Green Building Team / Mbed 2 deprecated BLE_GreenYourLife_STM32

It is a simple IoT solution for plant life monitoring and maintenance, based on STM32NUCLEO boards and expansion modules.

Dependencies:   BLE_API X_NUCLEO_IDB0XA1 X_NUCLEO_IKS01A1 mbed

GreenYourLife, A Plant Life Monitoring and Maintenance System

Elaborated By Engineers, Designed For The World

Introduction

A healthy ecosystem is one where all the actors in it work in synergy: each of them playing a part that serves the other. Plants play an important part in regulating our quality of life. In the modern world, they would often times be placed in buildings and houses, as decorations or as medicinal and therapeutic purposes. Whatever the reason, GreenYourLife is here to help you manage them.

GreenYourLife is an Internet of Things (IoT) solution that will allow you to perform the following:

  • Follow your plant's well-being on your connected device (smartphone, etc.)
  • Maintain your plant's well-being automatically

We've developed an indoor plant monitoring system with the STM32NUCLEO development board. The system will collect the plant's environmental data (air temperature, air humidity and soil moisture) and transfer them to your connected device. The data collected will then be stored on a cloud server, where you can follow the progress of your plant life.

How it works

Plant maintanence

Our concept of maintanence is the automatic catering of the plant's needs. In this version, we focus on water supply. Future versions may indeed include more than that.

On-board sensors on the STM32NUCLEO will obtain measurements of 3 main parameters on the plant surrounding:

  1. Air temperature
  2. Air humidity
  3. Soil moisture

Based on these values, the software then acts upon the water pump: activating it when in need of water and deactivating it if not.

Plant monitoring

Plant monitoring, for us, is the follow-up of the plant's health by monitoring environment quality and plant nutritions. In this version, we only monitor the three parameters listed above. Future version may include more advanced and smarter monitoring technique.

The STM32NUCLEO device acts as a Bluetooth server and awaits connection from any client (smartphone, etc.). Upon connection, the server updates the plant environment parameters at a fixed interval. The client application will then transfer these received characteristics to the cloud.

Details

Hardware

The target platform is the STM32NUCLEO L476RG development board with two additional modules:

  • the IDB05A1 Bluetooth LE expansion board, which uses a BlueNRG coprocessor
  • and the IKS01A1 MEMS sensor expansion board

There are several additional materials that constitute the system:

  • a Funduino Soil Moisture Sensor, hooked up to 5V at pin PB_1
  • a relay, hooked up to 3.3V at pin PC_8 and controlled by a PWM pulse
  • a DC water pump

Software

We have used the ARM mbed platform for general code bring-up. We've used the following libraries:

  • mbed library by ARM
  • BLE_API library by the Bluetooth Low Energy team
  • X_NUCLEO_IDB0XA1 library by the ST Microelectronics team
  • X_NUCLEO_IKS01A1 library by the ST Microelectronics team

The acquired data on the client device is then sent to a cloud server that we hosted on ThingSpeak, so that people can remotely access the data. It is available at the GreenYourLife channel .

Reference

main.cpp@2:326a19b95766, 2016-11-29 (annotated)

Committer:
kaiserhaz
Date:
Tue Nov 29 18:16:38 2016 +0000
Revision:
2:326a19b95766
Parent:
1:b30300f95d4a
Child:
3:c460d60ffda6
Added fast polling mechanism and implemented pump control loop.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kaiserhaz 0:7dce5e74ad91 1 /************************ STM32NUCLEO IOT Contest ******************************
kaiserhaz 0:7dce5e74ad91 2 *
kaiserhaz 0:7dce5e74ad91 3 * Green Building IoT Solution for
kaiserhaz 0:7dce5e74ad91 4 * Plant Life Monitoring And Maintenance
kaiserhaz 0:7dce5e74ad91 5 *
kaiserhaz 0:7dce5e74ad91 6 * Authored by
kaiserhaz 0:7dce5e74ad91 7 * Dien Hoa Truong
kaiserhaz 0:7dce5e74ad91 8 * Muhammad Haziq Bin Kamarul Azman
kaiserhaz 0:7dce5e74ad91 9 *
kaiserhaz 0:7dce5e74ad91 10 * for the
kaiserhaz 0:7dce5e74ad91 11 * eSAME 2016 STM32NUCLEO IoT Contest in Sophia-Antipolis
kaiserhaz 0:7dce5e74ad91 12 *
kaiserhaz 0:7dce5e74ad91 13 * main.cpp | Program main
kaiserhaz 0:7dce5e74ad91 14 *
kaiserhaz 0:7dce5e74ad91 15 ******************************************************************************/
kaiserhaz 0:7dce5e74ad91 16
kaiserhaz 0:7dce5e74ad91 17 /** Includes **/
kaiserhaz 0:7dce5e74ad91 18 #include "mbed.h" // ARM mbed library
kaiserhaz 0:7dce5e74ad91 19 #include "x_nucleo_iks01a1.h" // STM32NUCLEO board library
kaiserhaz 0:7dce5e74ad91 20 #include "ble/BLE.h" // Bluetooth LE library
kaiserhaz 0:7dce5e74ad91 21 #include "GreenBuildingService.h" // Green Building service library
kaiserhaz 0:7dce5e74ad91 22
kaiserhaz 0:7dce5e74ad91 23
kaiserhaz 0:7dce5e74ad91 24
kaiserhaz 0:7dce5e74ad91 25 /** Defines **/
kaiserhaz 2:326a19b95766 26 #define GB_SOIL_MOISTURE_MAX 70 // Soil moisture threshold value
kaiserhaz 0:7dce5e74ad91 27
kaiserhaz 0:7dce5e74ad91 28
kaiserhaz 0:7dce5e74ad91 29
kaiserhaz 0:7dce5e74ad91 30 /** Device declarations **/
kaiserhaz 0:7dce5e74ad91 31
kaiserhaz 0:7dce5e74ad91 32 // Board-specific
kaiserhaz 1:b30300f95d4a 33 PwmOut pumpPWM(PC_8); // PWM motor control out pin
kaiserhaz 0:7dce5e74ad91 34 DigitalOut led1(LED1, 1); // Debug pin instance
kaiserhaz 1:b30300f95d4a 35 AnalogIn moisture_sensor(PB_1); // Moisture sensor
kaiserhaz 0:7dce5e74ad91 36 static X_NUCLEO_IKS01A1 *mems_expansion_board = X_NUCLEO_IKS01A1::Instance(D14, D15); // Expansion board instance
kaiserhaz 0:7dce5e74ad91 37 static HumiditySensor *humidity_sensor = mems_expansion_board->ht_sensor; // Expansion board humidity sensor instance
kaiserhaz 0:7dce5e74ad91 38 static TempSensor *temp_sensor = mems_expansion_board->ht_sensor; // Expansion board temperature sensor instance
kaiserhaz 0:7dce5e74ad91 39
kaiserhaz 0:7dce5e74ad91 40 // BLE-specific
kaiserhaz 0:7dce5e74ad91 41 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE); // BLE device instance
kaiserhaz 0:7dce5e74ad91 42 const static char DEVICE_NAME[] = "GB-Sensor"; // Device name
kaiserhaz 0:7dce5e74ad91 43 static const uint16_t uuid16_list[] = {GreenBuildingService::UUID_GREEN_BUILDING_SERVICE};
kaiserhaz 0:7dce5e74ad91 44 GreenBuildingService *gbServicePtr; // Service pointer
kaiserhaz 0:7dce5e74ad91 45
kaiserhaz 0:7dce5e74ad91 46 // Program-specific
kaiserhaz 0:7dce5e74ad91 47 float getMoistureValue();
kaiserhaz 0:7dce5e74ad91 48 float getHumidityValue();
kaiserhaz 0:7dce5e74ad91 49 float getTemperatureValue();
kaiserhaz 0:7dce5e74ad91 50 void errorLoop(void);
kaiserhaz 2:326a19b95766 51 void activateFastSensorPoll();
kaiserhaz 2:326a19b95766 52 void deactivateFastSensorPoll();
kaiserhaz 2:326a19b95766 53 void pumpActivateCallback(void);
kaiserhaz 2:326a19b95766 54 void pumpDeactivateCallback(void);
kaiserhaz 0:7dce5e74ad91 55
kaiserhaz 0:7dce5e74ad91 56 Ticker sanityTicker;
kaiserhaz 0:7dce5e74ad91 57 Ticker sensorPollTicker;
kaiserhaz 2:326a19b95766 58 Ticker fastSensorPollTicker;
kaiserhaz 2:326a19b95766 59 Timeout pumpWaitTimeout;
kaiserhaz 0:7dce5e74ad91 60 bool sensorPolling;
kaiserhaz 2:326a19b95766 61 bool fastSensorPolling;
kaiserhaz 2:326a19b95766 62 bool pumpActivate;
kaiserhaz 2:326a19b95766 63 bool waitOnce;
kaiserhaz 2:326a19b95766 64 bool bleActive;
kaiserhaz 2:326a19b95766 65 bool pumpActive;
kaiserhaz 0:7dce5e74ad91 66
kaiserhaz 0:7dce5e74ad91 67
kaiserhaz 0:7dce5e74ad91 68 /** Callbacks **/
kaiserhaz 0:7dce5e74ad91 69
kaiserhaz 0:7dce5e74ad91 70 // BLE-specific callback
kaiserhaz 0:7dce5e74ad91 71 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) // Callback for everytime the connection gets disconnected
kaiserhaz 0:7dce5e74ad91 72 {
kaiserhaz 0:7dce5e74ad91 73 ble.gap().startAdvertising(); // Restart advertising
kaiserhaz 2:326a19b95766 74 if(!pumpActive)
kaiserhaz 2:326a19b95766 75 deactivateFastSensorPoll();
kaiserhaz 2:326a19b95766 76 bleActive = false;
kaiserhaz 0:7dce5e74ad91 77 // printf("\r\n> BLE : Disconnected. Advertising restarted.");
kaiserhaz 0:7dce5e74ad91 78 }
kaiserhaz 0:7dce5e74ad91 79
kaiserhaz 0:7dce5e74ad91 80 void connectionCallback(const Gap::ConnectionCallbackParams_t *params) // Callback for everytime the connection is established
kaiserhaz 0:7dce5e74ad91 81 {
kaiserhaz 0:7dce5e74ad91 82 // ble.gap().stopAdvertising(); // Stop advertising
kaiserhaz 2:326a19b95766 83 activateFastSensorPoll();
kaiserhaz 2:326a19b95766 84 bleActive = true;
kaiserhaz 0:7dce5e74ad91 85 // printf("\r\n> BLE : Connected to %x. Accept no subsequent connections.", params->peerAddr);
kaiserhaz 0:7dce5e74ad91 86 }
kaiserhaz 0:7dce5e74ad91 87
kaiserhaz 0:7dce5e74ad91 88 void onBleInitError(BLE &ble, ble_error_t error)
kaiserhaz 0:7dce5e74ad91 89 {
