Michael Fischler
Weather Station using an mBed microcontroller and a Windows CE Device
Dependencies: TextLCD mbed HMC6352
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main.cpp
00001 #include "mbed.h" 00002 #include "GPS.h" 00003 #include "MODSERIAL.h" 00004 #include "TextLCD.h" 00005 #include "HMC6352.h" 00006 #define MESSAGE_BUFFER_SIZE 2048 00007 #define REVID 0x00 //ASIC Revision Number 00008 #define OPSTATUS 0x04 //Operation Status 00009 #define STATUS 0x07 //ASIC Status 00010 #define START 0x0A //Constant Readings 00011 #define PRESSURE 0x1F //Pressure 3 MSB 00012 #define PRESSURE_LSB 0x20 //Pressure 16 LSB 00013 #define TEMP 0x21 //16 bit temp 00014 00015 00016 extern "C" void mbed_reset(); // Allows for software resets 00017 00018 MODSERIAL serialIO(p28,p27); // RS-232 to PC (tx, rx) 00019 GPS gps(p13,p14); // RS-232 to GPS (tx, rx) 00020 TextLCD lcd(p23, p21, p22, p11, p12, p8); // rs, e, d4-d7 00021 HMC6352 compass(p9, p10); // I2C (sda, scl) 00022 SPI spi(p5, p6, p7); // mosi, miso, sclk 00023 DigitalOut cs(p25); // chip select 00024 DigitalOut drdy(p26); // DRDY pin 00025 AnalogIn humidity(p17); // Humidity Analog from Phidgets 00026 AnalogIn temperature2(p20); // Temperature Analog from Phidgets 00027 AnalogIn light(p15); // Light Analog Sensor 00028 InterruptIn windSpeed(p18); // Anemometer for Wind Speed 00029 AnalogIn windDirection(p19); // Wind Direction 00030 InterruptIn rainGauge(p16); // Rain Gauge Click 00031 DigitalOut wdtLED(LED4); // WatchDog Indicator 00032 DigitalOut heartBeat(LED1); // Heartbeat 00033 DigitalOut led2(LED2); // Test for message process 00034 char messageBufferIncoming[MESSAGE_BUFFER_SIZE]; 00035 char messageBufferOutgoing[MESSAGE_BUFFER_SIZE]; 00036 LocalFileSystem local("local"); 00037 Timer t; 00038 int timeCount; 00039 int state; 00040 int error; 00041 int progressBarCount = 0; 00042 int pressureDirection = 0; 00043 int rainLevel = 0; // Rain Level (3 = heavy rain, 2 = moderate rain, 1 = light rain, 0 = no rain) 00044 int rainInterval = 780; // Start at high count, as soon as the rain gauge clicks once, the level is based on the the rain interval. 00045 int rainCount = 0; 00046 int speedCount = 0; 00047 int lightLevel = 0; // light level (3 = sunny, 2 = partly cloudy, 1 = mostly cloudy, 0 = night) 00048 float lightCount = 0.0; 00049 float lightValue; 00050 int lightTimeCount = 1; 00051 bool GPSlock = 0; 00052 float prevLatitude = 0.0; 00053 float prevLongitude = 0.0; 00054 float prevPressure = 0.0; 00055 float getHumidity; 00056 float w_direction = 0.0; 00057 float wSpeed = 0.0; 00058 float getTemperature = 0.0; 00059 float rainAmount = 0.0; 00060 float temp_in; 00061 unsigned long pressure_lsb; 00062 unsigned long pressure_msb; 00063 unsigned long temp_pressure; 00064 unsigned long pressure; 00065 char forecastOutput[14]; // Forecast Output String 00066 char outputString[161]; // Output string for getWeather() 00067 00068 00069 // WATCHDOG FUNCTION 00070 00071 class Watchdog { 00072 public: 00073 // Load timeout value in watchdog timer and enable 00074 void kick(float s) { 00075 LPC_WDT->WDCLKSEL = 0x1; // Set CLK src to PCLK 00076 uint32_t clk = SystemCoreClock / 16; // WD has a fixed /4 prescaler, PCLK default is /4 00077 LPC_WDT->WDTC = s * (float)clk; 00078 LPC_WDT->WDMOD = 0x3; // Enabled and Reset 00079 kick(); 00080 } 00081 // "kick" or "feed" the dog - reset the watchdog timer 00082 // by writing this required bit pattern 