手把手教你通过串口调试模块连接wifi

首先你要下载两个软件： sudo apt-get install vim dialog 复制代码 然后编写一个脚本： sudo vim wifi.sh 复制代码 脚本内容如下： #!/bin/sh # From wlanconfig: # $FreeBSD: src/usr.sbin/bsdinstall/scripts/wlanconfig,v 1.3.2.1 $ # # Author: [e-mail] # # default wlan iface=wlan0 # driver device dev=$(sysctl -n net.wlan.0.%parent) if ifconfig $dev >/dev/null 2>&1 ; then     phy_iface=$dev else     phy_iface=ath0 fi # use system wpa_supplicant.conf wpa_supplicant_conf=/etc/wpa_supplicant.conf # network id -1 non exist current_id=-1 # use default wpa_supplicant.conf use_conf=1 usage () {     cat <<EOF Usage: $0               default $0 -l/list       use saved configured network, do not scan. So make sure the AP exist. $0 stop          stop wifi connection $0 reconfig      re-configure device $0 newconf       create new /etc/wpa_supplicant.conf $0 addif         if not set rc.conf wlan configure; means does not exist $iface currently. $0 ns 127.0.0.1  set this nameserver $0 help/-h/--help EOF     exit 0 } check_network () {     local _ssid=$1     local _id=`wpa_cli -i $iface list_networks | awk '$2~/^'"$_ssid"'$/{print $1}' | head -1`     if [ -z $_id ] ; then         echo -1     else         echo $_id     fi } update_psk () {     local _ssid=$1     local _psk=$2     if [ ${#_psk} -lt 8 ] ; then         echo psk length max be 8..63         exit 1     fi     local _id=`check_network "$_ssid"`     local _pass=`wpa_passphrase $_ssid $_psk | sed -n 's/[^#]psk=\(.*\)/\1/p'`     wpa_cli -i $iface set_network $_id psk $_pass } stop_wifi () {     ifconfig $iface down delete     exit 0 } cfg_dev () {     ifconfig $iface create wlandev $phy_iface     ifconfig $iface up     /etc/rc.d/wpa_supplicant start $iface } recfg_dev () {     ifconfig $iface down delete     ifconfig $iface destroy     ifconfig $phy_iface down     ifconfig $phy_iface up     ifconfig $iface create wlandev $phy_iface     ifconfig $iface up } wpa_lookup () { # Try to reach wpa_supplicant. If it isn't running and we can modify the # existing system, start it. Otherwise, fail. # Here use the existing system script /etc/rc.d/wpa_supplicant     (wpa_cli -i $iface ping >/dev/null 2>/dev/null ||        /etc/rc.d/wpa_supplicant start $iface) || \             (dialog --backtitle "FreeBSD Wifi" --title "Error" --msgbox \             "Could not start wpa_supplicant!" 0 0; exit 1) || exit 1 # See if we succeeded     wpa_cli -i $iface ping >/dev/null 2>/dev/null     if [ $? -ne 0 ] ; then             dialog --backtitle "FreeBSD Wifi" --title "Error" --msgbox \                 "Wireless cannot be configured without making changes to the local system!" \ 0 0             exit 1     fi } final () {     local nw=$1     local nid=$2     wpa_cli -i $iface disconnect     ifconfig $iface ssid $nw     wpa_cli -i $iface select_network $nid     wpa_cli -i $iface enable_network $nid     wpa_cli -i $iface reconnect     wpa_cli -i $iface save_config     dhclient -b $iface     exit 0 } case $1 in     stop)         stop_wifi ;;     -l|list)         wpa_lookup         wpa_cli -i $iface list         echo "Please enter the network id:"         read current_id         if [ $current_id -lt 0 -o $current_id -ge 64 ] ; then             # too small or too big try again             wpa_cli -i $iface list             echo "Please enter the network id:"             read current_id         fi         NETWORK=`wpa_cli -i $iface list | awk '{if($1=='"$current_id"'){print $2}}'`         final $NETWORK $current_id         ;;     reconfig)         recfg_dev ;;     newconf)         use_conf=0 ;;     addif)         cfg_dev ;;     ns)         if [ ! -z $2 ] ; then             if ! grep -q $2 /etc/resolv.conf ; then                 echo $2 >> /etc/resolv.conf             fi         fi         ;;     -h|--help|help)         usage ;; esac use_wificfg () {     if [ -f $wpa_supplicant_conf ] ; then         if [ $use_conf = 1 ] ; then             # using wificfg             return 0         else             echo "Backup $wpa_supplicant_conf ..."             