pressure /= 4; // Convert to pascals
pressure /= 3376.85f; // Convert from pascals to inches of mercury (60 deg F)
serialIO.printf("Pressure = %.2u, increasing\r\n", pressure);
} else if (prevPressure > pressure + 2000) {
pressureDirection = -1; // Pressure is decreasing
prevPressure = pressure;
pressure /= 4; // Convert to pascals
pressure /= 3376.85f; // Convert from pascals to inches of mercury (60 deg F)
serialIO.printf("Pressure = %.2u, decreasing\r\n", pressure);
} else {
pressureDirection = 0; // Pressure is relatively unchanged
pressure /= 4; // Convert to pascals
pressure /= 3376.85f; // Convert from pascals to inches of mercury (60 deg F)
serialIO.printf("Pressure = %.2u, no change\r\n", pressure);
}
}
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// Light
else if (!strncmp(messageBufferIncoming, "getLight()", sizeof("getLight()")-1)) {
if (state == 1) {
// Get Light
serialIO.printf("Light = %.2f\r\n", lightValue);
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// Light Level
else if (!strncmp(messageBufferIncoming, "getLightLevel()", sizeof("getLightLevel()")-1)) {
// Get Light Level
if (state == 1) {
switch (lightLevel) {
case 0:
serialIO.printf("It is Dark Outside.\r\n");
break;
case 1:
serialIO.printf("It is Mostly Cloudy.\r\n");
break;
case 2:
serialIO.printf("It is Partly Cloudy.\r\n");
break;
case 3:
serialIO.printf("It is Mostly Sunny.\r\n");
break;
default:
serialIO.printf("Unknown.\r\n");
}
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// Wind Direction
else if (!strncmp(messageBufferIncoming, "getWindDirection()", sizeof("getWindDirection()")-1)) {
// Get Wind Direction
if (state == 1) {
w_direction = wdirection();
w_direction = w_direction + (compass.sample() / 10.0); // Offset that the unit is no aligned by using compass
if (w_direction > 360) w_direction = w_direction - 360;
// Convert to cardinal direction
if (w_direction < 22.5) serialIO.printf("Wind Direction = N\r\n");
else if ((w_direction >= 22.5) && (w_direction < 67.5)) serialIO.printf("Wind Direction = NE\r\n");
else if ((w_direction >= 67.5) && (w_direction < 112.5)) serialIO.printf("Wind Direction = E\r\n");
else if ((w_direction >= 112.5) && (w_direction < 157.5)) serialIO.printf("Wind Direction = SE\r\n");
else if ((w_direction >= 157.5) && (w_direction < 202.5)) serialIO.printf("Wind Direction = S\r\n");
else if ((w_direction >= 202.5) && (w_direction < 247.5)) serialIO.printf("Wind Direction = SW\r\n");
else if ((w_direction >= 247.5) && (w_direction < 292.5)) serialIO.printf("Wind Direction = W\r\n");
else if ((w_direction >= 292.5) && (w_direction < 337.5)) serialIO.printf("Wind Direction = NW\r\n");
else serialIO.printf("Wind Direction = N\r\n");
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// Wind Speed
else if (!strncmp(messageBufferIncoming, "getWindSpeed()", sizeof("getWindSpeed()")-1)) {
// Get Wind Speed
if (state == 1) {
serialIO.printf("Wind Speed = %.2f mph\r\n", (wSpeed));
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// Wind
else if (!strncmp(messageBufferIncoming, "getWind()", sizeof("getWind()")-1)) {
// Get Wind Direction
if (state == 1) {
if (wSpeed < 1) {
serialIO.printf("There is no wind.\r\n");
} else if ((wSpeed >= 1) && (wSpeed < 5)) {
serialIO.printf("There are only calm winds.\r\n");
} else {
w_direction = wdirection();
w_direction = w_direction + (compass.sample() / 10.0); // Offset that the unit is no aligned by using compass
if (w_direction > 360) w_direction = w_direction - 360;
// Convert to cardinal direction