00083 void kick() { 00084 LPC_WDT->WDFEED = 0xAA; 00085 LPC_WDT->WDFEED = 0x55; 00086 } 00087 }; 00088 00089 Watchdog wdt; 00090 00091 const float tbl_windvane[16][2] = { 00092 {0.0, 33000}, {22.5, 6570}, {45.0, 8200}, {67.5, 891}, 00093 {90.0, 1000}, {112.5, 688}, {135.0, 2200}, {157.5, 1410}, 00094 {180.0, 3900}, {202.5, 3140}, {225.0, 16000}, {247.5, 14120}, 00095 {270.0, 120000}, {292.5, 42120}, {315.0, 64900}, {337.5, 21880} 00096 }; 00097 00098 char read_register(char register_name) { 00099 register_name <<=2; 00100 register_name &= 0xFC; 00101 cs=0; //Select SPI device 00102 spi.write(register_name); //Send register location 00103 char register_value=spi.write(0x00); 00104 cs=1; 00105 return register_value; 00106 } 00107 00108 00109 void write_register(char register_name, char register_value) { 00110 register_name <<= 2; 00111 register_name |= 0x02; //le estamos diciendo que escriba 00112 cs=0; //Select SPI device 00113 spi.write(register_name); //Send register location 00114 spi.write(register_value); //Send value to record into register 00115 cs=1; 00116 } 00117 00118 float read_register16(char register_name) { 00119 register_name <<= 2; 00120 register_name &= 0xFC; //Read command 00121 cs=0; //Select SPI Device 00122 spi.write(register_name); //Write byte to device 00123 int in_byte1 = spi.write(0x00); 00124 int in_byte2 = spi.write(0x00); 00125 cs=1; 00126 float in_word= (in_byte1<<=8) | (in_byte2); 00127 return(in_word); 00128 } 00129 00130 void w_rain() { 00131 rainCount++; 00132 if (rainInterval < 129) { 00133 rainLevel = 3; // heavy rain 00134 } else if ((rainInterval >= 130) && (rainInterval < 390)) { 00135 rainLevel = 2; // moderate rain 00136 } else if ((rainInterval >= 391) && (rainInterval < 780)) { 00137 rainLevel = 1; // light rain 00138 } else { 00139 rainLevel = 0; // no rain 00140 } 00141 rainInterval = 0; 00142 } 00143 00144 void w_speed() { 00145 speedCount++; 00146 } 00147 00148 float wdirection() { 00149 int i; 00150 float v; 00151 00152 v = windDirection * 3.3f; // V 00153 v = v / ((3.3f - v) / 10000.0f); // ohm 00154 for (i = 0; i < 16; i ++) { 00155 if (v > tbl_windvane[i][1] * 0.9 && v < tbl_windvane[i][1] * 1.1) { 00156 return tbl_windvane[i][0]; 00157 } 00158 } 00159 return 0; 00160 } 00161 00162 00163 void messageReceive(MODSERIAL_IRQ_INFO *q) { 00164 MODSERIAL *sys = q->serial; 00165 sys->move(messageBufferIncoming, MESSAGE_BUFFER_SIZE); 00166 00167 00168 00169 // Routines for Received Commands 00170 00171 //Testing Routines 00172 if (!strncmp(messageBufferIncoming, "LED2:1", sizeof("LED2:1")-1)) led2 = 1; // For testing 00173 else if (!strncmp(messageBufferIncoming, "LED2:0", sizeof("LED2:0")-1)) led2 = 0; // For testing 00174 else if (!strncmp(messageBufferIncoming, "LED2:2", sizeof("LED2:2")-1)) led2 = !led2; // For testing 00175 00176 // Reset mBed microcontroller 00177 else if (!strncmp(messageBufferIncoming, "reset", sizeof("reset")-1)) mbed_reset(); // Force Reset of mBed microcontroller 00178 00179 // Set State of mbed microcontroller 00180 else if (!strncmp(messageBufferIncoming, "setState(Active)", sizeof("setState(Active)")-1)) { 00181 state = 1; // Set State of Program 00182 serialIO.printf("State set to: Active\r\n"); 00183 } else if (!strncmp(messageBufferIncoming, "setState(Paused)", sizeof("setState(Paused)")-1)) { 00184 state = 0; // Set State of Program 00185 serialIO.printf("State set to: Paused\r\n"); 00186 } 00187 00188 // Status