mv $wpa_supplicant_conf ${wpa_supplicant_conf}.old             return 1         fi     else         # can use wificfg         return 1     fi } if use_wificfg ; then     echo "Using $wpa_supplicant_conf ." else     echo -n > $wpa_supplicant_conf     chmod 0600 $wpa_supplicant_conf     echo "ctrl_interface=/var/run/wpa_supplicant" >> $wpa_supplicant_conf     echo "eapol_version=2" >> $wpa_supplicant_conf     echo "fast_reauth=1" >> $wpa_supplicant_conf     echo "update_config=1" >> $wpa_supplicant_conf     echo >> $wpa_supplicant_conf fi ## progress ... wpa_lookup wpa_cli -i $iface ap_scan 1 wpa_cli -i $iface scan dialog --backtitle "FreeBSD Wifi" --title "Scanning" --ok-label "Skip" \         --pause "Waiting 5 seconds to scan for wireless networks..." \         9 40 5 || exit 1 SCAN_RESULTS=`wpa_cli -i $iface scan_results` NETWORKS=`echo "$SCAN_RESULTS" | awk -F '\t' \     '/..:..:..:..:..:../ {if (length($5) > 0) printf("\"%s\"\t%s\n", $5, $4);}' |     sort | uniq` if [ -z "$NETWORKS" ] ; then         dialog --backtitle "FreeBSD Wifi" --title "Error" \             --yesno "No wireless networks were found. Rescan?" 0 0 && \             exec $0 $@         exit 1 fi exec 3>&1 NETWORK=`sh -c "dialog --extra-button --extra-label \"Rescan\" \     --backtitle \"FreeBSD Wifi\" --title \"Network Selection\" --menu \     \"Select a wireless network to connect to.\" 0 0 0 \     $(echo $NETWORKS | tr '\n' ' ')" 2>&1 1>&3` case $? in     0)        # OK             ;;     1)        # Cancel             exit 1             ;;     3)        # Rescan             exec $0 $@             ;; esac exec 3>&- current_id=`check_network "$NETWORK"` if [ $current_id -ge 0 ] ; then     sh -c "dialog --backtitle \"FreeBSD Wifi\" --title \"Connect to Network\" --yesno \"Connect to configured network: $NETWORK ?\" 0 0"     if [ $? -eq 0 ] ; then         final $NETWORK $current_id     fi fi ENCRYPTION=`echo "$NETWORKS" | awk -F '\t' \     "/^\"$NETWORK\"\t/ {printf(\"%s\n\", \\\$2 );}"` if echo $ENCRYPTION | grep -q 'PSK' ; then         exec 3>&1         PASS=`dialog --insecure --backtitle "FreeBSD Wifi" \             --title "WPA Setup" --mixedform "" 0 0 0 \                 "SSID" 1 0 "$NETWORK" 1 12 0 0 2 \                 "Password" 2 0 "" 2 12 15 63 1 \                 2>&1 1>&3` \             || exec $0 $@         exec 3>&-     if [ $current_id -ge 0 ] ; then         update_psk "$NETWORK" "$PASS"     else         current_id=`wpa_cli -i $iface add_network | tail -1`         wpa_cli -i $iface set_network $current_id ssid "\"$NETWORK\""         update_psk "$NETWORK" "$PASS"     fi elif echo $ENCRYPTION | grep -q WEP ; then         exec 3>&1         WEPKEY=`dialog --insecure --backtitle "FreeBSD Wifi" \             --title "WEP Setup" --mixedform "" 0 0 0 \                 "SSID" 1 0 "$NETWORK" 1 12 0 0 2 \                 "WEP Key 0" 2 0 "" 2 12 15 0 1 \                 2>&1 1>&3` \             || exec $0 $@     if [ $current_id -ge 0 ] ; then         wpa_cli -i $iface set_network $current_id wep_key0 "\"$WEPKEY\""     else         current_id=`wpa_cli -i $iface add_network | tail -1`         wpa_cli -i $iface set_network $current_id ssid "\"$NETWORK\""         wpa_cli -i $iface set_network $current_id key_mgmt "NONE"         wpa_cli -i $iface set_network $current_id wep_tx_keyidx 0         wpa_cli -i $iface set_network $current_id wep_key0 "\"$WEPKEY\""     fi else        # Open     if [ $current_id -ge 0 ] ; then         echo "Use Open Network $NETWORK"     else         current_id=`wpa_cli -i $iface add_network | tail -1`         wpa_cli -i $iface set_network $current_id ssid "\"$NETWORK\""         wpa_cli -i $iface set_network $current_id key_mgmt "NONE"     fi fi final $NETWORK $current_id 复制代码 最后给它一个执行权限 sudo chmod +x wifi.sh 复制代码 执行 ./wifi.sh 复制代码