It was a problem to connect to rpi. I don’t know why ! If i change the port number 1883, i have this message on rpi console :
192.168.218.149 – – [30/Nov/2021 15:01:03] code 400, message Bad HTTP/0.9 request type (‘\x10\x19\x00\x04MQTT\x04\x02\x00\x0f\x00’)
ESP8266Client” HTTPStatus.BAD_REQUEST -03] “MQTT

It work with this url “broker.mqtt-dashboard.com”

I have a problem with mqtt connection. It failed with rc=-2…

I have the same code in both pyton and ESP8266 code.

Can you help me with the value of rc state ?

Thank in advance
Thomas

can I ask you something please?

Inside the python script, you are using:

“”
def action(board, changePin, action):
# Convert the pin from the URL into an integer:
changePin = int(changePin)
# Get the device name for the pin being changed:
devicePin = pins[changePin][‘name’]

“”
Can you tell me why you define devicePin? I guess you’re making a link to board in the next few lines, but i dont get it 🙂

if action == “1” and board == ‘esp8266’:
mqttc.publish(pins[changePin][‘topic’],”1″)
pins[changePin][‘state’] = ‘True’

thx

Hi.
This particular project only works on your local network.
But if you install a broker on a cloud server you can control from anywhere. Take a look at this tutorial: https://randomnerdtutorials.com/cloud-mqtt-mosquitto-broker-access-anywhere-digital-ocean/
Regards,
Sara

Python3, maybe fixed it? I ran the sudo python3 app.py and reloaded the web page.
Pi is running Jessie w/py2 and 3 pre-installed

sudo python3 app.py
* Running on http://0.0.0.0:8181/
* Restarting with reloader
192.168.10.200 – – [11/May/2020 13:59:25] “GET / HTTP/1.1” 200 –
192.168.10.200 – – [11/May/2020 13:59:27] “GET /favicon.ico HTTP/1.1” 404 –
192.168.10.200 – – [11/May/2020 13:59:36] “GET /esp8266/4/1 HTTP/1.1” 200 –
192.168.10.200 – – [11/May/2020 13:59:41] “GET /esp8266/5/1 HTTP/1.1” 200 –

This site can’t be reached192.168.10.246 refused to connect.
Try:

Checking the connection
Checking the proxy and the firewall
ERR_CONNECTION_REFUSED

Sounds like a priv/perm thing,

Thank in advance

ESP IP address: 192.168.10.246
Attempting MQTT connection…connected

For starters, thanks for all the work you’ve done creating your turtorials!!! I’ve been using them to learn the ESP and Arduino plateforms. However,
I’m having issues getting this one to work. When running the python script, I get differnt output. I only two lines of output and it hangs on
the second line, ie, doesn’t return to cmd prompt or any other output.

python script hangs with “* Restarting with reloader”

web-server:

$ python -V
Python 2.7.9

$ ls
app.py templates

$ sudo python app.py
* Running on http://0.0.0.0:8181/
* Restarting with reloader
[this is where it hangs]