of mbed microcontroller 00189 else if (!strncmp(messageBufferIncoming, "getStatus()", sizeof("getStatus()")-1)) { 00190 if (state == 0) serialIO.printf("Paused\r\n"); 00191 if (state == 1) serialIO.printf("Active\r\n"); 00192 // Extra Messages 00193 } 00194 00195 // Error Messages 00196 else if (!strncmp(messageBufferIncoming, "getErrorMsg()", sizeof("getErrorMsg()")-1)) { 00197 if (error == 0) serialIO.printf("No Errors\r\n"); 00198 // Extra Messages 00199 } 00200 00201 // GPS Location 00202 else if (!strncmp(messageBufferIncoming, "getLocation()", sizeof("getLocation()")-1)) { 00203 // Get Location 00204 if (state == 1) { 00205 if ((gps.lock)&&(GPSlock)) { 00206 serialIO.printf("Location = %.3f, %.3f\r\n", gps.latitude, gps.longitude); 00207 } else { 00208 serialIO.printf("Location = Not Locked\r\n"); 00209 } 00210 } else { 00211 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00212 } 00213 } 00214 00215 // GPS Altitude 00216 else if (!strncmp(messageBufferIncoming, "getAltitude()", sizeof("getAltitude()")-1)) { 00217 // Get Altitude 00218 if (state == 1) { 00219 if ((gps.lock)&&(GPSlock)) { 00220 serialIO.printf("Altitude = %.3f meters (MSL)\r\n", gps.altitude); 00221 } else { 00222 serialIO.printf("Altitude = Not Locked\r\n"); 00223 } 00224 } else { 00225 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00226 } 00227 } 00228 00229 // GPS Date 00230 else if (!strncmp(messageBufferIncoming, "getGPSDate()", sizeof("getGPSDate()")-1)) { 00231 // Get Date 00232 if (state == 1) { 00233 if ((gps.lock)&&(GPSlock)) { 00234 serialIO.printf("Date = %f\r\n", gps.GPSdate); 00235 } else { 00236 serialIO.printf("Date = Not Locked\r\n"); 00237 } 00238 } else { 00239 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00240 } 00241 } 00242 00243 // GPS Time 00244 else if (!strncmp(messageBufferIncoming, "getGPSTime()", sizeof("getGPSTime()")-1)) { 00245 // Get Time 00246 if (state == 1) { 00247 if ((gps.lock)&&(GPSlock)) { 00248 serialIO.printf("Time = %.3f\r\n", gps.GPStime); 00249 } else { 00250 serialIO.printf("Time = Not Locked\r\n"); 00251 } 00252 } else { 00253 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00254 } 00255 } 00256 00257 // GPS Lock 00258 else if (!strncmp(messageBufferIncoming, "getGPSLock()", sizeof("getGPSLock()")-1)) { 00259 // Get Lock 00260 if (state == 1) { 00261 if ((gps.lock)&&(GPSlock)) { 00262 serialIO.printf("Locked\r\n"); 00263 } else { 00264 serialIO.printf("Not Locked\r\n"); 00265 } 00266 } else { 00267 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00268 } 00269 } 00270 00271 // GPS Direction 00272 else if (!strncmp(messageBufferIncoming, "getDirection()", sizeof("getDirection()")-1)) { 00273 // Get Direction 00274 if (state == 1) { 00275 serialIO.printf("Direction = %.2f degrees\r\n", (compass.sample() / 10.0)); 00276 } else { 00277 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00278 } 00279 } 00280 00281 // Temperature 00282 else if (!strncmp(messageBufferIncoming, "getTemperature()", sizeof("getTemperature()")-1)) { 00283 if (state == 1) { 00284 // Get Temperature 00285 drdy = 1; 00286 wait(0.1); 00287 temp_in = read_register16(TEMP); 00288 wait(0.1); 00289 drdy = 0; 00290 wait(0.1); 00291 temp_in = (temp_in*3.3)/5; // Calibration offset 00292 temp_in = ((temp_in*9) / 100) + 32; // Convert to fahrenheit 00293 serialIO.printf("Temperature = %.2f degrees F\r\n", temp_in); 00294 } else { 00295 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00296 } 00297 } 00298 00299 // Humidity 00300 else if (!strncmp(messageBufferIncoming, "getHumidity()", sizeof("getHumidity()")-1)) { 00301 if (state == 1) { 00302 // Get Humidity 00303 getHumidity = humidity; 00304 getHumidity = getHumidity*38.12f; 00305 serialIO.printf("Humidity = %.2f%%\r\n", getHumidity); 00306 } else { 00307 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00308 } 00309 } 00310 00311 // Pressure 00312 else if (!strncmp(messageBufferIncoming, "getPressure()", sizeof("getPressure()")-1)) { 00313 // Get Pressure 00314 if (state == 1) { 00315 drdy = 1; 00316 wait(0.1); 00317 pressure_msb = read_register(PRESSURE); 00318 pressure_msb &= 0x07; 00319 pressure_lsb = read_register16(PRESSURE_LSB); 00320 wait(0.1); 00321 drdy = 0; 00322 wait(0.1); 00323 pressure = ((pressure_msb<<16)| pressure_lsb); 00324 if (pressure != prevPressure) { 00325 if (prevPressure < pressure - 2000) { 00326 pressureDirection = 1; // Pressure is increasing 00327 prevPressure = pressure; 00328 pressure /= 4; // Convert to pascals 00329 pressure /= 3376.85f; // Convert from pascals to inches of mercury (60 deg F) 00330 serialIO.printf("Pressure = %.2u, increasing\r\n", pressure); 00331 } else if (prevPressure > pressure + 2000) { 00332 pressureDirection = -1; // Pressure is decreasing 00333 prevPressure = pressure; 00334 pressure /= 4; // Convert to pascals 00335 pressure /= 3376.85f; // Convert from pascals to inches of mercury (60 deg F) 00336 serialIO.printf("Pressure = %.2u, decreasing\r\n", pressure); 00337 } else { 00338 pressureDirection = 0; // Pressure is relatively unchanged 00339 pressure /= 4; // Convert to pascals 00340 pressure /= 3376.85f; // Convert from pascals to inches of mercury (60 deg F) 00341 serialIO.printf("Pressure = %.2u, no change\r\n", pressure); 00342 } 00343 } 00344 } else { 00345 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00346 } 00347 } 00348 00349 // Light 00350 else if (!strncmp(messageBufferIncoming, "getLight()", sizeof("getLight()")-1)) { 00351 if (state == 1) { 00352 // Get Light 00353 serialIO.printf("Light = %.2f\r\n", lightValue); 00354 } else { 00355 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00356 } 00357 } 00358 00359 // Light Level 00360 else if (!strncmp(messageBufferIncoming, "getLightLevel()", sizeof("getLightLevel()")-1)) { 00361 // Get Light Level 00362 if (state == 1) { 00363 switch (lightLevel) { 00364 case 0: 00365 serialIO.printf("It is Dark Outside.\r\n"); 00366 break; 00367 case 1: 00368 serialIO.printf("It is Mostly Cloudy.\r\n"); 00369 break; 00370 case 2: 00371 serialIO.printf("It is Partly Cloudy.\r\n"); 00372 break; 00373 case 3: 00374 serialIO.printf("It is Mostly Sunny.\r\n"); 00375 break; 00376 default: 00377 serialIO.printf("Unknown.\r\n"); 00378 } 00379 } else { 00380 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00381 } 00382 } 00383 00384 // Wind Direction 00385 else if (!strncmp(messageBufferIncoming, "getWindDirection()", sizeof("getWindDirection()")-1)) { 00386 // Get Wind Direction 00387 if (state == 1) { 00388 w_direction = wdirection(); 00389 w_direction = w_direction + (compass.sample() / 10.0); // Offset that the unit is no aligned by using compass 00390 if (w_direction > 360) w_direction = w_direction - 360; 00391 // Convert to cardinal direction 00392 if (w_direction < 22.5) serialIO.printf("Wind Direction = N\r\n"); 00393 else if ((w_direction >= 22.5) && (w_direction < 