MQTT Gateway - works, pings but no messages while listening to broker

[cayco]

Hi!

I'm having hard time setting up MQTT ethernet gateway. My gateway is set up on 10.0.35:

magdalena@magdalena-laptop:~$ ping 10.0.0.35
PING 10.0.0.35 (10.0.0.35) 56(84) bytes of data.
64 bytes from 10.0.0.35: icmp_seq=1 ttl=128 time=0.236 ms
^C
--- 10.0.0.35 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.236/0.236/0.236/0.000 ms

I can connect with mosquitto_sub:

magdalena@magdalena-laptop:~$ mosquitto_sub -h 10.0.0.35 -d -t 'MyMQTT/#'
Received CONNACK
Received SUBACK
Subscribed (mid: 1): 0
Sending PINGREQ
Received PINGRESP

On the serial console on gateway I have:

Started!
0;0;3;0;9;read: 20-20-0 s=255,c=3,t=11,pt=0,l=18:Temperature Sensor
0;0;3;0;9;read: 20-20-0 s=255,c=3,t=12,pt=0,l=3:1.0
0;0;3;0;9;read: 20-20-0 s=255,c=0,t=17,pt=0,l=5:1.4.1

^^^ this is my temperature sensor showing

0;0;3;0;9;read: 20-20-0 s=255,c=3,t=6,pt=1,l=1:0
0;0;3;0;9;read: 20-20-0 s=255,c=3,t=11,pt=0,l=18:Temperature Sensor
0;0;3;0;9;read: 20-20-0 s=255,c=3,t=12,pt=0,l=3:1.0

^^^ I restarted the sensor node.

<<10 24 00 06 4D 51 49 73 64 70 03 02 00 3C 00 16 6D 6F 73 71 5F 73 75 62 5F 35 38 37 37 5F 6D 61 67 64 61 6C 65 6E 
>>20 02 00 00 
<<82 06 00 01 00 01 23 00 
>>90 03 00 01 00

^^^ sometimes I get something like this (what is it?)

0;0;3;0;9;read: 20-20-0 s=255,c=0,t=17,pt=0,l=5:1.4.1
0;0;3;0;9;read: 20-20-0 s=255,c=3,t=6,pt=1,l=1:0
0;0;3;0;9;send: 0-0-20-20 s=255,c=3,t=6,pt=0,l=1,st=ok:M
0;0;3;0;9;read: 20-20-0 s=255,c=3,t=11,pt=0,l=18:Temperature Sensor
0;0;3;0;9;read: 20-20-0 s=255,c=3,t=12,pt=0,l=3:1.0
<<C0 00 
>>D0 00 
<<C0 00 
>>D0 00 
<<C0 00 
>>D0 00 

^^^ some more garbage.

I'm using:

Arduino Uno (GW)
Ethernet Shield on W5100

Arduino Pro mini 3,3V

NRF24L01 Radios. SoftSPI enabled.

So the problem is that I do not get anything with mosquittp_sub. What is wrong?

PS. I did not connect decoupling capacitor. Gateway and sensor are laying 5cm besides each other.

[cayco]

OK, I've probably fixed it :)

It was bad connection on Dallas sensor so sensor node did not send any data and that was why I did not receive any :)

But what is this garbage on the serial?
0;0;3;0;9;read: 20-20-0 s=255,c=0,t=17,pt=0,l=5:1.4.1
0;0;3;0;9;read: 20-20-0 s=255,c=3,t=6,pt=1,l=1:0
0;0;3;0;9;send: 0-0-20-20 s=255,c=3,t=6,pt=0,l=1,st=ok:M
0;0;3;0;9;read: 20-20-0 s=255,c=3,t=11,pt=0,l=18:Temperature Sensor
0;0;3;0;9;read: 20-20-0 s=255,c=3,t=12,pt=0,l=3:1.0
0;0;3;0;9;read: 20-20-0 s=0,c=0,t=6,pt=0,l=5:1.4.1
0;0;3;0;9;read: 20-20-0 s=0,c=1,t=0,pt=7,l=5:24.6
MyMQTT/20/0/V_TEMP
>>30 18 00 12 4D 79 4D 51 54 54 2F 32 30 2F 30 2F 56 5F 54 45 4D 50 32 34 2E 36
<<C0 00
>>D0 00

[daulagari]

<<C0 00 
>>D0 00

is a MQTT hartbeat

The 0;0;3;0;9 are gateway log messages.

[Squint]

@cayco Those lines are just the data that is being received/transmitted through the Ethernet module and its showing as HEX.
If you convert the hex to ascii you can see what it is..

In your example you are getting: "**$MQIsdp<mosq_sub_5877_magdalen**"

Here is a good tool: http://www.asciitohex.com/