Can't get message from OpenHab to MySensor

I have spent a week at this point trying to get a switch item in OpenHab to turn on an LED in a MySensor. But try as I might no little red light ever turns on and no serial output ever appears which would indicate successful callback. Any help would be appreciated as I don't think my keyboard can take much more head pounding.

Overview
MySensors 1.5.4
OpenHab 1.8 running on RPi (Jessie)
MQTTGateway (MQTT broker/server)

Success
Gateway instantiates
MySensor registers to MQTT Gateway
OpenHab registers to MQTT Gateway
SketchName is posted to OpenHab
SketchVersion is posted to OpenHab
Message data is posted to OpenHab
OpenHab post response
Failure
MySensor incomingMessage never fires

Gateway Sketch

/**
 * The MySensors Arduino library handles the wireless radio link and protocol
 * between your home built sensors/actuators and HA controller of choice.
 * The sensors forms a self healing radio network with optional repeaters. Each
 * repeater and gateway builds a routing tables in EEPROM which keeps track of the
 * network topology allowing messages to be routed to nodes.
 *
 * Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
 * Copyright (C) 2013-2015 Sensnology AB
 * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
 *
 * Documentation: http://www.mysensors.org
 * Support Forum: http://forum.mysensors.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 *******************************
 *
 * REVISION HISTORY
 * Version 1.0 - Created by Daniel Wiegert <daniel.wiegert@gmail.com>
 * 
 * DESCRIPTION
 * MyMQTT Broker Gateway 0.1b
 * Latest instructions found here:
 * http://www.mysensors.org/build/mqtt_gateway
 * http://www.mysensors.org/build/ethernet_gateway
 * 
 * Change below; TCP_IP, TCP_PORT, TCP_MAC
 * This will listen on your selected TCP_IP:TCP_PORT below, Please change TCP_MAC your liking also.
 * 1 -> NOTE: Keep first byte at x2, x6, xA or xE (replace x with any hex value) for using Local Ranges.
 * 2 You can use standard pin set-up as MySensors recommends or if you own a IBOARD you may change
 *	the radio-pins below if you hardware mod your iBoard. see [URL BELOW] for more details.
 *	http://forum.mysensors.org/topic/224/iboard-cheap-single-board-ethernet-arduino-with-radio/5
 *
 * Don't forget to look at the definitions in MyMQTT.h!
 *
 *	define TCPDUMP and connect serial interface if you have problems, please write on
 *	http://forum.mysensors.org/ and explain your problem, include serial output. Don't forget to
 *	turn on DEBUG in libraries\MySensors\MyConfig.h also.
 *
 *	MQTT_FIRST_SENSORID is for 'DHCP' server in MyMQTT. You may limit the ID's with FIRST and LAST definition.
 *	If you want your manually configured below 20 set MQTT_FIRST_SENSORID to 20.
 *	To disable: set MQTT_FIRST_SENSORID to 255.
 *
 *	MQTT_BROKER_PREFIX is the leading prefix for your nodes. This can be only one char if like.
 *
 *	MQTT_SEND_SUBSCRIPTION is if you want the MyMQTT to send a empty payload message to your nodes.
 *	This can be useful if you want to send latest state back to the MQTT client. Just check if incoming
 *	message has any length or not.
 *	Example: if (msg.type==V_LIGHT && strlen(msg.getString())>0) otherwise the code might do strange things.
 *
 * (*) Address-layout is : [MQTT_BROKER_PREFIX]/[NodeID]/[SensorID]/V_[SensorType]
 *	NodeID and SensorID is uint8 (0-255) number.
 *	Last segment is translation of the sensor type, look inside MyMQTT.cpp for the definitions.
 *	User can change this to their needs. We have also left some space for custom types.
 *
 * Special: (sensor 255 reserved for special commands)
 * You can receive a node sketch name with MyMQTT/20/255/V_Sketch_name (or version with _version)
 *
 * To-do:
 * Special commands : clear or set EEPROM Values, Send REBOOT and Receive reboot for MyMQTT itself.
 * Be able to send ACK so client returns the data being sent.
 * ... Please come with ideas!
 * What to do with publish messages.
 *
 * Test in more MQTT clients, So far tested in openhab and MyMQTT for Android (Not my creation)
 * - http://www.openhab.org/
 * - https://play.google.com/store/apps/details?id=at.tripwire.mqtt.client&hl=en
 * ... Please notify me if you use this broker with other software.
 * 
 *  How to set-up Openhab and MQTTGateway:
 * http://forum.mysensors.org/topic/303/mqtt-broker-gateway
 */