67.5)) serialIO.printf("Wind Direction = NE\r\n"); 00394 else if ((w_direction >= 67.5) && (w_direction < 112.5)) serialIO.printf("Wind Direction = E\r\n"); 00395 else if ((w_direction >= 112.5) && (w_direction < 157.5)) serialIO.printf("Wind Direction = SE\r\n"); 00396 else if ((w_direction >= 157.5) && (w_direction < 202.5)) serialIO.printf("Wind Direction = S\r\n"); 00397 else if ((w_direction >= 202.5) && (w_direction < 247.5)) serialIO.printf("Wind Direction = SW\r\n"); 00398 else if ((w_direction >= 247.5) && (w_direction < 292.5)) serialIO.printf("Wind Direction = W\r\n"); 00399 else if ((w_direction >= 292.5) && (w_direction < 337.5)) serialIO.printf("Wind Direction = NW\r\n"); 00400 else serialIO.printf("Wind Direction = N\r\n"); 00401 00402 } else { 00403 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00404 } 00405 } 00406 00407 // Wind Speed 00408 else if (!strncmp(messageBufferIncoming, "getWindSpeed()", sizeof("getWindSpeed()")-1)) { 00409 // Get Wind Speed 00410 if (state == 1) { 00411 serialIO.printf("Wind Speed = %.2f mph\r\n", (wSpeed)); 00412 } else { 00413 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00414 } 00415 } 00416 00417 // Wind 00418 else if (!strncmp(messageBufferIncoming, "getWind()", sizeof("getWind()")-1)) { 00419 // Get Wind Direction 00420 if (state == 1) { 00421 if (wSpeed < 1) { 00422 serialIO.printf("There is no wind.\r\n"); 00423 } else if ((wSpeed >= 1) && (wSpeed < 5)) { 00424 serialIO.printf("There are only calm winds.\r\n"); 00425 } else { 00426 w_direction = wdirection(); 00427 w_direction = w_direction + (compass.sample() / 10.0); // Offset that the unit is no aligned by using compass 00428 if (w_direction > 360) w_direction = w_direction - 360; 00429 // Convert to cardinal direction 00430 if (w_direction < 22.5) serialIO.printf("Wind traveling N at %.2f mph\r\n", wSpeed); 00431 else if ((w_direction >= 22.5) && (w_direction < 67.5)) serialIO.printf("Wind traveling NE at %.2f mph\r\n", wSpeed); 00432 else if ((w_direction >= 67.5) && (w_direction < 112.5)) serialIO.printf("Wind traveling E at %.2f mph\r\n", wSpeed); 00433 else if ((w_direction >= 112.5) && (w_direction < 157.5)) serialIO.printf("Wind traveling SE at %.2f mph\r\n", wSpeed); 00434 else if ((w_direction >= 157.5) && (w_direction < 202.5)) serialIO.printf("Wind traveling S at %.2f mph\r\n", wSpeed); 00435 else if ((w_direction >= 202.5) && (w_direction < 247.5)) serialIO.printf("Wind traveling SW at %.2f mph\r\n", wSpeed); 00436 else if ((w_direction >= 247.5) && (w_direction < 292.5)) serialIO.printf("Wind traveling W at %.2f mph\r\n", wSpeed); 00437 else if ((w_direction >= 292.5) && (w_direction < 337.5)) serialIO.printf("Wind traveling NW at %.2f mph\r\n", wSpeed); 00438 else serialIO.printf("Wind traveling N at %.2f mph\r\n", wSpeed); 00439 } 00440 } else { 00441 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00442 } 00443 } 00444 00445 // Rain Amount 00446 else if (!strncmp(messageBufferIncoming, "getRainAmount()", sizeof("getRainAmount()")-1)) { 00447 // Get Rain Amount 00448 if (state == 1) { 00449 rainAmount = rainCount * 0.011f; 00450 serialIO.printf("Rain Amount = %f inches today\r\n", (rainAmount)); 00451 } else { 00452 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00453 } 00454 } 00455 00456 // Current Weather Command 00457 else if (!strncmp(messageBufferIncoming, "getWeather()", sizeof("getWeather()")-1)) { 00458 // Message Sample: Current Condition is (forecast) at (temperature) degrees (wind condition). Pressure is (pressure) and humidity is (humidity). Observed at (location). 