BLE Gateway on ESP32

Theengs OpenMQTTGateway Bluetooth gateways
1

Hi I have successfully compiled and uploaded the BLE Gateway to my ESP 32 and it works as expected. Platform IO Arduino environment.
However I have two issues, one is that I can not access the web interface anymore after I configured the unit to connect to my WiFi AP. It is configured DHCP and it receives an address and I can ping it. It also delivers the beacon reads to the MQTT topic as expected.

Secondly it looks like the gateway it is not accepting ( subscribing) the MQTT topic to change its scan settings e.g. if I want to change from the default 66 sec for the scan interval to 10 sec.

Thanks in advance for your help

2

Hello,

This is the current behaviour. If you want to reconfigure you can press the TRIGGER_PIN for more than 10s to reset settings.

Could you give the commands that you are sending by mqtt?

3

Thank you very much for your prompt response and your much appreciated help.

This is the command I issue from a local (layer 2) connected PC

mosquitto_pub -h 10.10.10.13 -t home/OpenMQTTGateway/commands/MQTTtoBT/set -m ‘{“interval”:0}’

Monitoring the MQTT server locally shows on the console

home/OpenMQTTGateway/commands/MQTTtoBT/set {“interval”:0}

I have tried to run the command local with the same result.

4

Thanks, could you give also the version of OMG used ?
Would it be possible to have a serial monitor extract when you process the command ?

5

Hi, thanks for your help. I think I now understand what is happening.
I’m running v0.9.2/ESP32_OpenMQTTGateway_V092_BLE

When I issue the MQTT command and the ESP receives it from the topic as expected.

Console output = BT Task running on core 0
Then the the program listen for about ~40 seconds for advertisements.

In my case I have beacon which advertise every second, I expected the result as soon as one of the beacon chirped, that is obviously not the case! and not needed for this application.

I will look into the code and see if I can modify it, I’m after a BLE scanner which immediately reports a chirp, I’m using this only for location tracking.

I would like to take this opportunity to thank you and all the contributors for this outstanding project, well done!

As a suggestion, I would like to buy you guys a Tea but I’m not so keen to use my credit card, any way I can make a donation via PayPal?

Cheers

6

Hello,

Do you get this log in the serial monitor :

"BLE interval set"

If not there is a problem somewhere.

Thanks for the feedback.

Yes I will send you an email adress.

7

Hi I monitored the serial output and after issuing:
mosquitto_pub -h 10.10.10.13 -t home/OpenMQTTGateway/commands/MQTTtoBT/set -m ‘{“interval”:0}’
I don’t see any "BLE interval set"

I see the received message on the MQTT server arriving when monitoring the MQTT broker.
home/OpenMQTTGateway/commands/MQTTtoBT/set {“interval”:0}

However the serial out put shows nothing at that time. Below this output which shows after (in this case) 20 seconds, when I issued the MQTT command to set the interval to 0.
It would led to believe that the MQTT command is not picked up by the ESP. Could this be a timing issue?

Thanks again for all your help.

From what I can see it processes its normal loop and the MQTT input is not changing its behavior.
10:49:57.950 -> Creating BLE buffer
10:49:57.950 -> device detected
10:49:57.950 -> xx:xx:xx:xx
10:49:57.950 -> BLErssi
10:49:57.950 -> -61
10:49:57.950 -> txPower
10:49:57.950 -> -59
10:49:57.950 -> BLE DISTANCE :
10:49:57.950 -> 1.27
10:49:57.950 -> Pub json into:
10:49:57.950 -> home/home_presence/OpenMQTTGateway_ESP32_BLE
10:49:57.950 -> {“id”:“xx:xx:xx:xx:xx:xx”,“name”:“OnyxBeacon”,“manufacturerdata”:“L”,“rssi”:-61,“distance”:1.274439}
10:49:57.983 -> Pub data per topic
10:49:57.983 -> id
10:49:57.983 -> xx:xx:xx:xx
10:49:57.983 -> name
10:49:57.983 -> OnyxBeacon
10:49:57.983 -> manufacturerdata
10:49:57.983 -> L
10:49:57.983 -> rssi
10:49:57.983 -> -61
10:49:57.983 -> distance
10:49:57.983 -> 1.27
10:49:57.983 -> Get services data :
10:49:57.983 -> 1
10:49:57.983 -> Pub json into:
10:49:57.983 -> home/OpenMQTTGateway_ESP32_BLE/BTtoMQTT/xx:xx:xx:xx
10:49:57.983 -> {“id”:“xx:xx:xx:xx”,“name”:“OnyxBeacon”,“manufacturerdata”:“L”,“rssi”:-61,“distance”:1.274439,“servicedata”:“xx:xx:xx:xx”,“servicedatauuid”:“xx:xx:xx:xxxx:xx:xx:xxxx:xx:xx:xx”}
10:49:58.598 -> Pub data per topic
10:49:58.598 -> id
10:49:58.598 -> xx:xx:xx:xx
10:49:58.598 -> name
10:49:58.598 -> OnyxBeacon
10:49:58.598 -> manufacturerdata
10:49:58.598 -> L
10:49:58.598 -> rssi
10:49:58.598 -> -61
10:49:58.598 -> distance
10:49:58.598 -> 1.27
10:49:58.598 -> servicedata
10:49:58.598 -> xx:xx:xx:xx
10:49:58.598 -> servicedatauuid
10:49:58.598 -> xx:xx:xx:xx
10:50:07.738 -> BT Task running on core 0

8

This is due to the fact that the command doesn’t correspond to your gateway_name,

you should try:
mosquitto_pub -h 10.10.10.13 -t home/OpenMQTTGateway_ESP32_BLE/commands/MQTTtoBT/set -m ‘{"interval":0}’