static XDK_Retcode_E Tick(void)
{
    SensorData data;
    uint32_t ret;
    uint32_t retries = 0;

    for(uint32_t sensor = 0; sensor < NUM_SENSORS; ++sensor)
    {
        if(enabledSensors[sensor])
        {
            // Get data
            sensors[sensor](&data);

            for(uint32_t meas = 0; meas < data.numMeas; ++meas)
            {

                for(retries=0; retries<5; retries++){

                    ret = MqttSendData(&data.meas[meas]);
                    // from MQTTClient.h as MQTTPublish returns FAILURE, defined as -1
                    if(0 > ret)
                    {
                        DEBUG_PRINT("Resending MQTT");
                    }
                    else
                    {
                        LedSet(ORANGE_LED, LED_SET_TOGGLE);
                        break;
                    }
                }

                if(0 > ret)
                {
                    DEBUG_PRINT("Sending data FAILED! Restarting WiFi and MQTT!");
                    return XDK_RETCODE_FAILURE;
                }

            }
        }
    }
    return XDK_RETCODE_SUCCESS;
}