kaiserhaz 0:7dce5e74ad91 90 // printf("\r\n> BLE : Init error encountered. Error returned: %d", error);
kaiserhaz 0:7dce5e74ad91 91 errorLoop();
kaiserhaz 0:7dce5e74ad91 92 }
kaiserhaz 0:7dce5e74ad91 93
kaiserhaz 0:7dce5e74ad91 94 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
kaiserhaz 0:7dce5e74ad91 95 {
kaiserhaz 0:7dce5e74ad91 96 BLE& ble = params->ble;
kaiserhaz 0:7dce5e74ad91 97 ble_error_t error = params->error;
kaiserhaz 0:7dce5e74ad91 98
kaiserhaz 0:7dce5e74ad91 99 if (error != BLE_ERROR_NONE) { // Check to see init errors
kaiserhaz 0:7dce5e74ad91 100 onBleInitError(ble, error);
kaiserhaz 0:7dce5e74ad91 101 errorLoop();
kaiserhaz 0:7dce5e74ad91 102 }
kaiserhaz 0:7dce5e74ad91 103
kaiserhaz 0:7dce5e74ad91 104 if (ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { // If this is not default instance (double instanciation?)
kaiserhaz 0:7dce5e74ad91 105 // printf("\r\n> BLE : BLE controller instance is invalid.");
kaiserhaz 0:7dce5e74ad91 106 errorLoop();
kaiserhaz 0:7dce5e74ad91 107 }
kaiserhaz 0:7dce5e74ad91 108
kaiserhaz 0:7dce5e74ad91 109 ble.gap().onDisconnection(disconnectionCallback); // Register disconnection callback
kaiserhaz 0:7dce5e74ad91 110 ble.gap().onConnection(connectionCallback); // Register connection callback
kaiserhaz 0:7dce5e74ad91 111
kaiserhaz 0:7dce5e74ad91 112 gbServicePtr = new GreenBuildingService(ble); // Init service with initial value
kaiserhaz 0:7dce5e74ad91 113
kaiserhaz 0:7dce5e74ad91 114 /* Setup advertising. */
kaiserhaz 0:7dce5e74ad91 115 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
kaiserhaz 0:7dce5e74ad91 116 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
kaiserhaz 0:7dce5e74ad91 117 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS,(uint8_t *)uuid16_list, sizeof(uuid16_list));
kaiserhaz 0:7dce5e74ad91 118 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
kaiserhaz 0:7dce5e74ad91 119 ble.gap().setAdvertisingInterval(1000); /* 1000ms */
kaiserhaz 0:7dce5e74ad91 120 ble.gap().startAdvertising();
kaiserhaz 0:7dce5e74ad91 121
kaiserhaz 0:7dce5e74ad91 122 // printf("\r\n> BLE : BLE Init done.");
kaiserhaz 0:7dce5e74ad91 123 }
kaiserhaz 0:7dce5e74ad91 124
kaiserhaz 0:7dce5e74ad91 125 // Helper functions for retrieving data from sensors
kaiserhaz 0:7dce5e74ad91 126 float getMoistureValue()
kaiserhaz 0:7dce5e74ad91 127 {
kaiserhaz 0:7dce5e74ad91 128 float moisture = 0;
kaiserhaz 0:7dce5e74ad91 129 for (int i = 1;i<=10;i++) {
kaiserhaz 0:7dce5e74ad91 130 moisture += moisture_sensor.read(); // Get ten samples
kaiserhaz 0:7dce5e74ad91 131 }
kaiserhaz 0:7dce5e74ad91 132 moisture = moisture / 10;
kaiserhaz 0:7dce5e74ad91 133 moisture = moisture * 3300; // Change the value to be in the 0 to 3300 range
