rotate display using applescript, tested on Mac os High Sierra(10.13)

route-screen.applescript

--
--	Created by: v1c77
--	Created on: 2018/7/21
--
--             DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
--                       Version 2, December 2004

--      Copyright (C) 2020 v1c77

--      Everyone is permitted to copy and distribute verbatim or modified
--      copies of this license document, and changing it is allowed as long
--      as the name is changed.

--               DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
--      TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

--      0. You just DO WHAT THE FUCK YOU WANT TO.

use AppleScript version "2.7" -- Yosemite (10.10) or later
use scripting additions


tell application "System Preferences"
	quit
	delay 0.5
	launch
	activate
	set current pane to pane "com.apple.preference.displays"
	--reveal pane id "com.apple.preference.displays"
end tell

tell application "System Events"
	tell application process "System Preferences"
		tell window "DELL U2415" -- change the window name for different display
			delay 1
			click radio button "Display" of tab group 1
			set theGroup to tab group 1
			tell pop up button "Rotation:" of theGroup
				set theStat to value of it
				click
				tell menu 1
					if theStat = "Standard" then
						click menu item 4 -- 270 dig
					else
						click menu item 1 -- standard
					end if
				end tell
			end tell
		end tell
	end tell
end tell
tell application "System Preferences"
	quit
end tell

Installed macOS Ventura recently. Glad to see that there is updated script already. Thank you @marcelliino!

I wanted to automate external monitor selection, but was not able to click on buttons representing displays. Maybe it's a bug, or my AppleScript skills.
For now added a 5sec delay, to have time to select the proper monitor.
Here is the mix of mine and @marcelliino scripts:

tell application "System Events"
	
	key code 107 using {option down}
	
	delay 1
	tell window "Displays" of application process "System Settings"
		(* 
			The script below works only when the external monitor is selected.
			I was not able to select it programmatically:
				Displays are represented as buttons in `scroll area 1`,
				but nothing happens when they receive `click` command
			So, ask user for help with this and click on the proper monitor
		*)
		
		-- Give user 5 sec to click on the monitor to rotate
		set autoClose to 5
		set continueButton to "Continue (in " & autoClose & " sec)"
		set stopButton to "Stop"
		display dialog "Select monitor to rotate" giving up after autoClose buttons {stopButton, continueButton} default button continueButton cancel button stopButton
		
		-- This only works when the external monitor is selected (by default or by user)
		tell pop up button 0 of group 4 of scroll area 2 of group 0 of group 2 of splitter group 0 of group 0
			set theRotation to value of it
			click
			tell menu 1
				if theRotation = "Standard" then
					click menu item "90°"
				else
					click menu item "Standard"
				end if
			end tell
		end tell
		
		-- Confirm new display setting
		delay 1
		if exists of sheet 1 then
			click button 1 of group 0 of sheet 1
		end if
		
		-- Arrange monitors
		delay 0.1
		if theRotation = "Standard" then
			-- vertical arrangement
			do shell script "/opt/homebrew/bin/displayplacer \"id:8B54EED0-06DA-6D6D-0857-D6964E3302DB res:1692x3008 scaling:on origin:(0,-3008) degree:90\""
		else
			-- horizontal arrangement
			do shell script "/opt/homebrew/bin/displayplacer \"id:8B54EED0-06DA-6D6D-0857-D6964E3302DB res:2560x1440 scaling:on origin:(-427,-1440) degree:0\""
		end if
	end tell
end tell

delay 0.5

tell application "System Settings"
	quit
end tell

On my Mac air M2 (Ventura 13.3.1a)

error "System Events got an error: Can’t get application process "System Settings"." number -1728 from application process "System Settings"

Hi @alissoneloi, did you find and alternative to bypass the error message? I've found that if I activate it twice, it opens without any issues

tried on Sonoma with no success

I just upgraded to Ventura and am also getting the error System events got an error: Can't get window "Displays" of application process "System Settings"

any update for Sonoma ? thx