if (w_direction < 22.5) serialIO.printf("Wind traveling N at %.2f mph\r\n", wSpeed);
else if ((w_direction >= 22.5) && (w_direction < 67.5)) serialIO.printf("Wind traveling NE at %.2f mph\r\n", wSpeed);
else if ((w_direction >= 67.5) && (w_direction < 112.5)) serialIO.printf("Wind traveling E at %.2f mph\r\n", wSpeed);
else if ((w_direction >= 112.5) && (w_direction < 157.5)) serialIO.printf("Wind traveling SE at %.2f mph\r\n", wSpeed);
else if ((w_direction >= 157.5) && (w_direction < 202.5)) serialIO.printf("Wind traveling S at %.2f mph\r\n", wSpeed);
else if ((w_direction >= 202.5) && (w_direction < 247.5)) serialIO.printf("Wind traveling SW at %.2f mph\r\n", wSpeed);
else if ((w_direction >= 247.5) && (w_direction < 292.5)) serialIO.printf("Wind traveling W at %.2f mph\r\n", wSpeed);
else if ((w_direction >= 292.5) && (w_direction < 337.5)) serialIO.printf("Wind traveling NW at %.2f mph\r\n", wSpeed);
else serialIO.printf("Wind traveling N at %.2f mph\r\n", wSpeed);
}
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// Rain Amount
else if (!strncmp(messageBufferIncoming, "getRainAmount()", sizeof("getRainAmount()")-1)) {
// Get Rain Amount
if (state == 1) {
rainAmount = rainCount * 0.011f;
serialIO.printf("Rain Amount = %f inches today\r\n", (rainAmount));
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// Current Weather Command
else if (!strncmp(messageBufferIncoming, "getWeather()", sizeof("getWeather()")-1)) {
// Message Sample: Current Condition is (forecast) at (temperature) degrees (wind condition). Pressure is (pressure) and humidity is (humidity). Observed at (location).
if (state == 1) {
//Predict conditions based on data collected from rain gauge and light sensor.
if (rainLevel == 3) {
if (temp_in >= 37.0) { // Heavy Rain
strcpy(forecastOutput, "heavy rain at ");
} else if ((temp_in < 37.0) && (temp_in > 32.0)) { // Heavy Mix
strcpy(forecastOutput, "heavy rain/snow at ");
} else if (temp_in <= 32.0) { // Heavy Snow
strcpy(forecastOutput, "heavy snow at ");
}
} else if (rainLevel == 2) {
if (temp_in >= 37.0) { // Moderate Rain
strcpy(forecastOutput, "rain showers at ");
} else if ((temp_in < 37.0) && (temp_in > 32.0)) { // Moderate Mix
strcpy(forecastOutput, "rain/snow showers at ");
} else if (temp_in <= 32.0) { // Moderate Snow
strcpy(forecastOutput, "snow showers at ");
}
} else if (rainLevel == 1) {
if (temp_in >= 37.0) { // Light Rain
strcpy(forecastOutput, "light rain at ");
} else if ((temp_in < 37.0) && (temp_in > 32.0)) { // Light Mix
strcpy(forecastOutput, "light rain/snow at ");
} else if (temp_in <= 32.0) { // Light Snow
strcpy(forecastOutput, "snow flurries at ");
}
} else if (rainLevel == 0) { // No Precipitation
if (lightLevel == 0) { // Dark Skies (Nighttime)
strcpy(forecastOutput, "night skies at ");
} else if (lightLevel == 1) { // Mostly Cloudly
strcpy(forecastOutput, "mostly cloudy at ");
} else if (lightLevel == 2) { // Partly Cloudy
strcpy(forecastOutput, "partly cloudy at ");
} else { // Mostly Sunny
strcpy(forecastOutput, "mostly sunny at ");
}
}
// Temperature
drdy = 1;
wait(0.1);
temp_in = read_register16(TEMP);
wait(0.1);
drdy = 0;
wait(0.1);
temp_in = (temp_in*3.3)/5; // Calibration offset
temp_in = ((temp_in*9) / 100) + 32; // Convert to fahrenheit
// Pressure
drdy = 1;
wait(0.1);
pressure_msb = read_register(PRESSURE);
pressure_msb &= 0x07;
pressure_lsb = read_register16(PRESSURE_LSB);
wait(0.1);
drdy = 0;
wait(0.1);
pressure = ((pressure_msb<<16)| pressure_lsb);
pressure /= 4;
pressure /=3376.85f;
// Humidity
