Issue: Sensor will not establish connection with MQTT Mosquitto Broker, solid white LED.
Request: Please provide guidance to verify NCD Sensor MQTT settings! I can connect an MQTTX pub/sub client on a separate PC to the broker via static ip over network, but the sensor will not connect to the broker with this same ip.
Sensor: WiFi MQTT Temperature/Humidity Sensor
MQTT Broker: Mosquitto from CLI on a Windows PC
configuration file settings:
allow_anonymous true
listener 1883 0.0.0.0
MQTT Subscriber(s): MQTTX on separate PC, Mosquitto CLI in separate window
MQTT Publisher(s): MQTTX on separate PC, Mosquitto CLI in separate window; NCD Temp/Humidity Sensor
Connection method: A wifi hotspot broadcast from a usb wifi module connected to the broker/host desktop PC.
NCD settings:
Wifi configured for local hotspot, DCHP enabled;
no changes to SoftAP;
no changes to Sensor Settings;
MQTT:
broker ip - see below
port - 1883
clientid - TempHumid
no user, no pass, TLS disabled, no certs, no key, no settings topic
I have setup a mosquitto MQTT broker, successfully published, subscribed and read topics from MQTTX and CLI. The desktop running the broker is broadcasting a wifi hotspot. MQTTX is deployed on a separate PC, connected via wifi, & had the broker desktop’s static ip address as the MQTT host address. The NCD sensor is set to the same static ip for the broker address. The NCD sensor successfully connects to the hotspot, but does not connect to the broker using the static IP address of the host desktop.
I have attempted the following configurations for the MQTT address:
host_desktop_hotspot_static_ip
mqtt://host_desktop_hotspot_static_ip
127.0.0.1
What could I be missing in this setup? Thank you so much in advance!
Can you try running MQTT Explorer here on another computer connected to the computer running Mosquitto/MQTT Broker:
I’m wondering if a firewall on the windows computer is preventing the incoming connection on port 1883. This is why I’m suggesting testing using an MQTT client on a separate computer.
This is a good suggestion, but I already completed this troubleshooting by connecting an MQTT client on a separate computer as described above.
I think I found my issue. I had a spare temp/humidity sensor, and set it up this morning. It connected to my broker & began publishing with 0 issues. The only difference I can find between it and my first sensor is the new one is “version 1.0.10,” the first is “version 1.0.0.”
Is there any way I can update the software for my first sensor? Edit: Otherwise, how can I go about resetting or repairing the first sensor?
Uploaded firmware.bin with “firmware” selected for v1.0.10. Received OTA success message.
Sensor rebooted, but my PC could not reestablish connection to its SoftAP network, and its LED stayed flashing white.
Pressed CFG button.
Able to connect to the SoftAP network.
Within the same page http://192.168.0.1/update, clicked back, selected “filesystem” and uploaded the spiffs.bin file.
After this completed, the sensor rebooted, but is now unresponsive (It is now not broadcasting SoftAP & its LED is flashing red. Pressing the CFG button does not set it back to configure mode.)
Would you please advise next steps I could take to resolve this? Thank you again!
I tried: