From here. I run the below script on my desktop.
bill@bill$:~/Downloads/Computers/PDP-11/BlinkenBone ./pdp1170_blinky.sh
Starting panel simulation and portmapper …
May 16, 2023 9:11:14 PM blinkenbone.blinkenlight_api.RpcServer
INFO: RpcServer logging started
Wait 30 seconds for java/portmap to come up …
*** blinkenlightapitst v1.09 – client for BeagleBone Blinkenlight API panel interface ***
Build Dec 26 2018 14:09:16
Copyright (C) 2012-2016 Joerg Hoppe.
Contact: j_hoppe@t-online.de
Web: www.retrocmp.com/projects/blinkenbone
Pinging Blinkenlight API server on host “localhost” …
Blinkenlight API server on host “localhost” is alive.
Starting SimH …
PDP-11 simulator V4.0-0 Current REALCONS build Dec 26 2018 git commit id: $Format:
Disabling XQ
Searching realcons controller “11/70” …
Connecting to host localhost …
So after you run the above script…it opens a web page and runs simh showing the executing Assembler instructions on the terminal. Finally displaying this image with blinking lights and switches that toggle.
Open the image in another tab, for a bigger image.