getHumidity = humidity;
getHumidity = getHumidity*38.12f;
// Determine Wind Condition
if (wSpeed < 1) { // No Wind
serialIO.printf("Current Condition is %s%d degrees. Pressure is %.2u and humidity is %.2f. Observed at %.3f, %.3f\r\n", forecastOutput, (int)temp_in, pressure, getHumidity, gps.latitude, gps.longitude);
} else if ((wSpeed >= 1) && (wSpeed < 5)) { // Calm Winds
serialIO.printf("Current Condition is %s%d degrees with calm winds. Pressure is %.2u and humidity is %.2f. Observed at %.3f, %.3f\r\n", forecastOutput, (int)temp_in, pressure, getHumidity, gps.latitude, gps.longitude);
} else {
if (w_direction < 22.5) serialIO.printf("Current Condition is %s%d degrees with wind traveling N at %d mph. Pressure is %.2u and humidity is %.2f. Observed at %.3f, %.3f\r\n", forecastOutput, (int)temp_in, (int)wSpeed, pressure, getHumidity, gps.latitude, gps.longitude);
else if ((w_direction >= 22.5) && (w_direction < 67.5)) serialIO.printf("Current Condition is %s%d degrees with wind traveling NE at %d mph. Pressure is %.2u and humidity is %.2f. Observed at %.3f, %.3f\r\n", forecastOutput, (int)temp_in, (int)wSpeed, pressure, getHumidity, gps.latitude, gps.longitude);
else if ((w_direction >= 67.5) && (w_direction < 112.5)) serialIO.printf("Current Condition is %s%d degrees with wind traveling E at %d mph. Pressure is %.2u and humidity is %.2f. Observed at %.3f, %.3f\r\n", forecastOutput, (int)temp_in, (int)wSpeed, pressure, getHumidity, gps.latitude, gps.longitude);
else if ((w_direction >= 112.5) && (w_direction < 157.5)) serialIO.printf("Current Condition is %s%d degrees with wind traveling SE at %d mph. Pressure is %.2u and humidity is %.2f. Observed at %.3f, %.3f\r\n", forecastOutput, (int)temp_in, (int)wSpeed, pressure, getHumidity, gps.latitude, gps.longitude);
else if ((w_direction >= 157.5) && (w_direction < 202.5)) serialIO.printf("Current Condition is %s%d degrees with wind traveling S at %d mph. Pressure is %.2u and humidity is %.2f. Observed at %.3f, %.3f\r\n", forecastOutput, (int)temp_in, (int)wSpeed, pressure, getHumidity, gps.latitude, gps.longitude);
else if ((w_direction >= 202.5) && (w_direction < 247.5)) serialIO.printf("Current Condition is %s%d degrees with wind traveling SW at %d mph. Pressure is %.2u and humidity is %.2f. Observed at %.3f, %.3f\r\n", forecastOutput, (int)temp_in, (int)wSpeed, pressure, getHumidity, gps.latitude, gps.longitude);
else if ((w_direction >= 247.5) && (w_direction < 292.5)) serialIO.printf("Current Condition is %s%d degrees with wind traveling W at %d mph. Pressure is %.2u and humidity is %.2f. Observed at %.3f, %.3f\r\n", forecastOutput, (int)temp_in, (int)wSpeed, pressure, getHumidity, gps.latitude, gps.longitude);
else if ((w_direction >= 292.5) && (w_direction < 337.5)) serialIO.printf("Current Condition is %s%d degrees with wind traveling NW at %d mph. Pressure is %.2u and humidity is %.2f. Observed at %.3f, %.3f\r\n", forecastOutput, (int)temp_in, (int)wSpeed, pressure, getHumidity, gps.latitude, gps.longitude);
else serialIO.printf("Current Condition is %s%d degrees with wind traveling N at %d mph. Pressure is %.2u and humidity is %.2f. Observed at %.3f, %.3f\r\n", forecastOutput, (int)temp_in, (int)wSpeed, pressure, getHumidity, gps.latitude, gps.longitude);
}
} else {
serialIO.printf("Information is currently unavailable, please try again later\r\n");
}
}
// Easter Eggs
// Hi
else if (!strncmp(messageBufferIncoming, "Hi", sizeof("Hi")-1)) {
serialIO.printf("Hello foolish person.\r\n");
}
// Do a barrel roll.
