I use a cheap Chinese 5100 module together with the MQTT gateway and it is warm but have not measured any actual temperature. Works 24 hours a day (now for a couple of months). Most problems have been due to the MQTT code implementation itself . But for most "simple" sensors it runs OK with Openhab.
@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/
@5546dug
Yes I think you need 1.4.1 or latest. The messages you see (0;0;3;9...) are traffic in the wireless sensor network.
My problem appeared again. The EthernetGateway responds to Ping but Vera plugin says:
"Cannot send command - communications error"
So perhaps increasing power could help, but how? Is adding capacitors enough?? Like for the radio there already is one..
The only thing I can guess is the Stepup module is emitting a frequency that the SR04 is picking up as the "echo" to the "ping" it sends out on trigger.
Can you post a photo of how your setup looks like?
If it is really interference shielding might help.
I agree with @griffinsaic, power is most likely your issue but another thing to check is interference, see the Issues with multiple gateways + choosing frequency / channel thread.
One last thing I'd like to clarify after re-reading my previous post.
The correct send string I entered in the terminal is without trailing ";" - like it was supposed before. As mentioned, the problem has been the BAUD rate of 156k with 8MHz crystal..
So the correct command which will change the PWM -Dimmer level on node 3 to 50% is:
3;0;1;0;3;50\n
Seems to be same issue as I posted in "RTC sensor and Openhab". I guessed the problem was on the Openhab side but looking at the output from the various logs it seems that the MQTT causes this and this post points to the same cause.
@hek
Just a hunch, could it be the radio that somehow is stuck in receive mode, and not going to sleep?
If I remember correctly from the datasheet, it almost uses the same current in both transmit and receive mode (~14mA)
/ Thomas
I compile the example sketch fine with IDE 1.5.7.
Do you have uncommented the #define SOFTSPI in RF24_config.h for some reason (eg programming your gateway)?. If so comment it back again.
@ericvdb
Yes, I know about the 5V. But the adapter brings it down to 3.3V for the radio, that is the reason for using it and the adapter is equipped with the AMS 1117 3.3V chip. Seems to work OK but I really do not have any hard facts to prove it.
One thing I may test is to wire the 5V also directly to this adapter instead of taking it out from the Arduino 5V pin. This is to find out if this Arduino Nano clone might have too small capacity for feeding the radio at certain occasions.