#include <DigitalIO.h>
#include <SPI.h>

#include <MySigningNone.h>
#include <MyTransportRFM69.h>
#include <MyTransportNRF24.h>
#include <MyHwATMega328.h>
#include <MySigningAtsha204Soft.h>
#include <MySigningAtsha204.h>

#include <MySensor.h>
#include <MsTimer2.h>
#include <Ethernet.h>
#include "MyMQTT.h"

#include <EEPROM.h>

#define INCLUSION_MODE_TIME 1 // Number of minutes inclusion mode is enabled
#define INCLUSION_MODE_PIN  3 // Digital pin used for inclusion mode button

// * Use this for IBOARD modded to use standard MISO/MOSI/SCK, see note *1 above!
/*
#define RADIO_CE_PIN        3			// radio chip enable
#define RADIO_SPI_SS_PIN    8			// radio SPI serial select
#define RADIO_ERROR_LED_PIN A2  		// Error led pin
#define RADIO_RX_LED_PIN    A1  		// Receive led pin
#define RADIO_TX_LED_PIN    A0  		// the PCB, on board LED
*/

// * Use this for default configured pro mini / nano etc :
///*

#define RADIO_CE_PIN        5		// radio chip enable
#define RADIO_SPI_SS_PIN    6		// radio SPI serial select
#define RADIO_ERROR_LED_PIN 7		// Error led pin
#define RADIO_RX_LED_PIN    8		// Receive led pin
#define RADIO_TX_LED_PIN    9		// the PCB, on board LED*/

#define TCP_PORT 1883						// Set your MQTT Broker Listening port.
IPAddress TCP_IP ( 192, 168, 1, 83 );				// Configure your static ip-address here
byte TCP_MAC[] = { 0x02, 0xDE, 0xAD, 0x00, 0x00, 0x42 };	// Mac-address - You should change this! see note *2 above!

//////////////////////////////////////////////////////////////////

// NRFRF24L01 radio driver (set low transmit power by default) 
MyTransportNRF24 transport(RADIO_CE_PIN, RADIO_SPI_SS_PIN, RF24_PA_LEVEL_GW);  
//MyTransportRFM69 transport;

// Message signing driver (signer needed if MY_SIGNING_FEATURE is turned on in MyConfig.h)
//MySigningNone signer;
//MySigningAtsha204Soft signer;
//MySigningAtsha204 signer;

// Hardware profile 
MyHwATMega328 hw;

// Construct MySensors library (signer needed if MY_SIGNING_FEATURE is turned on in MyConfig.h)
MySensor gw(transport, hw /*, signer*/);


EthernetServer server = EthernetServer(TCP_PORT);
EthernetClient *currentClient = NULL;
MyMessage msg;
char convBuf[MAX_PAYLOAD*2+1];
char broker[] PROGMEM = MQTT_BROKER_PREFIX;
bool MQTTClientConnected = false;
uint8_t buffsize;
char buffer[MQTT_MAX_PACKET_SIZE];
volatile uint8_t countRx;
volatile uint8_t countTx;
volatile uint8_t countErr;


void writeEthernet(const char *writeBuffer, uint8_t *writeSize) {
#ifdef TCPDUMP
	Serial.print(">>");
	char buf[4];
	for (uint8_t a=0; a<*writeSize; a++) { sprintf(buf,"%02X ",(uint8_t)writeBuffer[a]);  Serial.print(buf); } Serial.println("");
#endif
	server.write((const uint8_t *)writeBuffer, *writeSize);
}


void processEthernetMessages() {
  char inputString[MQTT_MAX_PACKET_SIZE] = "";
  byte inputSize = 0;
  byte readCnt = 0;
  byte length = 0;