kaiserhaz 0:7dce5e74ad91 134 moisture = moisture / 33; // Convert to percentage
kaiserhaz 0:7dce5e74ad91 135 return moisture;
kaiserhaz 0:7dce5e74ad91 136 }
kaiserhaz 0:7dce5e74ad91 137
kaiserhaz 0:7dce5e74ad91 138 float getHumidityValue()
kaiserhaz 0:7dce5e74ad91 139 {
kaiserhaz 0:7dce5e74ad91 140 float humidity = 0;
kaiserhaz 0:7dce5e74ad91 141 humidity_sensor->GetHumidity(&humidity);
kaiserhaz 0:7dce5e74ad91 142 return humidity;
kaiserhaz 0:7dce5e74ad91 143 }
kaiserhaz 0:7dce5e74ad91 144
kaiserhaz 0:7dce5e74ad91 145 float getTemperatureValue()
kaiserhaz 0:7dce5e74ad91 146 {
kaiserhaz 0:7dce5e74ad91 147 float temperature = 0;
kaiserhaz 0:7dce5e74ad91 148 temp_sensor->GetTemperature(&temperature);
kaiserhaz 0:7dce5e74ad91 149 return temperature;
kaiserhaz 0:7dce5e74ad91 150 }
kaiserhaz 0:7dce5e74ad91 151
kaiserhaz 0:7dce5e74ad91 152
kaiserhaz 0:7dce5e74ad91 153 // Miscellaneous callbacks & functions
kaiserhaz 0:7dce5e74ad91 154 void sanityCallback(void)
kaiserhaz 0:7dce5e74ad91 155 {
kaiserhaz 0:7dce5e74ad91 156 led1 = !led1; // Blink LED1 to indicate system sanity
kaiserhaz 0:7dce5e74ad91 157 }
kaiserhaz 0:7dce5e74ad91 158
kaiserhaz 0:7dce5e74ad91 159 void sensorPollCallback(void)
kaiserhaz 0:7dce5e74ad91 160 {
kaiserhaz 0:7dce5e74ad91 161 sensorPolling = true;
kaiserhaz 0:7dce5e74ad91 162 }
kaiserhaz 0:7dce5e74ad91 163
kaiserhaz 2:326a19b95766 164 void fastSensorPollCallback(void)
kaiserhaz 2:326a19b95766 165 {
kaiserhaz 2:326a19b95766 166 fastSensorPolling = true;
kaiserhaz 2:326a19b95766 167 }
kaiserhaz 2:326a19b95766 168
kaiserhaz 2:326a19b95766 169 void pumpActivateCallback(void)
kaiserhaz 2:326a19b95766 170 {
kaiserhaz 2:326a19b95766 171 pumpActivate = true;
kaiserhaz 2:326a19b95766 172 }
kaiserhaz 2:326a19b95766 173
kaiserhaz 2:326a19b95766 174 void pumpDeactivateCallback(void)
kaiserhaz 2:326a19b95766 175 {
kaiserhaz 2:326a19b95766 176 pumpActivate = false;
kaiserhaz 2:326a19b95766 177 }
kaiserhaz 2:326a19b95766 178
kaiserhaz 2:326a19b95766 179 void activateFastSensorPoll(void)
kaiserhaz 2:326a19b95766 180 {
kaiserhaz 2:326a19b95766 181 fastSensorPolling = true;
kaiserhaz 2:326a19b95766 182 fastSensorPollTicker.attach(&fastSensorPollCallback, 1);
kaiserhaz 2:326a19b95766 183 }
kaiserhaz 2:326a19b95766 184
kaiserhaz 2:326a19b95766 185 void deactivateFastSensorPoll(void)
kaiserhaz 2:326a19b95766 186 {
kaiserhaz 2:326a19b95766 187 fastSensorPolling = false;
kaiserhaz 2:326a19b95766 188 fastSensorPollTicker.detach();
kaiserhaz 2:326a19b95766 189 }
kaiserhaz 2:326a19b95766 190
kaiserhaz 2:326a19b95766 191
kaiserhaz 0:7dce5e74ad91 192 void errorLoop(void)
kaiserhaz 0:7dce5e74ad91 193 {
kaiserhaz 0:7dce5e74ad91 194 sanityTicker.detach();
kaiserhaz 0:7dce5e74ad91 195 sensorPollTicker.detach();
