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Mozilla Things Gateway First Time Setup Networking Tricks

Project Things by Mozilla

Introduction

Main user guide link: “Things Gateway” by Mozilla

This document provides some tips for bringing up a gateway on a cnference network or other advanced workarounds when you run into a captive portal network or some other local network problem.

Boot the Raspberry Pi and Connect to Local Wi-Fi Network

Insert the uSD card that has been flashed with the Things Gateway image. Wait several minutes. Eventually you'll see the RPi's own Wi-Fi network (SSID) called "Mozilla IoT Gateway".

Mozilla IoT Gateway SSID

Upon connecting to Mozilla IoT Gateway, a welcome screen will pop up automatically, showing a list of other nearby Wi-Fi networks. Select the desired network name from the list, and enter the password. If the list does not pop up, try loading http://192.168.220.1 into your browser.

You can change the Wi-Fi network that the gateway is connected to by powering it up in a new location, where the previous network is not accessbile. It will revert to broadcasting the Mozilla IoT Gateway network name, and you can repeat the above steps. You can provision the gateway for as many different Wi-Fi networks as you want.

Edit Wi-Fi Configuration File Directly

You can alternatively edit the Wi-Fi configuration file directly. For example: sudo vi /etc/wpa_supplicant/wpa_supplicant.conf

You might edit it to look something like the following (you can add multiple networks):

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=US

network={
        ssid="TechConference"
        Key_mgmt=NONE
}

network={
        ssid="mozilla-things"
        psk="some-password”
}

Ways to connect to the RPi:

Wired serial connection between RPi and Laptop USB.

  1. Connect a special USB to TTL serial cable to three GPIO pins to gain direct console access. From your laptop terminal window use the screen command. screen /dev/cu.SLAB_USBtoUART 115200
  2. After the RPi boots, you will see a login: prompt. Enter pi as the user. The default password is raspberry. Be sure to change it with the passwd command right away.

Connect over an IP network using ssh.

  1. Enable ssh by dropping a blank file named "ssh" onto the uSD card.
  2. Connect the Ethernet port to a local network and connect your laptop to that same network, then look up its IP address or try "ping gateway.local" (Linux/MacOS) or "ping -4 gateway.local" (MS Windows 10).
  3. Using ssh, log in as the pi user. For example: ssh pi@192.168.1.xyz.
  4. If obtaining an IP address over Ethernet is not available, connect your laptop to the RPi directly as an access point (to "Mozilla IoT Gateway") then ssh pi@192.168.220.1
  5. Same default raspberry password and warning to change it immediately as noted above.