  EthernetClient client = server.available();
  if (client) {
    while (client.available()) {
      // Save the current client we are talking with
      currentClient = &client;
      byte inByte = client.read();
      readCnt++;

      if (inputSize < MQTT_MAX_PACKET_SIZE) {
        inputString[inputSize] = (char)inByte;
        inputSize++;
      }

      if (readCnt == 2) {
        length = (inByte & 127) * 1;
      }
      if (readCnt == (length+2)) {
        break;
      }
    }
#ifdef TCPDUMP
    Serial.print("<<");
    char buf[4];
    for (byte a=0; a<inputSize; a++) { sprintf(buf, "%02X ", (byte)inputString[a]); Serial.print(buf); } Serial.println();
#endif
    processMQTTMessage(inputString, inputSize);
    currentClient = NULL;
  }
}




void incomingMessage(const MyMessage &message) {
   rxBlink(1);
   sendMQTT(message);
} 



void setup()  
{ 
  Serial.print("Beginning setup");

  //Wipe eprom
  for (int i = 0 ; i < EEPROM.length() ; i++) {
    EEPROM.write(i, 0);
  }

  
  Ethernet.begin(TCP_MAC, TCP_IP);

  
  countRx = 0;
  countTx = 0;
  countErr = 0;

  // Setup led pins
  pinMode(RADIO_RX_LED_PIN, OUTPUT);
  pinMode(RADIO_TX_LED_PIN, OUTPUT);
  pinMode(RADIO_ERROR_LED_PIN, OUTPUT);
  digitalWrite(RADIO_RX_LED_PIN, LOW);
  digitalWrite(RADIO_TX_LED_PIN, LOW);
  digitalWrite(RADIO_ERROR_LED_PIN, LOW);

 
  // Set initial state of leds
  digitalWrite(RADIO_RX_LED_PIN, HIGH);
  digitalWrite(RADIO_TX_LED_PIN, HIGH);
  digitalWrite(RADIO_ERROR_LED_PIN, HIGH);


  // Add led timer interrupt
  MsTimer2::set(300, ledTimersInterrupt);
  MsTimer2::start();


  // give the Ethernet interface a second to initialize
  delay(1000);


  // Initialize gateway at maximum PA level, channel 70 and callback for write operations 
  gw.begin(incomingMessage, 0, true, 0);  

  // start listening for clients
  server.begin();
  
  Serial.println("Ok!");
}

void loop()
{
  gw.process();  
  
  processEthernetMessages();
}





inline MyMessage& build (MyMessage &msg, uint8_t destination, uint8_t sensor, uint8_t command, uint8_t type, bool enableAck) {
	msg.destination = destination;
	msg.sender = GATEWAY_ADDRESS;
	msg.sensor = sensor;
	msg.type = type;
	mSetCommand(msg,command);
	mSetRequestAck(msg,enableAck);
	mSetAck(msg,false);
	return msg;
}

char *getType(char *b, const char **index) {
	char *q = b;
	char *p = (char *)pgm_read_word(index);
	while (*q++ = pgm_read_byte(p++));
	*q=0;
	return b;
}

void processMQTTMessage(char *inputString, uint8_t inputPos) {
	char *str, *p;
	uint8_t i = 0;
	buffer[0]= 0;
	buffsize = 0;

	if ((uint8_t)inputString[0] >> 4 == MQTTCONNECT) {
		buffer[buffsize++] = MQTTCONNACK << 4;
		buffer[buffsize++] = 0x02;			// Remaining length
		buffer[buffsize++] = 0x00;			// Connection accepted
		buffer[buffsize++] = 0x00;			// Reserved
		MQTTClientConnected=true;			// We have connection!
	}
	if ((uint8_t)inputString[0] >> 4 == MQTTPINGREQ) {
		buffer[buffsize++] = MQTTPINGRESP << 4;
		buffer[buffsize++] = 0x00;
	}
	if ((uint8_t)inputString[0] >> 4 == MQTTSUBSCRIBE) {
		buffer[buffsize++] = MQTTSUBACK << 4;		// Just ack everything, we actually dont really care!
		buffer[buffsize++] = 0x03;			// Remaining length
		buffer[buffsize++] = (uint8_t)inputString[2];	// Message ID MSB
		buffer[buffsize++] = (uint8_t)inputString[3];	// Message ID LSB
		buffer[buffsize++] = MQTTQOS0;			// QOS level
	}
	if ((uint8_t)inputString[0] >> 4 == MQTTUNSUBSCRIBE) {
		buffer[buffsize++] = MQTTUNSUBACK << 4;
		buffer[buffsize++] = 0x02;			// Remaining length
		buffer[buffsize++] = (uint8_t)inputString[2];	// Message ID MSB
		buffer[buffsize++] = (uint8_t)inputString[3];	// Message ID LSB
	}
	if ((uint8_t)inputString[0] >> 4 == MQTTDISCONNECT) {
		MQTTClientConnected=false;			// We lost connection!
	}
	if (buffsize > 0) {
		writeEthernet(buffer,&buffsize);
	}

