Weather station project updated display and sensors
Dependencies: BH1750 BMP280 DS1820 HMC5983 Helios MAX17043 MPU6050 SHTx SSD1306_I2C A4988_stepper mbed
Fork of weather_station_project by
main.cpp@0:e42837021e1a, 2018-07-01 (annotated)
- Committer:
- daniel_davvid
- Date:
- Sun Jul 01 12:11:00 2018 +0000
- Revision:
- 0:e42837021e1a
- Child:
- 1:f20e1ea0302e
Weather station project based on multiple sensors
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
daniel_davvid | 0:e42837021e1a | 1 | #include "mbed.h" |
daniel_davvid | 0:e42837021e1a | 2 | |
daniel_davvid | 0:e42837021e1a | 3 | #ifndef M_PI |
daniel_davvid | 0:e42837021e1a | 4 | #define M_PI 3.1415926535897932384626433832795028841971693993751058209749445923078164 |
daniel_davvid | 0:e42837021e1a | 5 | #endif |
daniel_davvid | 0:e42837021e1a | 6 | // DS1820 temp sens pin |
daniel_davvid | 0:e42837021e1a | 7 | #define MAX_PROBES 16 |
daniel_davvid | 0:e42837021e1a | 8 | #define DATA_PIN A0 |
daniel_davvid | 0:e42837021e1a | 9 | //#define MULTIPLE_PROBES |
daniel_davvid | 0:e42837021e1a | 10 | |
daniel_davvid | 0:e42837021e1a | 11 | #include "BH1750.h" //Light sensor lib |
daniel_davvid | 0:e42837021e1a | 12 | #include "BMP280.h" //Pressure sensor lib |
daniel_davvid | 0:e42837021e1a | 13 | #include "DS1820.h" //Temp sensor lib (One wire) |
daniel_davvid | 0:e42837021e1a | 14 | #include "Helios.h" //Sun tracking algorithm |
daniel_davvid | 0:e42837021e1a | 15 | #include "HMC5983.h" //Compass lib |
daniel_davvid | 0:e42837021e1a | 16 | #include "MAX17043.h" //Fuel gauge sens lib |
daniel_davvid | 0:e42837021e1a | 17 | #include "MPU6050.h" //Accelerometer sensor lib |
daniel_davvid | 0:e42837021e1a | 18 | #include "SHTx/sht15.hpp" //Humidity sens lib |
daniel_davvid | 0:e42837021e1a | 19 | #include "SSD1306.h" //Display lib |
daniel_davvid | 0:e42837021e1a | 20 | #include "stepper.h" //Stepping motor lib. |
daniel_davvid | 0:e42837021e1a | 21 | |
daniel_davvid | 0:e42837021e1a | 22 | Serial pc(USBTX, USBRX); |
daniel_davvid | 0:e42837021e1a | 23 | //Digital pins |
daniel_davvid | 0:e42837021e1a | 24 | |
daniel_davvid | 0:e42837021e1a | 25 | //Analog pins |
daniel_davvid | 0:e42837021e1a | 26 | AnalogIn waterLevel(A1); |
daniel_davvid | 0:e42837021e1a | 27 | AnalogIn currentData(A2); |
daniel_davvid | 0:e42837021e1a | 28 | |
daniel_davvid | 0:e42837021e1a | 29 | // Stepper motor setup |
daniel_davvid | 0:e42837021e1a | 30 | stepper stpCirc(PA_12, NC, NC, NC, PB_1, PB_2); |
daniel_davvid | 0:e42837021e1a | 31 | stepper stpAngl(PA_11, NC, NC, NC, PB_14, PB_15); |
daniel_davvid | 0:e42837021e1a | 32 | |
daniel_davvid | 0:e42837021e1a | 33 | //DS1820 setup |