kaiserhaz 0:7dce5e74ad91 196 ble.shutdown();
kaiserhaz 1:b30300f95d4a 197 // printf("\r\n> ERROR : Error encountered. Infinite looping.");
kaiserhaz 0:7dce5e74ad91 198 while(true)
kaiserhaz 0:7dce5e74ad91 199 {
kaiserhaz 0:7dce5e74ad91 200 led1 != led1;
kaiserhaz 0:7dce5e74ad91 201 }
kaiserhaz 0:7dce5e74ad91 202 }
kaiserhaz 0:7dce5e74ad91 203
kaiserhaz 0:7dce5e74ad91 204
kaiserhaz 0:7dce5e74ad91 205
kaiserhaz 0:7dce5e74ad91 206 /** Pre-main inits **/
kaiserhaz 0:7dce5e74ad91 207
kaiserhaz 0:7dce5e74ad91 208
kaiserhaz 0:7dce5e74ad91 209
kaiserhaz 0:7dce5e74ad91 210 /** Main loop **/
kaiserhaz 0:7dce5e74ad91 211 int main(void)
kaiserhaz 0:7dce5e74ad91 212 {
kaiserhaz 0:7dce5e74ad91 213 printf("\r\n/**\r\n * Green Building Sensor Device: Debug Info\r\n */");
kaiserhaz 0:7dce5e74ad91 214
kaiserhaz 0:7dce5e74ad91 215 sensorPolling = false;
kaiserhaz 2:326a19b95766 216 fastSensorPolling = false;
kaiserhaz 2:326a19b95766 217 pumpActivate = false;
kaiserhaz 2:326a19b95766 218 waitOnce = true;
kaiserhaz 2:326a19b95766 219 bleActive = false;
kaiserhaz 2:326a19b95766 220 pumpActive = false;
kaiserhaz 0:7dce5e74ad91 221
kaiserhaz 0:7dce5e74ad91 222 sanityTicker.attach(sanityCallback, 1.1); // LED sanity checker
kaiserhaz 2:326a19b95766 223 sensorPollTicker.attach(sensorPollCallback, 4.9); // Sensor poll ticker
kaiserhaz 0:7dce5e74ad91 224
kaiserhaz 0:7dce5e74ad91 225 printf("\r\n> MAIN : Tickers initialized.");
kaiserhaz 0:7dce5e74ad91 226
kaiserhaz 0:7dce5e74ad91 227 volatile GreenBuildingService::PlantEnvironmentType_t peVal; // Plant environment var
kaiserhaz 0:7dce5e74ad91 228 uint8_t pumpCount = 0; // Pump timer
kaiserhaz 0:7dce5e74ad91 229
kaiserhaz 0:7dce5e74ad91 230 ble.init(bleInitComplete); // Pass BLE init complete function upon init
kaiserhaz 0:7dce5e74ad91 231
kaiserhaz 1:b30300f95d4a 232 // while(ble.hasInitialized() == false);
kaiserhaz 0:7dce5e74ad91 233
kaiserhaz 0:7dce5e74ad91 234 printf("\r\n> MAIN : BLE Init procedure done.");
kaiserhaz 0:7dce5e74ad91 235
kaiserhaz 0:7dce5e74ad91 236 // Infinite loop
kaiserhaz 0:7dce5e74ad91 237 while (true) {
kaiserhaz 0:7dce5e74ad91 238
kaiserhaz 2:326a19b95766 239 if(sensorPolling || fastSensorPolling)
kaiserhaz 0:7dce5e74ad91 240 {
kaiserhaz 0:7dce5e74ad91 241 sensorPolling = false; // Deassert polling bit
kaiserhaz 2:326a19b95766 242 fastSensorPolling = false;
kaiserhaz 0:7dce5e74ad91 243
kaiserhaz 0:7dce5e74ad91 244 peVal.soilMoisture = (uint8_t) getMoistureValue(); // Update all measurements
kaiserhaz 0:7dce5e74ad91 245 peVal.airHumidity = (uint8_t) getHumidityValue();
kaiserhaz 0:7dce5e74ad91 246 peVal.airTemperature = (int8_t) getTemperatureValue();
kaiserhaz 0:7dce5e74ad91 247