	// We publish everything we get, we dont care if its subscribed or not!
	if ((uint8_t)inputString[0] >> 4 == MQTTPUBLISH || (MQTT_SEND_SUBSCRIPTION && (uint8_t)inputString[0] >> 4 == MQTTSUBSCRIBE)) {
		buffer[0]= 0;
		buffsize = 0;
		// Cut out address and payload depending on message type.
		if ((uint8_t)inputString[0] >> 4 == MQTTSUBSCRIBE) {
			strncat(buffer,inputString+6,inputString[5]);
		} else {
			strncat(buffer,inputString+4,inputString[3]);
		}

#ifdef DEBUG
		Serial.println(buffer);
#endif
		// TODO: Check if we should send ack or not.
		for (str = strtok_r(buffer,"/",&p) ; str && i<4 ; str = strtok_r(NULL,"/",&p)) {
			if (i == 0) {
				if (strcmp_P(str,broker)!=0) {	//look for MQTT_BROKER_PREFIX
					return;			//Message not for us or malformatted!
				}
			} else if (i==1) {
				msg.destination = atoi(str);	//NodeID
			} else if (i==2) {
				msg.sensor = atoi(str);		//SensorID
			} else if (i==3) {
				char match=255;			//SensorType
#ifdef MQTT_TRANSLATE_TYPES				

				for (uint8_t j=0; strcpy_P(convBuf, (char*)pgm_read_word(&(vType[j]))) ; j++) {
					if (strcmp((char*)&str[2],convBuf)==0) { //Strip V_ and compare
						match=j;
						break;
					}
					if (j >= V_TOTAL)  break;
				}

#endif
                                if ( atoi(str)!=0 || str=="0" ) {
					match=atoi(str);
				}

				if (match==255) {
					match=V_UNKNOWN;
 				}
				msg.type = match;
			}
			i++;
		}						//Check if packge has payload
		if ((uint8_t)inputString[1] > (uint8_t)(inputString[3]+2) && !((uint8_t)inputString[0] >> 4 == MQTTSUBSCRIBE)) {
			strcpy(convBuf,inputString+(inputString[3]+4));
			msg.set(convBuf);			//Payload
		} else {
			msg.set("");				//No payload
		}
		txBlink(1);
		if (!gw.sendRoute(build(msg, msg.destination, msg.sensor, C_SET, msg.type, 0))) errBlink(1);

