How to setup vlans for dynamic PSK on router with 1 SSID?

Installing and Using OpenWrt Network and Wireless Configuration
16

OK
copy & paste to your device & reboot

edit:
vlan1 is untagged on all LAN
LAN4 is trunk
since we still using "fantasy name" 'lan', dhcp server on vlan1 will work out of box
for other vlan's, you will need to setup dhcp server from LuCI

/etc/config/network

config interface 'loopback'
        option device 'lo'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'

config device
        option name 'lan1'
        option macaddr 'e8:9f:80:a2:c6:fa'

config device
        option name 'lan2'
        option macaddr 'e8:9f:80:a2:c6:fa'

config device
        option name 'lan3'
        option macaddr 'e8:9f:80:a2:c6:fa'

config device
        option name 'lan4'
        option macaddr 'e8:9f:80:a2:c6:fa'

config device
        option name 'wan'
        option macaddr 'e8:9f:80:a2:c6:f9'

config device
        option type 'bridge'
        option vlan_filtering '1'
        option name 'br-lan'
        list ports 'lan1'
        list ports 'lan2'
        list ports 'lan3'
        list ports 'lan4'

config bridge-vlan
        option device 'br-lan'
        option vlan '1'
        list ports 'lan1:u*'
        list ports 'lan2:u*'
        list ports 'lan3:u*'
        list ports 'lan4:u*'

config bridge-vlan
        option device 'br-lan'
        option vlan '10'
        list ports 'lan4:t'

config bridge-vlan
        option device 'br-lan'
        option vlan '20'
        list ports 'lan4:t'

config bridge-vlan
        option device 'br-lan'
        option vlan '30'
        list ports 'lan4:t'

config bridge-vlan
        option device 'br-lan'
        option vlan '40'
        list ports 'lan4:t'

config interface 'lan'
        option device 'br-lan.1'
        option proto 'static'
        option ipaddr '192.168.5.1'
        option netmask '255.255.255.0'
        option ip6assign '60'

config interface 'vlan10'
        option device 'br-lan.10'
        option proto 'static'
        option ipaddr '192.168.10.1'
        option netmask '255.255.255.0'
        
config interface 'vlan20'
        option device 'br-lan.20'
        option proto 'static'
        option ipaddr '192.168.20.1'
        option netmask '255.255.255.0'

config interface 'vlan30'
        option device 'br-lan.30'
        option proto 'static'
        option ipaddr '192.168.30.1'
        option netmask '255.255.255.0'
        
config interface 'vlan40'
        option device 'br-lan.40'
        option proto 'static'
        option ipaddr '192.168.40.1'
        option netmask '255.255.255.0'
        
config interface 'wan'
        option device 'wan'
        option proto 'dhcp'

config interface 'wan6'
        option device 'wan'
        option proto 'dhcpv6'

/etc/config/wireless

config wifi-iface 'wifinet0'
        option device 'radio0'
        option network 'lan'
        option mode 'ap'
        option ssid 'AP24G'
        option encryption 'psk2'
        option key 'Vlan1Pass'
        option wmm '1'
        option short_preamble '1'
        option disassoc_low_ack '0'
        option max_inactivity '120'
        option isolate '1'
        option disabled '0'
        option ifname 'wlan0'
        option multicast_to_unicast_all '1'

config wifi-iface 'wifinet1'
        option device 'radio1'
        option network 'lan'
        option mode 'ap'
        option ssid 'AP58G'
        option encryption 'psk2'
        option key 'Vlan1Pass'
        option wmm '1'
        option short_preamble '1'
        option disassoc_low_ack '0'
        option max_inactivity '120'
        option isolate '1'
        option disabled '0'
        option ifname 'wlan1'
        option multicast_to_unicast_all '1'


config wifi-vlan
        option name 'vl10'
        option network 'vlan10'
        option vid '10'

config wifi-station
        option key 'Vlan10Pass'
        option vid '10'

config wifi-vlan
        option name 'vl20'
        option network 'vlan20'
        option vid '20'

config wifi-station
        option key 'Vlan20Pass'
        option vid '20'

config wifi-vlan
        option name 'vl30'
        option network 'vlan30'
        option vid '30'

config wifi-station
        option key 'Vlan30Pass'
        option vid '30'

config wifi-vlan
        option name 'vl40'
        option network 'vlan40'
        option vid '40'

config wifi-station
        option key 'Vlan40Pass'
        option vid '40'