kaiserhaz 0:7dce5e74ad91 248 if(ble.getGapState().connected) // Update characteristic if connected
kaiserhaz 0:7dce5e74ad91 249 gbServicePtr->updatePlantEnvironment(peVal);
kaiserhaz 0:7dce5e74ad91 250
kaiserhaz 2:326a19b95766 251 // printf("\r\n> MAIN : Current soil moisture = %d", peVal.soilMoisture);
kaiserhaz 2:326a19b95766 252 // printf("\r\n> MAIN : Current air humidity = %d", peVal.airHumidity);
kaiserhaz 2:326a19b95766 253 // printf("\r\n> MAIN : Current air temperature = %d", peVal.airTemperature);
kaiserhaz 2:326a19b95766 254 printf("%d\t%d\t%d\r\n", peVal.airTemperature, peVal.airHumidity, peVal.soilMoisture);
kaiserhaz 0:7dce5e74ad91 255
kaiserhaz 2:326a19b95766 256 // If moisture is below 50% of max when user is present
kaiserhaz 2:326a19b95766 257 // or if less than 30% of max
kaiserhaz 2:326a19b95766 258 if( ( ((peVal.soilMoisture < 0.5*GB_SOIL_MOISTURE_MAX) && ble.getGapState().connected) ||
kaiserhaz 2:326a19b95766 259 ((peVal.soilMoisture < 0.3*GB_SOIL_MOISTURE_MAX) && !ble.getGapState().connected) ) &&
kaiserhaz 2:326a19b95766 260 waitOnce
kaiserhaz 2:326a19b95766 261 )
kaiserhaz 2:326a19b95766 262 {
kaiserhaz 2:326a19b95766 263 pumpWaitTimeout.attach(&pumpActivateCallback, 3); // Waiting time is hard coded but may be calculated, I think
kaiserhaz 2:326a19b95766 264 activateFastSensorPoll();
kaiserhaz 2:326a19b95766 265 waitOnce = false;
kaiserhaz 2:326a19b95766 266 pumpActive = true;
kaiserhaz 2:326a19b95766 267 }
kaiserhaz 2:326a19b95766 268 else if((peVal.soilMoisture >= 0.6*GB_SOIL_MOISTURE_MAX) && pumpActivate)
kaiserhaz 0:7dce5e74ad91 269 {
kaiserhaz 2:326a19b95766 270 pumpWaitTimeout.detach();
kaiserhaz 2:326a19b95766 271 pumpDeactivateCallback();
kaiserhaz 2:326a19b95766 272 if(!bleActive)
kaiserhaz 2:326a19b95766 273 deactivateFastSensorPoll();
kaiserhaz 2:326a19b95766 274 waitOnce = true;
kaiserhaz 2:326a19b95766 275 pumpActive = false;
kaiserhaz 2:326a19b95766 276 }
kaiserhaz 2:326a19b95766 277
kaiserhaz 2:326a19b95766 278 if(pumpActivate)
kaiserhaz 2:326a19b95766 279 {
kaiserhaz 2:326a19b95766 280 // printf("\r\n> MAIN : Activating water pump.");
kaiserhaz 2:326a19b95766 281 pumpPWM.write(0.75);
kaiserhaz 2:326a19b95766 282 for(pumpCount=0; pumpCount<3;++pumpCount)
kaiserhaz 2:326a19b95766 283 wait(0.9);
kaiserhaz 0:7dce5e74ad91 284 pumpPWM.write(0);
kaiserhaz 2:326a19b95766 285
kaiserhaz 2:326a19b95766 286 pumpActivate = false;
kaiserhaz 2:326a19b95766 287 pumpWaitTimeout.attach(&pumpActivateCallback, 1);
kaiserhaz 0:7dce5e74ad91 288 }
kaiserhaz 2:326a19b95766 289
kaiserhaz 0:7dce5e74ad91 290 }
kaiserhaz 0:7dce5e74ad91 291 else
kaiserhaz 2:326a19b95766 292 ble.waitForEvent(); //Low power wait for event
kaiserhaz 0:7dce5e74ad91 293
kaiserhaz 0:7dce5e74ad91 294 }
kaiserhaz 0:7dce5e74ad91 295 }