	}
}

void sendMQTT(const MyMessage &inMsg) {
        MyMessage msg = inMsg;
	buffsize = 0;
	if (!MQTTClientConnected) return;			//We have no connections - return
	if (msg.isAck()) {
//		if (msg.sender==255 && mGetCommand(msg)==C_INTERNAL && msg.type==I_ID_REQUEST) {
// TODO: sending ACK request on id_response fucks node up. doesn't work.
// The idea was to confirm id and save to EEPROM_LATEST_NODE_ADDRESS.
//  }
	} else {
		// we have to check every message if its a newly assigned id or not.
		// Ack on I_ID_RESPONSE does not work, and checking on C_PRESENTATION isn't reliable.
		uint8_t newNodeID = gw.loadState(EEPROM_LATEST_NODE_ADDRESS)+1;
		if (newNodeID <= MQTT_FIRST_SENSORID) newNodeID = MQTT_FIRST_SENSORID;
		if (msg.sender==newNodeID) {
			gw.saveState(EEPROM_LATEST_NODE_ADDRESS,newNodeID);
		}
		if (mGetCommand(msg)==C_INTERNAL) {
			if (msg.type==I_CONFIG) {
				txBlink(1);
				if (!gw.sendRoute(build(msg, msg.sender, 255, C_INTERNAL, I_CONFIG, 0).set(MQTT_UNIT))) errBlink(1);
				return;
			} else if (msg.type==I_ID_REQUEST && msg.sender==255) {
				uint8_t newNodeID = gw.loadState(EEPROM_LATEST_NODE_ADDRESS)+1;
				if (newNodeID <= MQTT_FIRST_SENSORID) newNodeID = MQTT_FIRST_SENSORID;
				if (newNodeID >= MQTT_LAST_SENSORID) return; // Sorry no more id's left :(
				txBlink(1);
				if (!gw.sendRoute(build(msg, msg.sender, 255, C_INTERNAL, I_ID_RESPONSE, 0).set(newNodeID))) errBlink(1);
				return;
			}
		}
		if (mGetCommand(msg)!=C_PRESENTATION) {
			if (mGetCommand(msg)==C_INTERNAL) msg.type=msg.type+(S_FIRSTCUSTOM-10);	//Special message
			buffer[buffsize++] = MQTTPUBLISH << 4;	// 0:
			buffer[buffsize++] = 0x09;		// 1: Remaining length with no payload, we'll set this later to correct value, buffsize -2
			buffer[buffsize++] = 0x00;		// 2: Length MSB (Remaing length can never exceed ff,so MSB must be 0!)
			buffer[buffsize++] = 0x08;		// 3: Length LSB (ADDR), We'll set this later
			strcpy_P(buffer+4, broker);
			buffsize+=strlen_P(broker);
#ifdef MQTT_TRANSLATE_TYPES
			if (msg.type > V_TOTAL) msg.type=V_UNKNOWN;// If type > defined types set to unknown.
 			buffsize+=sprintf(&buffer[buffsize],"/%i/%i/V_%s",msg.sender,msg.sensor,getType(convBuf, &vType[msg.type]));
#else
			buffsize+=sprintf(&buffer[buffsize],"/%i/%i/%i",msg.sender,msg.sensor,msg.type);
#endif
			buffer[3]=buffsize-4;			// Set correct address length on byte 4.
#ifdef DEBUG
			Serial.println((char*)&buffer[4]);
#endif
			msg.getString(convBuf);
			for (uint8_t a=0; a<strlen(convBuf); a++) {// Payload
				buffer[buffsize++] = convBuf[a];
			}
			buffer[1]=buffsize-2;			// Set correct Remaining length on byte 2.
			writeEthernet(buffer,&buffsize);
		}
	}
}


void ledTimersInterrupt() {
  if(countRx && countRx != 255) {
    // switch led on
    digitalWrite(RADIO_RX_LED_PIN, LOW);
  } else if(!countRx) {
     // switching off
     digitalWrite(RADIO_RX_LED_PIN, HIGH);
   }
   if(countRx != 255) { countRx--; }

  if(countTx && countTx != 255) {
    // switch led on
    digitalWrite(RADIO_TX_LED_PIN, LOW);
  } else if(!countTx) {
     // switching off
     digitalWrite(RADIO_TX_LED_PIN, HIGH);
   }
   if(countTx != 255) { countTx--; }

  if(countErr && countErr != 255) {
    // switch led on
    digitalWrite(RADIO_ERROR_LED_PIN, LOW);
  } else if(!countErr) {
     // switching off
     digitalWrite(RADIO_ERROR_LED_PIN, HIGH);
   }
   if(countErr != 255) { countErr--; }

}

void rxBlink(uint8_t cnt) {
  if(countRx == 255) { countRx = cnt; }
}
void txBlink(uint8_t cnt) {
  if(countTx == 255) { countTx = cnt; }
}
void errBlink(uint8_t cnt) {
  if(countErr == 255) { countErr = cnt; }
}

excerpt from MyMQTT.h

#define MQTT_FIRST_SENSORID	20  		// If you want manually configured nodes below this value. 255 = Disable
#define MQTT_LAST_SENSORID	254 		// 254 is max! 255 reserved.
#define MQTT_BROKER_PREFIX	"MyMQTT"	// First prefix in MQTT tree, keep short!
#define MQTT_SEND_SUBSCRIPTION 1

