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MQTT Gateway

Why do you need Meshtastic + mqtt​

Integrating MQTT with Meshtastic extends off-grid communication by bridging distant networks. This enables global messaging, provides a backup when mesh signals are weak, and ensures faster message delivery via the internet. Perfect for remote areas and emergency situations.

Hardware Preparation​

Setting up a Meshtastic Gateway requires a device that can both run LoRa and Wifi. Additionally, if you want to share your gateway's location via mqtt, you can add a GPS module.

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Set Up​

Step1 Flash Firmware​

Visit Meshtastic Web Flasher.

Select the target device to Seeed Wio Tracker L2 and choose the latest firmware, then click Flash.

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Switch on the device, click Enter DFU Mode, there will be a serial port named Tracker L2, click and connect it.

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And then click "Flash". Don't forget to tick "Full Erase and Install" if you want to cover previous firmware.

Step2 Check your Device ID​

The last four digit of the MAC address is the device ID

For example, the device ID of the device below would be A0D4

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Step3 APP Connection​

Go to Setting page, click Reboot/Shutdown, then click the Bluetooth icon.

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The device will then reboot in Bluetooth mode. The Bluetooth pairing code will be shown on the screen.

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Click here to download Meshtastic APP.

Pair your device with your phone APP.

  • Select the target device on the Bluetooth panel.

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  • Enter the code shown on the screen and then click Pair to connect the device.

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Step4 Set up Xiao ESP32S3 Mesh-mqtt Gateway​

1. LoRa Configuration

  • change the region from UNSET to your country/region (e.g., EU868 for Europe, US for USA, etc.).
  • Choose OK to MQTT
  • Click Send
  • The device reboots and reconnects automatically. The device will automatically reboot and reconnect. This may take 30s to 2 mins.

2. MQTT Configuration

  • You can use the default MQTT Address(mqtt.meshtastic.org), User name(meshdev) and Password(large4cats).
  • Choose MQTT Enabled
  • Choose MQTT Client Proxy Enabled
  • (Optional)If you want other mqtt users to see you on the map, please choose Map Reporting and I agree.
  • Click Send
  • The device reboots and reconnects automatically. The device will automatically reboot and reconnect. This may take 30s to 2 mins.

3. Chanel Configuration

  • open Uplink enabled and Downlink enabled for your primary chanel
  • Click Send

4. Network Configuration

After this configuration, your device will not be able to connect to your APP via Bluetooth. But it can connect to your APP via network.

  • Fill in the SSID (Wifi Name) and the Wifi password. The wifi you expect to use should be 2.4G.
  • Click Send
  • The device reboots automatically.

5. APP Connection

Now your device can not be connected via Bluetooth. But you can connect via Network.

Messgage Sending​

Now you can communicate with other people from internet.

If you have another Meshtastic device that is in the same frenquency band with the MQTT Gateway, it can transmit message via the L2 gateway with other people in internet too.

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