else if (!strncmp(messageBufferIncoming, "Do a barrel roll.", sizeof("Do a barrel roll.")-1)) {
serialIO.printf("Why don't you do a barrel roll?\r\n");
}
// Who created you?
else if (!strncmp(messageBufferIncoming, "Who created you?", sizeof("Who created you?")-1)) {
serialIO.printf("I was created by George P. Burdell.\r\n");
}
// Who are you?
else if (!strncmp(messageBufferIncoming, "Who are you?", sizeof("Who are you?")-1)) {
serialIO.printf("I am the Van Leer Weather Monitoring Station. I am truely a one-of-a-kind piece of technology.\r\n");
}
// Ping
else if (!strncmp(messageBufferIncoming, "Ping", sizeof("Ping")-1)) {
serialIO.printf("I am not a submarine.\r\n");
}
// Find Chuck Norris
else if (!strncmp(messageBufferIncoming, "Find Chuck Norris.", sizeof("Find Chuck Norris.")-1)) {
serialIO.printf("I am sorry but I cannot find Chuck Norris because I know that Chuck Norris cannot be found. Chuck Norris finds you.\r\n");
}
// Tell Me A Joke.
else if (!strncmp(messageBufferIncoming, "Tell me a joke.", sizeof("Tell me a joke.")-1)) {
serialIO.printf("Humans.\r\n");
}
// I need help !
else if (!strncmp(messageBufferIncoming, "I need help!.", sizeof("I need help!")-1)) {
serialIO.printf("I cannot help you, but you can get help from the one they call Ewout.\r\n");
}
// Invalid Command
else serialIO.printf("I am sorry but I do not understand your message. Please try again.\r\n");
serialIO.rxBufferFlush(); //Flush the Buffer
return;
}
int main() {
if ((LPC_WDT->WDMOD >> 2) & 1)
wdtLED = 1;
else wdtLED = 0;
// 30 second timeout on watchdog timer hardware
wdt.kick(10.0);
serialIO.baud(9600);
serialIO.format(8, Serial::None, 1);
serialIO.attach(&messageReceive, MODSERIAL::RxAutoDetect); //Attaches Interrupts
serialIO.autoDetectChar('\n'); //Set Detection to Line Feed
lcd.locate(0,0);
lcd.printf("Acquiring signal");
lcd.locate(0,1);
lcd.printf("from satellite..");
cs=1;
spi.frequency(500000); // the fastest of the sensor
spi.format(8, 0); // Use 8 bits of data
wait(0.5);
write_register(0x06,0x01);
wait(0.5);
write_register(0x03,0x0A);
wait(0.5);
wait(1.0);
//Continuous mode, periodic set/reset, 20Hz measurement rate.
compass.setOpMode(HMC6352_CONTINUOUS, 1, 20);
windSpeed.rise(&w_speed);
rainGauge.rise(&w_rain);
t.start(); // Heartbeat sensor time
state = 1; // Sets state to active
serialIO.printf("systemReady\r\n"); // Send System Ready Message
while (1) {
timeCount = t.read();
if (timeCount > 0) {
if (state == 1) {
// Detect a unusual reading from the GPS Antenna. If consecutive readings are not roughly the same, then it should be assumed that the GPS does not have a confident reading and to signal that it does not have a lock.