Motion Sensor Sketch with Callback

/**
 * The MySensors Arduino library handles the wireless radio link and protocol
 * between your home built sensors/actuators and HA controller of choice.
 * The sensors forms a self healing radio network with optional repeaters. Each
 * repeater and gateway builds a routing tables in EEPROM which keeps track of the
 * network topology allowing messages to be routed to nodes.
 *
 * Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
 * Copyright (C) 2013-2015 Sensnology AB
 * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
 *
 * Documentation: http://www.mysensors.org
 * Support Forum: http://forum.mysensors.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 *******************************
 *
 * REVISION HISTORY
 * Version 1.0 - Henrik Ekblad
 * 
 * DESCRIPTION
 * Motion Sensor example using HC-SR501 
 * http://www.mysensors.org/build/motion
 *
 */

#include <EEPROM.h>
#include <MySensor.h>  
#include <SPI.h>

unsigned long SLEEP_TIME = 30000; // Sleep time between reports (in milliseconds)
#define DIGITAL_INPUT_SENSOR 3   // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)
#define INTERRUPT DIGITAL_INPUT_SENSOR-2 // Usually the interrupt = pin -2 (on uno/nano anyway)
#define NODE_ID  2
#define CHILD_ID 2   // Id of the sensor child
#define LED_PIN  6

MySensor gw;

// Initialize motion message
MyMessage msg(CHILD_ID, V_LIGHT);

void setup()  
{  
  //Wipe eprom
  for (int i = 0 ; i < EEPROM.length() ; i++) {
    EEPROM.write(i, 0);
  }

  pinMode(LED_PIN, OUTPUT);
  digitalWrite(LED_PIN, LOW);
  
  gw.begin(incomingMessage, NODE_ID, false);

  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Motion Sensor", "1.0");

  pinMode(DIGITAL_INPUT_SENSOR, INPUT);      // sets the motion sensor digital pin as input
  // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID, S_LIGHT);
  
}

void loop()     
{     
  // Read digital motion value
  boolean tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH; 
        
  Serial.println(tripped);
  gw.send(msg.set(tripped?"1":"0"));  // Send tripped value to gw 
 
  // Sleep until interrupt comes in on motion sensor. Send update every two minute. 
  gw.sleep(INTERRUPT,CHANGE, SLEEP_TIME);
}

void incomingMessage(const MyMessage &message)
{
     digitalWrite(LED_PIN, HIGH);
     Serial.println("message received");
}

OpenHab.cfg

mqtt:mysensor.url=tcp://192.168.1.83:1883
mqtt:mysensor.clientId=openhab

OpenHab MQTT.items

Switch MQTTTestSwitch  "MQTT Test Switch"  (gBasement)  {mqtt=">[mysensor:MyMQTT/2/2/V_LIGHT:command:ON:1],>[mysensor:MyMQTT/2/2/V_LIGHT:command:OFF:0],<[mysensor:MyMQTT/2/2/V_LIGHT:command:MAP(1on0off.map)]"}