daniel_davvid | 0:e42837021e1a | 34 | DS1820* probe[MAX_PROBES]; |
daniel_davvid | 0:e42837021e1a | 35 | |
daniel_davvid | 0:e42837021e1a | 36 | //Helios algorithm |
daniel_davvid | 0:e42837021e1a | 37 | Helios sun; |
daniel_davvid | 0:e42837021e1a | 38 | |
daniel_davvid | 0:e42837021e1a | 39 | // I2C communication setup |
daniel_davvid | 0:e42837021e1a | 40 | I2C i2c1(D14, D15); |
daniel_davvid | 0:e42837021e1a | 41 | I2C i2c2(D3, D6); |
daniel_davvid | 0:e42837021e1a | 42 | I2C i2c3(D5, D7); |
daniel_davvid | 0:e42837021e1a | 43 | |
daniel_davvid | 0:e42837021e1a | 44 | // Maybe change the format |
daniel_davvid | 0:e42837021e1a | 45 | SHTx::SHT15 sensor(D5, D7); |
daniel_davvid | 0:e42837021e1a | 46 | |
daniel_davvid | 0:e42837021e1a | 47 | //I2C 1 sensors |
daniel_davvid | 0:e42837021e1a | 48 | BH1750 bh(i2c1); |
daniel_davvid | 0:e42837021e1a | 49 | BMP280 bmp(i2c1); |
daniel_davvid | 0:e42837021e1a | 50 | HMC5983 compass(i2c1); |
daniel_davvid | 0:e42837021e1a | 51 | MAX17043 fuelGauge(i2c1); |
daniel_davvid | 0:e42837021e1a | 52 | SSD1306 lcd1(&i2c1, 0x78); |
daniel_davvid | 0:e42837021e1a | 53 | |
daniel_davvid | 0:e42837021e1a | 54 | //I2C 2 sensors |
daniel_davvid | 0:e42837021e1a | 55 | SSD1306 lcd2(&i2c2, 0x78); |
daniel_davvid | 0:e42837021e1a | 56 | MPU6050 mpu(i2c2); |
daniel_davvid | 0:e42837021e1a | 57 | |
daniel_davvid | 0:e42837021e1a | 58 | // Timers |
daniel_davvid | 0:e42837021e1a | 59 | Timer displayTimer; |
daniel_davvid | 0:e42837021e1a | 60 | Timer stepperRelaxTimer; |
daniel_davvid | 0:e42837021e1a | 61 | Timer compassPollTimer; |
daniel_davvid | 0:e42837021e1a | 62 | |
daniel_davvid | 0:e42837021e1a | 63 | //Accel |
daniel_davvid | 0:e42837021e1a | 64 | //not needed? |
daniel_davvid | 0:e42837021e1a | 65 | Vector rawGyro, normGyro; |
daniel_davvid | 0:e42837021e1a | 66 | Vector rawAccel, normAccel; |
daniel_davvid | 0:e42837021e1a | 67 | // |
daniel_davvid | 0:e42837021e1a | 68 | Vector scaledAccel; |
daniel_davvid | 0:e42837021e1a | 69 | float vertG; |
daniel_davvid | 0:e42837021e1a | 70 | //Compass |
daniel_davvid | 0:e42837021e1a | 71 | |
daniel_davvid | 0:e42837021e1a | 72 | double desiredAngle, actualAngle; |
daniel_davvid | 0:e42837021e1a | 73 | |
daniel_davvid | 0:e42837021e1a | 74 | //Functions |
daniel_davvid | 0:e42837021e1a | 75 | double angleDiff(double a, double b); |
daniel_davvid | 0:e42837021e1a | 76 | int waterLevel(); |
daniel_davvid | 0:e42837021e1a | 77 | int pirDetect(); |
daniel_davvid | 0:e42837021e1a | 78 | float curentData(); |
daniel_davvid | 0:e42837021e1a | 79 | |
daniel_davvid | 0:e42837021e1a | 80 | int main() |
daniel_davvid | 0:e42837021e1a | 81 | { |
