How to set up wifi on Arch Linux?

Question

linux

Actually there is a laptop Lenovo B590 with WiFi BCM43142. The laptop runs Arch Linux.
Attempts to file WiFi on archwiki did not bring any result. Doesn't show the interface with ip link water.
lspci:

03:00.0 Network controller: Broadcom Limited BCM43142 802.11b/g/n (rev 01)
  Subsystem: Lenovo BCM43142 802.11b/g/n

When executing modprobe wl gives:

modprobe: FATAL: Module wl not found in directory /lib/modules/4.14.5-1-ARCH

Actually where else can you dig? What can be installed?

Answer 1

The arch wiki has a separate article for broadcom https://wiki.archlinux.org/index.php/broadcom_wireless, which also talks about wl. If after this article does not work, then I do not know