OpenHab MQTT.log on startup

2016-07-25 22:39:53.851 [DEBUG] [.io.transport.mqtt.MqttService:123 ]- Starting MQTT Service...
2016-07-25 22:39:54.506 [INFO ] [.io.transport.mqtt.MqttService:108 ]- MQTT Service initialization completed.
2016-07-25 22:39:54.534 [INFO ] [o.i.t.m.i.MqttBrokerConnection:114 ]- Starting MQTT broker connection 'mysensor'
2016-07-25 22:39:54.613 [DEBUG] [o.i.t.m.i.MqttBrokerConnection:294 ]- Creating new client for 'tcp://192.168.1.83:1883' using id 'openhab' and file store '/tmp/mysensor'
2016-07-25 22:42:40.296 [DEBUG] [.b.mqtt.internal.MqttActivator:34  ]- MQTT binding has been started.
2016-07-25 22:42:41.142 [TRACE] [m.i.MqttGenericBindingProvider:52  ]- Starting to load MQTT config for item MQTTTestSketchName
2016-07-25 22:42:41.162 [DEBUG] [b.mqtt.internal.MqttItemConfig:72  ]- Loaded MQTT config for item 'MQTTTestSketchName' : 1 subscribers, 0 publishers
2016-07-25 22:42:41.176 [DEBUG] [o.i.t.m.i.MqttBrokerConnection:476 ]- Starting message consumer for broker 'mysensor' on topic 'MyMQTT/2/255/V_SKETCH_NAME'
2016-07-25 22:42:41.207 [TRACE] [m.i.MqttGenericBindingProvider:52  ]- Starting to load MQTT config for item MQTTTestSketchVersion
2016-07-25 22:42:41.225 [DEBUG] [b.mqtt.internal.MqttItemConfig:72  ]- Loaded MQTT config for item 'MQTTTestSketchVersion' : 1 subscribers, 0 publishers
2016-07-25 22:42:41.237 [DEBUG] [o.i.t.m.i.MqttBrokerConnection:476 ]- Starting message consumer for broker 'mysensor' on topic 'MyMQTT/2/255/V_SKETCH_VERSION'
2016-07-25 22:42:41.272 [TRACE] [m.i.MqttGenericBindingProvider:52  ]- Starting to load MQTT config for item MQTTTestSwitch
2016-07-25 22:42:41.301 [DEBUG] [b.mqtt.internal.MqttItemConfig:72  ]- Loaded MQTT config for item 'MQTTTestSwitch' : 1 subscribers, 2 publishers
2016-07-25 22:42:41.308 [DEBUG] [o.i.t.m.i.MqttBrokerConnection:476 ]- Starting message consumer for broker 'mysensor' on topic 'MyMQTT/2/2/V_LIGHT'
2016-07-25 22:42:53.947 [DEBUG] [.mqtt.internal.MqttItemBinding:44  ]- Publishing command ON to MyMQTT/2/2/V_LIGHT
2016-07-25 22:42:54.184 [DEBUG] [o.i.t.m.i.MqttBrokerConnection:437 ]- Publishing message 5 to topic 'MyMQTT/2/2/V_LIGHT'
2016-07-25 22:43:03.672 [DEBUG] [.mqtt.internal.MqttItemBinding:44  ]- Publishing command OFF to MyMQTT/2/2/V_LIGHT
2016-07-25 22:43:03.795 [DEBUG] [o.i.t.m.i.MqttBrokerConnection:437 ]- Publishing message 6 to topic 'MyMQTT/2/2/V_LIGHT'

OpenHab Events.log on MySensor startup

2016-07-25 23:42:22 - MQTTTestSketchName state updated to Motion Sensor
2016-07-25 23:42:22 - MQTTTestSketchVersion state updated to 1.0
2016-07-25 23:42:22 - MQTTTestSwitch received command ON

gyro

@Eric-Buhring what do you use for gateway?
Is it arduino + Ethernet + rf24?
Try with mqttclient scetch for gw.
Than setup mqtt server on your network (install mosquitto on controller).

@gyro said:

what do you use for gateway?

Yep, exactly. Genuine Arduino Uno, Gikfun Ethernet Shield W5100, and Addicore nRF24L01

Try with mqttclient scetch for gw.
Than setup mqtt server on your network (install mosquitto on controller).

Yes, I understand that is my next choice if this fails. But it bugs me that I can't get this to work. I did make a feeble attempt down this path and couldn't get the mqttclient to compile. Blown reference to mysensor function.

@gyro said:

Than setup mqtt server on your network (install mosquitto on controller).

I decided to give up being stubborn and took your advice. Downloaded latest MySensors 2.0 and used GatewayW5100MQTTClient sketch from examples. Compiled first time. Radio initialized as wired. Set up mosquitto on RPi. Started watching messages on phone app and two hours later all is working as expected. Never been so happy to see an LED turn on. Now I can get back to building fun stuff.

THANK YOU! THANK YOU! THANK YOU!

gyro

@Eric-Buhring great to hear that you managed to get it working. I have used solution like this (arduino+eth. shield+rf24) for some time.
Now I have switched to esp8266+rf24(version with antenna) as a gateway, it is a cool (and smaller) solution

Can't get message from OpenHab to MySensor

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