daniel_davvid | 0:e42837021e1a | 82 | //Helios algorithm setup |
daniel_davvid | 0:e42837021e1a | 83 | time_t seconds; |
daniel_davvid | 0:e42837021e1a | 84 | char buffer[32]; |
daniel_davvid | 0:e42837021e1a | 85 | set_time(1529836800); |
daniel_davvid | 0:e42837021e1a | 86 | |
daniel_davvid | 0:e42837021e1a | 87 | //Stepper enable |
daniel_davvid | 0:e42837021e1a | 88 | stpCirc.enable(); |
daniel_davvid | 0:e42837021e1a | 89 | stpAngl.enable(); |
daniel_davvid | 0:e42837021e1a | 90 | //SHT15 setup |
daniel_davvid | 0:e42837021e1a | 91 | sensor.setOTPReload(false); |
daniel_davvid | 0:e42837021e1a | 92 | sensor.setResolution(true); |
daniel_davvid | 0:e42837021e1a | 93 | |
daniel_davvid | 0:e42837021e1a | 94 | // DS1820 setup |
daniel_davvid | 0:e42837021e1a | 95 | int num_devices = 0; |
daniel_davvid | 0:e42837021e1a | 96 | while(DS1820::unassignedProbe(DATA_PIN)) { |
daniel_davvid | 0:e42837021e1a | 97 | probe[num_devices] = new DS1820(DATA_PIN); |
daniel_davvid | 0:e42837021e1a | 98 | num_devices++; |
daniel_davvid | 0:e42837021e1a | 99 | if (num_devices == MAX_PROBES) |
daniel_davvid | 0:e42837021e1a | 100 | break; |
daniel_davvid | 0:e42837021e1a | 101 | //MPU setup |
daniel_davvid | 0:e42837021e1a | 102 | while(!mpu.begin(MPU6050_SCALE_2000DPS, MPU6050_RANGE_2G)) { |
daniel_davvid | 0:e42837021e1a | 103 | pc.printf("Could not find a valid MPU6050 sensor, check wiring!\n"); |
daniel_davvid | 0:e42837021e1a | 104 | wait(0.5); |
daniel_davvid | 0:e42837021e1a | 105 | } |
daniel_davvid | 0:e42837021e1a | 106 | mpu.calibrateGyro(); |
daniel_davvid | 0:e42837021e1a | 107 | mpu.setThreshold(3); |
daniel_davvid | 0:e42837021e1a | 108 | |
daniel_davvid | 0:e42837021e1a | 109 | //BMP setup |
daniel_davvid | 0:e42837021e1a | 110 | bmp.initialize(); |
daniel_davvid | 0:e42837021e1a | 111 | //BH setup |
daniel_davvid | 0:e42837021e1a | 112 | bh.init(); |
daniel_davvid | 0:e42837021e1a | 113 | // |
daniel_davvid | 0:e42837021e1a | 114 | compass.init(); |
daniel_davvid | 0:e42837021e1a | 115 | desiredAngle = 0.0; //** SET BY HELIOS LIB!!!!** |
daniel_davvid | 0:e42837021e1a | 116 | |
daniel_davvid | 0:e42837021e1a | 117 | //Timers Start |
daniel_davvid | 0:e42837021e1a | 118 | displayTimer.start(); |
daniel_davvid | 0:e42837021e1a | 119 | compassPollTimer.start(); |
daniel_davvid | 0:e42837021e1a | 120 | |
daniel_davvid | 0:e42837021e1a | 121 | |
daniel_davvid | 0:e42837021e1a | 122 | while (1) { |
daniel_davvid | 0:e42837021e1a | 123 | |
daniel_davvid | 0:e42837021e1a | 124 | //Helios |
daniel_davvid | 0:e42837021e1a | 125 | seconds = time(NULL); |
daniel_davvid | 0:e42837021e1a | 126 | sun.updatePosition(); |