00459 if (state == 1) { 00460 //Predict conditions based on data collected from rain gauge and light sensor. 00461 if (rainLevel == 3) { 00462 if (temp_in >= 37.0) { // Heavy Rain 00463 strcpy(forecastOutput, "heavy rain at "); 00464 } else if ((temp_in < 37.0) && (temp_in > 32.0)) { // Heavy Mix 00465 strcpy(forecastOutput, "heavy rain/snow at "); 00466 } else if (temp_in <= 32.0) { // Heavy Snow 00467 strcpy(forecastOutput, "heavy snow at "); 00468 } 00469 } else if (rainLevel == 2) { 00470 if (temp_in >= 37.0) { // Moderate Rain 00471 strcpy(forecastOutput, "rain showers at "); 00472 } else if ((temp_in < 37.0) && (temp_in > 32.0)) { // Moderate Mix 00473 strcpy(forecastOutput, "rain/snow showers at "); 00474 } else if (temp_in <= 32.0) { // Moderate Snow 00475 strcpy(forecastOutput, "snow showers at "); 00476 } 00477 } else if (rainLevel == 1) { 00478 if (temp_in >= 37.0) { // Light Rain 00479 strcpy(forecastOutput, "light rain at "); 00480 } else if ((temp_in < 37.0) && (temp_in > 32.0)) { // Light Mix 00481 strcpy(forecastOutput, "light rain/snow at "); 00482 } else if (temp_in <= 32.0) { // Light Snow 00483 strcpy(forecastOutput, "snow flurries at "); 00484 } 00485 } else if (rainLevel == 0) { // No Precipitation 00486 if (lightLevel == 0) { // Dark Skies (Nighttime) 00487 strcpy(forecastOutput, "night skies at "); 00488 } else if (lightLevel == 1) { // Mostly Cloudly 00489 strcpy(forecastOutput, "mostly cloudy at "); 00490 } else if (lightLevel == 2) { // Partly Cloudy 00491 strcpy(forecastOutput, "partly cloudy at "); 00492 } else { // Mostly Sunny 00493 strcpy(forecastOutput, "mostly sunny at "); 00494 } 00495 } 00496 00497 00498 // Temperature 00499 drdy = 1; 00500 wait(0.1); 00501 temp_in = read_register16(TEMP); 00502 wait(0.1); 00503 drdy = 0; 00504 wait(0.1); 00505 temp_in = (temp_in*3.3)/5; // Calibration offset 00506 temp_in = ((temp_in*9) / 100) + 32; // Convert to fahrenheit 00507 00508 // Pressure 00509 drdy = 1; 00510 wait(0.1); 00511 pressure_msb = read_register(PRESSURE); 00512 pressure_msb &= 0x07; 00513 pressure_lsb = read_register16(PRESSURE_LSB); 00514 wait(0.1); 00515 drdy = 0; 00516 wait(0.1); 00517 pressure = ((pressure_msb<<16)| pressure_lsb); 00518 pressure /= 4; 00519 pressure /=3376.85f; 00520 00521 // Humidity 00522 getHumidity = humidity; 00523 getHumidity = getHumidity*38.12f; 00524 00525 // Determine Wind Condition 00526 00527 if (wSpeed < 1) { // No Wind 00528 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); 00529 } else if ((wSpeed >= 1) && (wSpeed < 5)) { // Calm Winds 00530 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); 00531 } else { 00532 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); 00533 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); 00534 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); 00535 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); 00536 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); 00537 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); 00538 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); 00539 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); 00540 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); 00541 } 00542 00543 } else { 00544 serialIO.printf("Information is currently unavailable, please try again later\r\n"); 00545 } 00546 } 00547 00548 // Easter Eggs 00549 00550 // Hi 00551 else if (!strncmp(messageBufferIncoming, "Hi", sizeof("Hi")-1)) { 00552 serialIO.printf("Hello foolish person.