nodeからRaspberry Piのwifi接続をコントロールしたいなぁ、でもexecをいちいち叩いていくのは面倒だし、と思っていたら、moduleを作ってくれている人がいました。ネットには神が沢山います。wifi-control このmoduleは実際にはnmcliのフロントエンドに過ぎないので、使用するためにはまずnmcliをインストールします。
pi@raspberrypi:~ $ sudo apt-get install network-managerReading package lists... DoneBuilding dependency treeReading state information... DoneThe following packages were automatically installed and are no longer required: fuse libfuse2Use 'apt-get autoremove' to remove them.The following extra packages will be installed: dconf-gsettings-backend dconf-service dns-root-data dnsmasq-base glib-networking glib-networking-common glib-networking-services gsettings-desktop-schemas iputils-arping libdbus-glib-1-2 libdconf1 libgudev-1.0-0 libjim0.75 libmbim-glib4 libmbim-proxy libmm-glib0 libmnl0 libndp0 libnetfilter-conntrack3 libnm-glib4 libnm-util2 libpam-systemd libpcap0.8 libpolkit-agent-1-0 libpolkit-backend-1-0 libpolkit-gobject-1-0 libproxy1 libqmi-glib1 libsoup2.4-1 libteamdctl0 modemmanager policykit-1 ppp usb-modeswitch usb-modeswitch-dataSuggested packages: avahi-autoipd libteam-utils comgt wvdialThe following NEW packages will be installed: dconf-gsettings-backend dconf-service dns-root-data dnsmasq-base glib-networking glib-networking-common glib-networking-services gsettings-desktop-schemas iputils-arping libdbus-glib-1-2 libdconf1 libgudev-1.0-0 libjim0.75 libmbim-glib4 libmbim-proxy libmm-glib0 libmnl0 libndp0 libnetfilter-conntrack3 libnm-glib4 libnm-util2 libpam-systemd libpcap0.8 libpolkit-agent-1-0 libpolkit-backend-1-0 libpolkit-gobject-1-0 libproxy1 libqmi-glib1 libsoup2.4-1 libteamdctl0 modemmanager network-manager policykit-1 ppp usb-modeswitch usb-modeswitch-data0 upgraded， 36 newly installed， 0 to remove and 13 not upgraded.Need to get 190 kB/5，431 kB of archives.After this operation， 20.8 MB of additional disk space will be used.Do you want to continue? [Y/n] YWARNING: The following packages cannot be authenticated! libdbus-glib-1-2 libdconf1 libgudev-1.0-0 libmbim-glib4 libmm-glib0 libndp0 libmnl0 libnetfilter-conntrack3 libnm-util2 libnm-glib4 libpam-systemd libpcap0.8 libpolkit-gobject-1-0 libpolkit-agent-1-0 libpolkit-backend-1-0 libproxy1 libqmi-glib1 glib-networking-common glib-networking-services dconf-service dconf-gsettings-backend gsettings-desktop-schemas glib-networking libsoup2.4-1 libteamdctl0 libjim0.75 dns-root-data dnsmasq-base libmbim-proxy modemmanager policykit-1 network-manager ppp iputils-arping usb-modeswitch-data usb-modeswitchInstall these packages without verification? [y/N] y
「インストールするのか？本気かよ」みたいな聞き方をされると不安ではありますが、ここはレポジトリを信頼するしか無いのです。ボットになったらどうしましょ。
Setting up policykit-1 (0.105-8) ...Setting up network-manager (0.9.10.0-7) ...The following network interfaces were found in /etc/network/interfaceswhich means they are currently configured by ifupdown:- eth0- wlan0- wlan1If you want to manage those interfaces with NetworkManager insteadremove their configuration from /etc/network/interfaces.Setting up ppp (2.4.6-3.1) ...Setting up iputils-arping (3:20121221-5) ...
ご丁寧にもinterfacesに書いてあったらダメよと指摘してくれましたので、interfacesからwlan1の設定を削除しておきました。
var WiFiControl = require('wifi-control');export var init = () => { // Initialize wifi-control package with verbose output WiFiControl.init({ debug: true }); var settings = { debug: true || false， iface: 'wlan1'， connectionTimeout: 10000 // in ms }; WiFiControl.configure(settings);}export var scanForWiFi = () => { // Try scanning for access points: WiFiControl.scanForWiFi( function(err:any， response:any) { if (err) console.log(err); console.log(response); });}
公式のサンプルに従いこんな感じ。するとこんな感じでスキャン結果が取得できました。
WiFiControl: Debug mode set to: trueWiFiControl: Determining system wireless interface...WiFiControl: Host machine is Linux.WiFiControl: Executing: nmcli -m multiline device status | grep wlanWiFiControl: Automatically located wireless interface wlan1.WiFiControl: Debug mode set to: trueWiFiControl: AP connection attempt timeout set to: 10000msWiFiControl: Wireless interface manually set to wlan1.WiFiControl: Scanning for nearby WiFi Access Points...WiFiControl: Nearby WiFi APs successfully scanned (11 found).{ success: true， msg: 'Nearby WiFi APs successfully scanned (11 found).'， networks: [ { ssid: 'aterm-d014ce-g'， channel: '6'， signal_level: '70'， security: 'WPA1 WPA2' }， { ssid: 'AP-2F-YA-2.4GHz'， channel: '13'， signal_level: '47'， security: 'WPA1 WPA2' }， { ssid: 'AP-2F-YU-2.4GHz'，
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