daniel_davvid | 0:e42837021e1a | 127 | strftime(buffer, 32, "%H:%M:%S", localtime(&seconds)); |
daniel_davvid | 0:e42837021e1a | 128 | |
daniel_davvid | 0:e42837021e1a | 129 | //SHT15 |
daniel_davvid | 0:e42837021e1a | 130 | busy = true; |
daniel_davvid | 0:e42837021e1a | 131 | sensor.update(); |
daniel_davvid | 0:e42837021e1a | 132 | busy = false; |
daniel_davvid | 0:e42837021e1a | 133 | sensor.setScale(false); |
daniel_davvid | 0:e42837021e1a | 134 | |
daniel_davvid | 0:e42837021e1a | 135 | //MPU readings |
daniel_davvid | 0:e42837021e1a | 136 | // not needed? |
daniel_davvid | 0:e42837021e1a | 137 | rawGyro = mpu.readRawGyro(); |
daniel_davvid | 0:e42837021e1a | 138 | normGyro = mpu.readNormalizeGyro(); |
daniel_davvid | 0:e42837021e1a | 139 | rawAccel = mpu.readRawAccel(); |
daniel_davvid | 0:e42837021e1a | 140 | normAccel = mpu.readNormalizeAccel(); |
daniel_davvid | 0:e42837021e1a | 141 | // (ADD TO A new READ FUNCTION in lib???) |
daniel_davvid | 0:e42837021e1a | 142 | scaledAccel = mpu.readScaledAccel(); |
daniel_davvid | 0:e42837021e1a | 143 | vertG = scaledAccel.ZAxis; |
daniel_davvid | 0:e42837021e1a | 144 | vertG = vertG > 2.0f ? 3.9f - vertG : vertG; |
daniel_davvid | 0:e42837021e1a | 145 | vertG = vertG < 1.0f ? vertG : 1.0f; |
daniel_davvid | 0:e42837021e1a | 146 | vertG = vertG > -1.0f ? vertG : -1.0f; |
daniel_davvid | 0:e42837021e1a | 147 | |
daniel_davvid | 0:e42837021e1a | 148 | |
daniel_davvid | 0:e42837021e1a | 149 | if (compassPollTimer.read() > 1) { |
daniel_davvid | 0:e42837021e1a | 150 | compassPollTimer.reset(); |
daniel_davvid | 0:e42837021e1a | 151 | actualAngle = 360-compass.read(); |
daniel_davvid | 0:e42837021e1a | 152 | |
daniel_davvid | 0:e42837021e1a | 153 | //Helios |
daniel_davvid | 0:e42837021e1a | 154 | printf("UTC time is: %s\n", buffer); |
daniel_davvid | 0:e42837021e1a | 155 | printf("Sun azimuth: %.2f, elevation: %.2f\n", sun.azimuth(), sun.elevation()); |
daniel_davvid | 0:e42837021e1a | 156 | |
daniel_davvid | 0:e42837021e1a | 157 | //MAXI17043 |
daniel_davvid | 0:e42837021e1a | 158 | pc.printf("Vcell: %.2f\n", fuelGauge.getFloatVCell()); |
daniel_davvid | 0:e42837021e1a | 159 | pc.printf("Battery: %.2f\n", fuelGauge.getFloatSOC()); |
daniel_davvid | 0:e42837021e1a | 160 | |
daniel_davvid | 0:e42837021e1a | 161 | //SHT15 |
daniel_davvid | 0:e42837021e1a | 162 | pc.printf("Temperature [ %3.2f C ]\r\n", sensor.getTemperature()); |
daniel_davvid | 0:e42837021e1a | 163 | pc.printf("Humdity [ %3.2f %% ]\r\n\n", sensor.getHumidity()); |
daniel_davvid | 0:e42837021e1a | 164 | |
daniel_davvid | 0:e42837021e1a | 165 | //DS1820 sensor |