if ((((gps.latitude - prevLatitude > 5.0)||(gps.latitude - prevLatitude < -5.0))&&((gps.longitude - prevLongitude > 5.0)||(gps.longitude - prevLongitude < -5.0)))||(gps.numSat < 2)) {
GPSlock = 0;
// lcd.cls();
// lcd.locate(0,0);
// lcd.printf("GPS NOT LOCKED");
} else {
GPSlock = 1;
// lcd.cls();
// lcd.locate(0,0);
// lcd.printf("GPS LOCKED");
}
if (gps.latitude != prevLatitude) prevLatitude = gps.latitude;
if (gps.longitude != prevLongitude) prevLongitude = gps.longitude;
if (gps.sample()&&(gps.lock)&&(GPSlock)) {
lcd.cls();
lcd.locate(0,0);
lcd.printf("LAT: %f", gps.latitude);
lcd.locate(0,1);
lcd.printf("LON: %f", gps.longitude);
progressBarCount = 0;
} else {
lcd.cls();
lcd.locate(0,0);
if (progressBarCount > 19) {
progressBarCount = 0;
}
if (progressBarCount < 3) lcd.printf("Acquiring Signal");
else if (progressBarCount < 6) lcd.printf("from satellite ");
else if (progressBarCount < 8) lcd.printf("Are you inside? ");
else if (progressBarCount < 10) lcd.printf("Any skyscrapers?");
else if (progressBarCount < 13) lcd.printf("Acquiring Signal");
else if (progressBarCount < 16) lcd.printf("from satellite ");
else if (progressBarCount < 18) lcd.printf("Clouds overhead?");
else lcd.printf("Lost satellite? ");
lcd.locate(0,1);
switch (progressBarCount) {
case 0:
lcd.printf(" ");
break;
case 1:
lcd.printf("> ");
break;
case 2:
lcd.printf(">> ");
break;
case 3:
lcd.printf("<>> ");
break;
case 4:
lcd.printf("<<>> ");
break;
case 5:
lcd.printf(" <<>> ");
break;
case 6:
lcd.printf(" <<>> ");
break;
case 7:
lcd.printf(" <<>> ");
break;
case 8:
lcd.printf(" <<>> ");
break;
case 9:
lcd.printf(" <<>> ");
break;
case 10:
lcd.printf(" <<>> ");
break;
case 11:
lcd.printf(" <<>> ");
break;
case 12:
lcd.printf(" <<>> ");
break;
case 13:
lcd.printf(" <<>> ");
break;
case 14:
lcd.printf(" <<>> ");
break;
case 15:
lcd.printf(" <<>> ");
break;
case 16:
lcd.printf(" <<>>");
break;
case 17:
lcd.printf(" <<>");
break;
case 18:
lcd.printf(" <<");
break;
case 19:
lcd.printf(" <");
break;
}
progressBarCount++;
}
// Calculate the Wind Speed
wSpeed = speedCount * 1.492f;
speedCount = 0;
// Create a rolling average over 10 minutes to determine light and rain level
lightValue = light;
if (lightTimeCount < 600) {
lightCount = (((lightCount*lightTimeCount)+lightValue)/(lightTimeCount+1));
lightTimeCount++;
} else {
lightCount = (((lightCount*599)+lightValue)/600);
}
if (lightCount >= 0.7) {
lightLevel = 3;
} else if ((lightCount >= 0.5) && (lightCount < 0.7)) {
lightLevel = 2;
} else if ((lightCount >= 0.3) && (lightCount < 0.5)) {
lightLevel = 1;
} else {
lightLevel = 0;
}
// Increase Rain Interval
rainInterval++;
} else {
lcd.cls();
lcd.locate(0,0);
lcd.printf("PAUSED");
}
heartBeat = !heartBeat;
t.stop();
t.reset();
t.start();
}
wait(0.05);
wdt.kick();
}
return 0;
}