\r\n"); 00553 } 00554 // Do a barrel roll. 00555 else if (!strncmp(messageBufferIncoming, "Do a barrel roll.", sizeof("Do a barrel roll.")-1)) { 00556 serialIO.printf("Why don't you do a barrel roll?\r\n"); 00557 } 00558 // Who created you? 00559 else if (!strncmp(messageBufferIncoming, "Who created you?", sizeof("Who created you?")-1)) { 00560 serialIO.printf("I was created by George P. Burdell.\r\n"); 00561 } 00562 // Who are you? 00563 else if (!strncmp(messageBufferIncoming, "Who are you?", sizeof("Who are you?")-1)) { 00564 serialIO.printf("I am the Van Leer Weather Monitoring Station. I am truely a one-of-a-kind piece of technology.\r\n"); 00565 } 00566 // Ping 00567 else if (!strncmp(messageBufferIncoming, "Ping", sizeof("Ping")-1)) { 00568 serialIO.printf("I am not a submarine.\r\n"); 00569 } 00570 // Find Chuck Norris 00571 else if (!strncmp(messageBufferIncoming, "Find Chuck Norris.", sizeof("Find Chuck Norris.")-1)) { 00572 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"); 00573 } 00574 // Tell Me A Joke. 00575 else if (!strncmp(messageBufferIncoming, "Tell me a joke.", sizeof("Tell me a joke.")-1)) { 00576 serialIO.printf("Humans.\r\n"); 00577 } 00578 // I need help ! 00579 else if (!strncmp(messageBufferIncoming, "I need help!.", sizeof("I need help!")-1)) { 00580 serialIO.printf("I cannot help you, but you can get help from the one they call Ewout.\r\n"); 00581 } 00582 00583 // Invalid Command 00584 else serialIO.printf("I am sorry but I do not understand your message. Please try again.\r\n"); 00585 00586 serialIO.rxBufferFlush(); //Flush the Buffer 00587 return; 00588 } 00589 00590 00591 int main() { 00592 00593 if ((LPC_WDT->WDMOD >> 2) & 1) 00594 wdtLED = 1; 00595 else wdtLED = 0; 00596 00597 // 30 second timeout on watchdog timer hardware 00598 wdt.kick(10.0); 00599 00600 serialIO.baud(9600); 00601 serialIO.format(8, Serial::None, 1); 00602 serialIO.attach(&messageReceive, MODSERIAL::RxAutoDetect); //Attaches Interrupts 00603 serialIO.autoDetectChar('\n'); //Set Detection to Line Feed 00604 00605 lcd.locate(0,0); 00606 lcd.printf("Acquiring signal"); 00607 lcd.locate(0,1); 00608 lcd.printf("from satellite.."); 00609 00610 cs=1; 00611 spi.frequency(500000); // the fastest of the sensor 00612 spi.format(8, 0); // Use 8 bits of data 00613 wait(0.5); 00614 00615 write_register(0x06,0x01); 00616 wait(0.5); 00617 00618 write_register(0x03,0x0A); 00619 wait(0.5); 00620 00621 00622 wait(1.0); 00623 00624 //Continuous mode, periodic set/reset, 20Hz measurement rate. 00625 compass.setOpMode(HMC6352_CONTINUOUS, 1, 20); 00626 00627 windSpeed.rise(&w_speed); 00628 rainGauge.rise(&w_rain); 00629 00630 t.start(); // Heartbeat sensor time 00631 state = 1; // Sets state to active 00632 00633 serialIO.printf("systemReady\r\n"); // Send System Ready Message 00634 00635 00636 while (1) { 00637 00638 00639 timeCount = t.read(); 00640 00641 if (timeCount > 0) { 00642 if (state == 1) { 00643 // 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. 