daniel_davvid | 0:e42837021e1a | 166 | probe[0]->convertTemperature(true, DS1820::all_devices); |
daniel_davvid | 0:e42837021e1a | 167 | for (int i = 0; i<num_devices; i++) |
daniel_davvid | 0:e42837021e1a | 168 | pc.printf("Device %d returns %3.1foC\r\n", i, probe[i]->temperature()); |
daniel_davvid | 0:e42837021e1a | 169 | // |
daniel_davvid | 0:e42837021e1a | 170 | |
daniel_davvid | 0:e42837021e1a | 171 | lcd.setPageAddress(0,0); |
daniel_davvid | 0:e42837021e1a | 172 | lcd.setColumnAddress(0,127); |
daniel_davvid | 0:e42837021e1a | 173 | lcd.printf("Compass: %3.0f", actualAngle); |
daniel_davvid | 0:e42837021e1a | 174 | pc.printf("Compass: %2.3f\n", actualAngle); |
daniel_davvid | 0:e42837021e1a | 175 | //lcd.printf("Difference: %f\n", angleDiff(actualAngle, desiredAngle)); |
daniel_davvid | 0:e42837021e1a | 176 | |
daniel_davvid | 0:e42837021e1a | 177 | lcd.setPageAddress(1,1); |
daniel_davvid | 0:e42837021e1a | 178 | lcd.setColumnAddress(0,127); |
daniel_davvid | 0:e42837021e1a | 179 | lcd.printf("Angle: %2.0f", acos(vertG)/M_PI*180.0f); |
daniel_davvid | 0:e42837021e1a | 180 | // lcd.printf("Angle: %2.3f", vertG); |
daniel_davvid | 0:e42837021e1a | 181 | pc.printf("Vertical angle: %1.3f\n", acos(vertG)/M_PI*180.0f); |
daniel_davvid | 0:e42837021e1a | 182 | |
daniel_davvid | 0:e42837021e1a | 183 | lcd.setPageAddress(2,2); |
daniel_davvid | 0:e42837021e1a | 184 | lcd.setColumnAddress(0,127); |
daniel_davvid | 0:e42837021e1a | 185 | lcd.printf("LUX: %4.0f", (bh.lux()/1.2f)); |
daniel_davvid | 0:e42837021e1a | 186 | pc.printf("Intensity: %5.2f lux\n", (bh.lux()/1.2f)); |
daniel_davvid | 0:e42837021e1a | 187 | |
daniel_davvid | 0:e42837021e1a | 188 | pc.printf("Temp = %f\t Pres = %f\n", bmp.getTemperature(),bmp.getPressure()); |
daniel_davvid | 0:e42837021e1a | 189 | lcd.setPageAddress(3,3); |
daniel_davvid | 0:e42837021e1a | 190 | lcd.setColumnAddress(0,127); |
daniel_davvid | 0:e42837021e1a | 191 | lcd.printf("Temp: %.1f", bmp.getTemperature()); |
daniel_davvid | 0:e42837021e1a | 192 | lcd.setPageAddress(4,4); |
daniel_davvid | 0:e42837021e1a | 193 | lcd.setColumnAddress(0,127); |
daniel_davvid | 0:e42837021e1a | 194 | lcd.printf("Press: %4.f", bmp.getPressure()); |
daniel_davvid | 0:e42837021e1a | 195 | |
daniel_davvid | 0:e42837021e1a | 196 | |
daniel_davvid | 0:e42837021e1a | 197 | |
daniel_davvid | 0:e42837021e1a | 198 | if (abs(angleDiff(actualAngle, desiredAngle)) > 5) { |
daniel_davvid | 0:e42837021e1a | 199 | if (angleDiff(actualAngle, desiredAngle) > 0) { |
daniel_davvid | 0:e42837021e1a | 200 | stepper.setDirection(StepperController::DirectionCCW); |
daniel_davvid | 0:e42837021e1a | 201 | stpAngl.step(0, 1, 100); |
