First of all thanks for sharing your project / knowledge!!

Is it possible to send out actions when a tag is in a room or circle for example?
Something over mqtt would be perfect to me.

Hello, I installed the code in some ESP32 modules, it works well monitoring the ibeacons and reporting all found beacons to MQTT topic, my problem is that after a few hours working, the ESP32 loses connection with the Wifi and is not able to reconnect until I do a reboot. I will appreciate any help

Hi, I have this exact project and it is working fine as described. My aim is to use the beacon coordinates to control movement in a 3d project. I would appreciate much to know how i can save the coordinates and other info such as Mac/uuid to mysql database.

Hi ALL

I was successfully able to upload the sketch to the ESP32 and the device was able to built-up a connectivity to my MQTT Server.

However although the connection was built, no MQTT message is transfered to the server although in the serial monitor I can see that a lot of BLE Devices were found , but nothing is transfered.

The issue must be site here arround in this coding:

payloadString.getBytes(message_char_buffer, payloadString.length() + 1);
result = client.publish("/beacons/office", message_char_buffer, payloadString.length(), false);
Serial.print("PUB Result: ");
Serial.println(result);

If I look to the serial monitor I can see that the Serial.println(result) = 0

If I just use the following coding as a demo: "client.publish("/beacons/office", "hello World")" The message arrived on the MQTT Server

Any tip here? I didnt touch the code

Markus

Hi,

actually it's running fine, but how can i just publish a specified device, and not everything around me? :)

Hello Hautakorpi,

i have installed the demo but can´t get it working.
Mqtt and ESP32 working correctly, but the Dashboard won´t.
Getting following error:
Line 91: 'mqtt' is assigned a value but never used no-unused-vars
I have installed npm install mqtt but it dose't help.

I am pretty new to React, I am having a hard time trying to figure out how to define which mac addresses are stations vs which mac addresses are beacons? If i leave everything as it is, and start the application i can see the mac address of my station, but its not displayed on the map..

Hi, I would like some help... everything is connected, esp32, dashboard, mqtt, but I don't see the information on the screen and neither in the mqtt /beacons/office nor does this topic appear directly in the mqtt

Sketch can be compiled using older library versions (uses 94%):

Linking everything together...
Multiple libraries were found for "WiFi.h"
 Used: /home/jarkko/Arduino/hardware/espressif/esp32/libraries/WiFi
Multiple libraries were found for "BLEDevice.h"
 Used: /home/jarkko/Arduino/libraries/ESP32_BLE_Arduino
Using library WiFi at version 1.0 in folder: /home/jarkko/Arduino/hardware/espressif/esp32/libraries/WiFi 
Using library PubSubClient at version 2.6 in folder: /home/jarkko/Arduino/libraries/PubSubClient 
Using library ESP32_BLE_Arduino at version 0.4.7 in folder: /home/jarkko/Arduino/libraries/ESP32_BLE_Arduino 
Sketch uses 1234222 bytes (94%) of program storage space. Maximum is 1310720 bytes.
Global variables use 77392 bytes (26%) of dynamic memory, leaving 217520 bytes for local variables. Maximum is 294912 bytes.

How to build using older libraries?

Solution1: Checkout old version of ESP32 libraries and rebuild sketch.

1. cd ~/Arduino/hardware/espressif/esp32
2. git checkout 52d47054
3. git submodule update --init --recursive &&
   cd tools &&
   python2 get.py
4. Start/restart Arduino IDE and rebuild sketch

Solution2: You got any ideas? Please comment.

I would love to be able to use the uuid instead the mac, since my phone uses random mac dresses, is that posible?

always getting this result when publish data from esp32,
i just tried
payloadString="";
payloadString+="Hello";
and it is published fine, but i've no idea why actual payloadString isn't able to publish.

Hi,

Consider I have three BLE gateways/stations which receives the RSSI value from the BLE Tag/Beacon. The BLE tag would have sent RSSI value to all the three gateways say for ex,

BLE Tag1 to Gateway1 = -45
BLE Tag1 to Gateway2 = -56
BLE Tag1 to Gateway3 = -61

I have coordinate for all the three gateways like,

Gateway1 = 10,10
Gateway2 = 100,10
Gateway3 = 10,100

Now How to convert the RSSI values as distance in order to proceed with the trilateration technique?

` 25 | if(msg !== null) {

26 | for(let i=0; i<msg.e.length;i++) { <--------
27 | let mac = msg.e[i].m.toLowerCase();
28 | let station = msg.st.toLowerCase();
29 | if(this.stations.includes(station)) {`

Thankyou for created this great project, i need some help in here.

Want to implement 5 gateway to receive and locate ibeacons?
Can i use more gateway rather than 3?

I got the beacons to show up once on the dashboard, but the location of the beacon wasn't accurate. Unfortunately, I can't get any of the scanners to show up on the dashboard now, even though they are posting to the mosquitto server.

Here is a screenshot of the mosquitto server:

The only errors I see are from the ESP32s:

I'm not sure if this is related. Any help would be greatly appreciated. Thanks!

RSSI value keeps on changes it's hard to predict is there any solution to make rsRSSI little stable

Hello There,

i had done this using another guide.
but your map function is i want to check.

i'm running ESP32 code on ESP32 MH et code is running smoothly.
BUT after BLE scan, ESP 32 is not able to connect to any wifi

is there any change in board.txt file()?
or is there any other configuration i have to do?

Thanks