00644 if ((((gps.latitude - prevLatitude > 5.0)||(gps.latitude - prevLatitude < -5.0))&&((gps.longitude - prevLongitude > 5.0)||(gps.longitude - prevLongitude < -5.0)))||(gps.numSat < 2)) { 00645 GPSlock = 0; 00646 // lcd.cls(); 00647 // lcd.locate(0,0); 00648 // lcd.printf("GPS NOT LOCKED"); 00649 } else { 00650 GPSlock = 1; 00651 // lcd.cls(); 00652 // lcd.locate(0,0); 00653 // lcd.printf("GPS LOCKED"); 00654 } 00655 00656 if (gps.latitude != prevLatitude) prevLatitude = gps.latitude; 00657 if (gps.longitude != prevLongitude) prevLongitude = gps.longitude; 00658 00659 if (gps.sample()&&(gps.lock)&&(GPSlock)) { 00660 lcd.cls(); 00661 lcd.locate(0,0); 00662 lcd.printf("LAT: %f", gps.latitude); 00663 lcd.locate(0,1); 00664 lcd.printf("LON: %f", gps.longitude); 00665 progressBarCount = 0; 00666 } else { 00667 lcd.cls(); 00668 lcd.locate(0,0); 00669 if (progressBarCount > 19) { 00670 progressBarCount = 0; 00671 } 00672 if (progressBarCount < 3) lcd.printf("Acquiring Signal"); 00673 else if (progressBarCount < 6) lcd.printf("from satellite "); 00674 else if (progressBarCount < 8) lcd.printf("Are you inside? "); 00675 else if (progressBarCount < 10) lcd.printf("Any skyscrapers?"); 00676 else if (progressBarCount < 13) lcd.printf("Acquiring Signal"); 00677 else if (progressBarCount < 16) lcd.printf("from satellite "); 00678 else if (progressBarCount < 18) lcd.printf("Clouds overhead?"); 00679 else lcd.printf("Lost satellite? "); 00680 lcd.locate(0,1); 00681 switch (progressBarCount) { 00682 case 0: 00683 lcd.printf(" "); 00684 break; 00685 case 1: 00686 lcd.printf("> "); 00687 break; 00688 case 2: 00689 lcd.printf(">> "); 00690 break; 00691 case 3: 00692 lcd.printf("<>> "); 00693 break; 00694 case 4: 00695 lcd.printf("<<>> "); 00696 break; 00697 case 5: 00698 lcd.printf(" <<>> "); 00699 break; 00700 case 6: 00701 lcd.printf(" <<>> "); 00702 break; 00703 case 7: 00704 lcd.printf(" <<>> "); 00705 break; 00706 case 8: 00707 lcd.printf(" <<>> "); 00708 break; 00709 case 9: 00710 lcd.printf(" <<>> "); 00711 break; 00712 case 10: 00713 lcd.printf(" <<>> "); 00714 break; 00715 case 11: 00716 lcd.printf(" <<>> "); 00717 break; 00718 case 12: 00719 lcd.printf(" <<>> "); 00720 break; 00721 case 13: 00722 lcd.printf(" <<>> "); 00723 break; 00724 case 14: 00725 lcd.printf(" <<>> "); 00726 break; 00727 case 15: 00728 lcd.printf(" <<>> "); 00729 break; 00730 case 16: 00731 lcd.printf(" <<>>"); 00732 break; 00733 case 17: 00734 lcd.printf(" <<>"); 00735 break; 00736 case 18: 00737 lcd.printf(" <<"); 00738 break; 00739 case 19: 00740 lcd.printf(" <"); 00741 break; 00742 } 00743 progressBarCount++; 00744 00745 } 00746 // Calculate the Wind Speed 00747 wSpeed = speedCount * 1.492f; 00748 speedCount = 0; 00749 00750 // Create a rolling average over 10 minutes to determine light and rain level 00751 lightValue = light; 00752 if (lightTimeCount < 600) { 00753 lightCount = (((lightCount*lightTimeCount)+lightValue)/(lightTimeCount+1)); 00754 00755 lightTimeCount++; 00756 } else { 00757 lightCount = (((lightCount*599)+lightValue)/600); 00758 } 00759 if (lightCount >= 0.7) { 00760 lightLevel = 3; 00761 } else if ((lightCount >= 0.5) && (lightCount < 0.7)) { 00762 lightLevel = 2; 00763 } else if ((lightCount >= 0.3) && (lightCount < 0.5)) { 00764 lightLevel = 1; 00765 } else { 00766 lightLevel = 0; 00767 } 00768 00769 // Increase Rain Interval 00770 rainInterval++; 00771 00772 } else { 00773 lcd.cls(); 00774 lcd.locate(0,0); 00775 lcd.printf("PAUSED"); 00776 } 00777 00778 heartBeat = !heartBeat; 00779 t.stop(); 00780 t.reset(); 00781 t.start(); 00782 } 00783 00784 wait(0.05); 00785 wdt.kick(); 00786 } 00787 return 0; 00788 }
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