daniel_davvid | 0:e42837021e1a | 202 | } |
daniel_davvid | 0:e42837021e1a | 203 | else { |
daniel_davvid | 0:e42837021e1a | 204 | stepper.setDirection(StepperController::DirectionCW); |
daniel_davvid | 0:e42837021e1a | 205 | stpAngl.step(0, 0, 100); |
daniel_davvid | 0:e42837021e1a | 206 | } |
daniel_davvid | 0:e42837021e1a | 207 | |
daniel_davvid | 0:e42837021e1a | 208 | } |
daniel_davvid | 0:e42837021e1a | 209 | } |
daniel_davvid | 0:e42837021e1a | 210 | } |
daniel_davvid | 0:e42837021e1a | 211 | } |
daniel_davvid | 0:e42837021e1a | 212 | |
daniel_davvid | 0:e42837021e1a | 213 | double angleDiff(double a, double b) |
daniel_davvid | 0:e42837021e1a | 214 | { |
daniel_davvid | 0:e42837021e1a | 215 | double diff = a - b; |
daniel_davvid | 0:e42837021e1a | 216 | |
daniel_davvid | 0:e42837021e1a | 217 | if (diff > 180) |
daniel_davvid | 0:e42837021e1a | 218 | diff -= 360; |
daniel_davvid | 0:e42837021e1a | 219 | if (diff < -180) |
daniel_davvid | 0:e42837021e1a | 220 | diff += 360; |
daniel_davvid | 0:e42837021e1a | 221 | return diff; |
daniel_davvid | 0:e42837021e1a | 222 | } |
daniel_davvid | 0:e42837021e1a | 223 | |
daniel_davvid | 0:e42837021e1a | 224 | int waterLevel(){ |
daniel_davvid | 0:e42837021e1a | 225 | float value; |
daniel_davvid | 0:e42837021e1a | 226 | value = waterLevel.read() *1000; |
daniel_davvid | 0:e42837021e1a | 227 | if (value<=150) { |
daniel_davvid | 0:e42837021e1a | 228 | value=0; |
daniel_davvid | 0:e42837021e1a | 229 | } else if (value>150 && value<=210) { |
daniel_davvid | 0:e42837021e1a | 230 | value=1/4; |
daniel_davvid | 0:e42837021e1a | 231 | } else if (value>210 && value<=250) { |
daniel_davvid | 0:e42837021e1a | 232 | value=1/2; |
daniel_davvid | 0:e42837021e1a | 233 | } else if (value>250 && value<=350) { |
daniel_davvid | 0:e42837021e1a | 234 | value=3/4;; |
daniel_davvid | 0:e42837021e1a | 235 | } else if (value>350) { |
daniel_davvid | 0:e42837021e1a | 236 | value=1; |
daniel_davvid | 0:e42837021e1a | 237 | } |
daniel_davvid | 0:e42837021e1a | 238 | value=value*100; //final data in x% |
daniel_davvid | 0:e42837021e1a | 239 | return value; |
daniel_davvid | 0:e42837021e1a | 240 | } |
daniel_davvid | 0:e42837021e1a | 241 | |
daniel_davvid | 0:e42837021e1a | 242 | float currentData(){ |
daniel_davvid | 0:e42837021e1a | 243 | //VOUT=Vcc/2+i*VCC/36.7 |
daniel_davvid | 0:e42837021e1a | 244 | //i=36.7*Vout/Vcc-18.3 |
daniel_davvid | 0:e42837021e1a | 245 | |
daniel_davvid | 0:e42837021e1a | 246 | float current; |
daniel_davvid | 0:e42837021e1a | 247 | current = 36.7*(currentData.read()/3.3)-18.3;//??? |
daniel_davvid | 0:e42837021e1a | 248 | return current; |
daniel_davvid | 0:e42837021e1a | 249 | } |