File content as of revision 3:b6d2c5195055:

#define I2C_SDA p3
#define I2C_SCL p4

#include "mbed.h"
#include "BLE.h"
#include "battery.h"
#include "WeatherService.h"
#include "BatteryService.h"
#include "BMP180.h"

BLE        ble;
DigitalOut okLED(LED1);
DigitalOut errLED(LED2);
DigitalOut instrumentsPower(p30);

BMP180 bmp180;
Serial pc(USBTX, USBRX);

const static char DEVICE_NAME[] = "Weather Station";

static const uint16_t serviceList[] = {
    GattService::UUID_ENVIRONMENTAL_SERVICE, 
    GattService::UUID_BATTERY_SERVICE
};

static volatile bool  triggerSensorPolling = false;

/* Restart Advertising on disconnection*/
void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
{
    ble.gap().startAdvertising();
}

void blink(void)
{
//    statusLED = !statusLED;
    triggerSensorPolling = true;
}

int main(void)
{
    pc.printf("Start\n");
    
    okLED = 1;
    errLED = 1;
    instrumentsPower = 1;
    wait(1);    
    uint8_t c = bmp180.readByte(BMP180_ADDRESS, BMP180_WHO_AM_I);   

    pc.printf("BMP-180 is 0x%x\n\r", c);
    pc.printf("BMP-180 should be 0x55\n");

    if(c == 0x55) {
        okLED = 0;
        pc.printf("BMP-180 online...\n");
       
        bmp180.BMP180Calibration();
        pc.printf("BMP-180 calibration complete...\n");
   }
   else 
   {
        errLED = 0;
        pc.printf("BMP-180 unreachable...\n");
        while(1); // idle here forever
   }

    Ticker ticker;
    ticker.attach(blink, 2);

    ble.init();
    ble.gap().onDisconnection(disconnectionCallback);

    /* Setup weather service. */
    WeatherService weatherService(ble);
    BatteryService batteryService(ble, 0);
    Battery battery(BATTERY_PIN);

    /* setup advertising */
    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)serviceList, sizeof(serviceList));
    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::UNKNOWN);
    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
    ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
    ble.gap().setAdvertisingInterval(1000); /* 1000ms */
    ble.gap().startAdvertising();

    while (true) {
        if (triggerSensorPolling && ble.getGapState().connected) {
            okLED = 1;
            triggerSensorPolling = false;

            float temperature = (float)bmp180.BMP180GetTemperature()/10.0f;
            float pressure = (float)bmp180.BMP180GetPressure();
            float altitude = 44330.0f*( 1.0f - pow((pressure/101325.0f), (1.0f/5.255f)));

            pc.printf("Temp: %.1f C\n", temperature);
            pc.printf("Pressure: %.3f Pa\n", pressure);
            pc.printf("Altitude: %.1f m\n", altitude);
            pc.printf("---\n");

            weatherService.updateTemperature(temperature);
            weatherService.updatePressure(pressure);
            weatherService.updateHumidity(0);
                        
            
            batteryService.updateBatteryLevel(battery.read());
        } else {
            ble.waitForEvent();
        }
    }
}