Difference between revisions of "WaspmoteBLECentral"

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WaspmoteBLECentral is a thing type that implements a [https://docs.mbed.com/docs/ble-intros/en/latest/Introduction/BLEInDepth/ BLE Central] to communicate with Libelium waspmote model using the BLE protocol.
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WaspmoteBLECentral is a thing type that implements a [https://docs.mbed.com/docs/ble-intros/en/latest/Introduction/BLEInDepth/ BLE Central] to communicate with Libelium waspmote model using the BLE protocol /amtech/linkeddata/types/composite/entity/waspmoteBLECentral.
 
The [https://www.arduino.cc/en/tutorial/sketch Arduino sketch] running on the Libelium waspmote model should construct the BLE advertisement package following the next guideline:
 
The [https://www.arduino.cc/en/tutorial/sketch Arduino sketch] running on the Libelium waspmote model should construct the BLE advertisement package following the next guideline:
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#Write the local attribute containing the device name value "WBLE"  BLE.writeLocalAttribute(3, deviceName);
 
#Build a [https://docs.mbed.com/docs/ble-intros/en/latest/Advanced/CustomGAP/ custom BLE advertisement packet]
 
#Build a [https://docs.mbed.com/docs/ble-intros/en/latest/Advanced/CustomGAP/ custom BLE advertisement packet]
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##First byte package size
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##Second byte  MANUFACTURER_SPECIFIC_DATA Identifier 0xff
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/*
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##Third byte Libelium BLE waspmote identifier LIBELIUM_BLEID
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  * AD_TYPE_MANUFACTURER_SPECIFIC_DATA (1) LIBELIUM_BLEID (1) Gases_PRO (1) TOTAL_SENSORS (1) SENSORS_MSG (1)  
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##Fort byte waspmote model identifier example GAS_PRO = 19 (see waspmote model documentation)
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* SENSOR_ACC (1 + 6) SENSOR_BAT (1 + 1), SENSOR_IN_TEMP (1 + 4) , SENSOR_GP_TC (1 + 4 ) SENSOR_GP_HUM ( 1+ 4) [29]
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##Fifth byte first 4 bits total number of sensors that will be sent in all advertisement packets last 4 bits the amount of sensors values send in current packet
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  */
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##Sixth a message number that should increment with a advertisement packet sent
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##Next bytes must be set with read sensor value a byte with the id of the sensor from Libelium WaspFrame.h and the value(s) read b the sensor
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#WaspmoteBLECentral logic uses sensor values type and size from Libelium document data_frame_guide.pdf [http://www.libelium.com/downloads/documentation/data_frame_guide.pdf Sensor ID Table page 13]
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/*
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*The following c function generates a custom BLE advertisement packet for a Gases_PRO waspmote model sending read from 5 sensors SENSOR_ACC, SENSOR_BAT, SENSOR_IN_TEMP, SENSOR_GP_TC and SENSOR_GP_HUM.
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* LIBELIUM_BLEID (1) Gases_PRO (1) TOTAL_SENSORS (1) SENSORS_MSG (1) SENSOR_GP_PRES ( 1+ 4) SENSOR_GP_CH4 ( 1+ 4) SENSOR_GP_NO2 ( 1+ 4) SENSOR_GP_O2 ( 1+ 4) SENSOR_GP_CO ( 1+ 4) [30]
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<syntaxhighlight lang="c">
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*/
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#define MSGADDITIONAL_SIZE 29;
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int buildAdditionalSensors()
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{
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  int ms = 0; ;
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  memset(advData,  0x00, sizeof(advData));
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  advData[ms++]= MSGADDITIONAL_SIZE;
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  advData[ms++]= AD_TYPE_MANUFACTURER_SPECIFIC_DATA;
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  advData[ms++] = LIBELIUM_BLEID;
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  advData[ms++] = Gases_PRO;
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  advData[ms++] = (uint8_t)(10 | (5 <<4));
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  advData[ms++] = msgNumber++;
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  showValue(msgNumber, "msgNumber", ms);
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  //1 SENSOR_ACC
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  advData[ms++] = SENSOR_ACC;
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  int x = ACC.getX();
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  int y = ACC.getY();
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  int z = ACC.getZ();
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  memcpy( &advData[ms], &x, sizeof(int) );
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  ms += sizeof(int);
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  memcpy( &advData[ms], &y, sizeof(int) );
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  ms += sizeof(int);
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  memcpy( &advData[ms], &z, sizeof(int) );
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  ms += sizeof(int);
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  showACCValues(x,y,z, ms);
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  //2S ENSOR_BAT
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  advData[ms++] = SENSOR_BAT;
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  uint8_t vuint = PWR.getBatteryLevel();
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  memcpy( &advData[ms], &vuint, sizeof(uint8_t) );
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  ms += sizeof(uint8_t);
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  showValue(vuint, "SENSOR_BAT", ms);
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  //3 SENSOR_IN_TEMP
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  advData[ms++] = SENSOR_IN_TEMP;
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  float vfloat = RTC.getTemperature();
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  memcpy( &advData[ms], &vfloat, sizeof(float) );
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  ms += sizeof(float);
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  showValue(vfloat, "SENSOR_IN_TEMP", ms);
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  //4 SENSOR_GP_TC
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  advData[ms++] = SENSOR_GP_TC;
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  memcpy( &advData[ms], &temperature, sizeof(float) );
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  ms += sizeof(float);
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  showValue(temperature, "SENSOR_GP_TC", ms);
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  //5 SENSOR_GP_HUM
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  advData[ms++] = SENSOR_GP_HUM;
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  memcpy( &advData[ms], &humidity, sizeof(float) );
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  ms += sizeof(float);
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  showValue(humidity, "SENSOR_GP_HUM", ms);
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  return ms;
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}
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</syntaxhighlight>
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*Smoothing configuration can be set by Waspmote model and sensors id leveraging property readSmoothing
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[[File:Waspmote-config.png|950px||thumbnail|left|Waspmote smoothing configuration]]

Latest revision as of 18:51, 19 July 2017

WaspmoteBLECentral is a thing type that implements a BLE Central to communicate with Libelium waspmote model using the BLE protocol /amtech/linkeddata/types/composite/entity/waspmoteBLECentral. The Arduino sketch running on the Libelium waspmote model should construct the BLE advertisement package following the next guideline:

  1. Write the local attribute containing the device name value "WBLE" BLE.writeLocalAttribute(3, deviceName);
  2. Build a custom BLE advertisement packet
    1. First byte package size
    2. Second byte MANUFACTURER_SPECIFIC_DATA Identifier 0xff
    3. Third byte Libelium BLE waspmote identifier LIBELIUM_BLEID
    4. Fort byte waspmote model identifier example GAS_PRO = 19 (see waspmote model documentation)
    5. Fifth byte first 4 bits total number of sensors that will be sent in all advertisement packets last 4 bits the amount of sensors values send in current packet
    6. Sixth a message number that should increment with a advertisement packet sent
    7. Next bytes must be set with read sensor value a byte with the id of the sensor from Libelium WaspFrame.h and the value(s) read b the sensor
  3. WaspmoteBLECentral logic uses sensor values type and size from Libelium document data_frame_guide.pdf Sensor ID Table page 13
  • The following c function generates a custom BLE advertisement packet for a Gases_PRO waspmote model sending read from 5 sensors SENSOR_ACC, SENSOR_BAT, SENSOR_IN_TEMP, SENSOR_GP_TC and SENSOR_GP_HUM.
#define MSGADDITIONAL_SIZE 29; 
int buildAdditionalSensors()
{
  int ms = 0;  ; 
  memset(advData,  0x00, sizeof(advData));
  advData[ms++]= MSGADDITIONAL_SIZE;
  advData[ms++]= AD_TYPE_MANUFACTURER_SPECIFIC_DATA;
  advData[ms++] = LIBELIUM_BLEID;
  advData[ms++] = Gases_PRO;
  advData[ms++] = (uint8_t)(10 | (5 <<4));
  advData[ms++] = msgNumber++;
  showValue(msgNumber, "msgNumber", ms);
  //1 SENSOR_ACC
  advData[ms++] = SENSOR_ACC;
  int x = ACC.getX();
  int y = ACC.getY();
  int z = ACC.getZ();
  memcpy( &advData[ms], &x, sizeof(int) );
  ms += sizeof(int);
  memcpy( &advData[ms], &y, sizeof(int) );
  ms += sizeof(int);
  memcpy( &advData[ms], &z, sizeof(int) );
  ms += sizeof(int);
  showACCValues(x,y,z, ms);
  //2S ENSOR_BAT
  advData[ms++] = SENSOR_BAT;
  uint8_t vuint =  PWR.getBatteryLevel();
  memcpy( &advData[ms], &vuint, sizeof(uint8_t) );
  ms += sizeof(uint8_t);
  showValue(vuint, "SENSOR_BAT", ms);
  //3 SENSOR_IN_TEMP
  advData[ms++] = SENSOR_IN_TEMP;
  float vfloat = RTC.getTemperature();
  memcpy( &advData[ms], &vfloat, sizeof(float) );
  ms += sizeof(float);
  showValue(vfloat, "SENSOR_IN_TEMP", ms);
  //4 SENSOR_GP_TC
  advData[ms++] = SENSOR_GP_TC;
  memcpy( &advData[ms], &temperature, sizeof(float) );
  ms += sizeof(float);
  showValue(temperature, "SENSOR_GP_TC", ms);
  //5 SENSOR_GP_HUM
  advData[ms++] = SENSOR_GP_HUM;
  memcpy( &advData[ms], &humidity, sizeof(float) );
  ms += sizeof(float);
  showValue(humidity, "SENSOR_GP_HUM", ms);
  return ms;
}
  • Smoothing configuration can be set by Waspmote model and sensors id leveraging property readSmoothing
Waspmote smoothing configuration
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