I share this beautiful CSS for a slightly calmer light.
This is the module:
https://github.com/justjim1220/MMM-HolidayLights.

Show what yours looks like or your adjustments.

/* to modify, follow the commented directions
 * please report any problems or issues, I'm always glad to help! */

.MMM-HolidayLights {
    width: 100%;
    align-self: center;
}
.strand {
	text-align: center;
	white-space: nowrap;
	overflow: hidden;
	position: absolute;
	z-index: 1;
	margin: -15px 0 0 0;
	padding: 0;
	pointer-events: none;
}

.strand li {
	position: relative;
	-webkit-animation-fill-mode: both;
	animation-fill-mode: both;
	-webkit-animation-iteration-count: infinite;
	animation-iteration-count: infinite;
	list-style: none;
	margin: 0;
	padding: 0;
	display: block;
	width: 36px;
	height: 75px;
	border-radius: 50%;
	margin: 20px;
	display: inline-block;
	-webkit-animation-name: flash-1;
	animation-name: flash-1;
	-webkit-animation-duration: 1.7s;
	animation-duration: 1.7s;
}



.strand li:nth-child(2n+1) {
	-webkit-animation-name: flash-2;
	animation-name: flash-2;
	-webkit-animation-duration: 2s;
	animation-duration: 2s;
}

.strand li:nth-child(3n+2){
	-webkit-animation-name: flash-3;
	animation-name: flash-3;
	-webkit-animation-duration: 1.4s;
	animation-duration: 1.4s;
}

.strand li:nth-child(4n+3) {
	-webkit-animation-name: flash-4;
	animation-name: flash-4;
	-webkit-animation-duration: 1.1s;
	animation-duration: 1.1s;
}

.strand li:before {
	content: "";
	position: absolute;
	background: #090;
	width: 32px;
	height: 9.33333px;
	border-radius: 3px;
	top: -6.66667px;
	left: 1px;
}

.strand li:after {
	content: "";
	top: -20px;
	left: 28px;
	position: absolute;
	width: 52px;
	height: 18.66667px;
	border-bottom: solid #090 2px;
	border-radius: 50%;
}

.strand li:last-child:after {
	content: "";
}

/* the following sections are for the flashing animations
* each light has 2 sections with correspong frames, IE: @-webkit-keyframes flash-1 & @keyframes flash-1
* both sections must match in color
* the 0%, 100% section is the light ON, the 50% sction is the light OFF
* the box-shadow lines MUST br in rgba format to get the 50% of the color
* to find the rgb of a hex color code, go here: https://www.colorhexa.com/
* you may find it easier to use rgb format for the background (0%, 100%) color as well
* the rgb format must have 3 numbers IE: rgba(255, 66, 0)
* to get the 50% effect add an a to the rgb and 0.5 at the end of the rgb
* the rgba format must have 4 numbers IE: rgba(255, 66, 0, 0.5)
* this template is set for 6 different colored lights
* to have less, delete or comment out the last one(s)
* IE: to have only 3 lights, remove the fourth, fifth, & sixth sections */

/* color of 1st light in the string */
@-webkit-keyframes flash-1 {
	0%, 100% {
		background: #daa520; /* change color here */
		box-shadow: 0px 4.66667px 48px 3px #daa520; /* change color here */
	}
	50% {
		background: rgba(255, 215, 0); /* change color here */
		box-shadow: 0px 4.66667px 48px 3px rgba(255, 215, 0); /* change color here */
	}
}

@keyframes flash-1 {
	0%, 100% {
        background: #daa520; /* change color here */
        box-shadow: 0px 4.66667px 48px 3px #daa5200; /* change color here */
    }
    50% {
        background: rgba(255, 215, 0); /* change color here */
        box-shadow: 0px 4.66667px 48px 3px rgba(255, 215, 0); /* change color here */
    }
}

/* color of 2nd light in the string */
@-webkit-keyframes flash-2 {
	0%,	100% {
		background: #daa520; /* change color here */
		box-shadow: 0px 4.66667px 48px 3px #daa520; /* change color here */
	}
	50% {
		background: rgba(255, 215, 0); /* change color here */
		box-shadow: 0px 4.66667px 48px 3px rgba(255, 215, 0)); /* change color here */
	}
}

@keyframes flash-2 {
	0%, 100% {
        background: #daa520; /* change color here */
        box-shadow: 0px 4.66667px 48px 3px #daa520; /* change color here */
    }
    50% {
        background: rgba(255, 215, 0); /* change color here */
        box-shadow: 0px 4.66667px 48px 3px rgba(255, 215, 0); /* change color here */
    }
}

/* color of 3rd light in the string */
@-webkit-keyframes flash-3 {
	0%,	100% {
		background: #daa520; /* change color here */
		box-shadow: 0px 4.66667px 48px 3px #daa520; /* change color here */
	}
	50% {
		background: rgba(255, 215, 0); /* change color here */
		box-shadow: 0px 4.66667px 48px 3px rgba(255, 215, 0); /* change color here */
    }
}

@keyframes flash-3 {
	0%, 100% {
        background: #daa520; /* change color here */
        box-shadow: 0px 4.66667px 48px 3px #daa520; /* change color here */
    }
    50% {
        background: rgba(255, 215, 0); /* change color here */
        box-shadow: 0px 4.66667px 48px 3px rgba(255, 215, 0); /* change color here */
    }
}

/* color of 4th light in the string */
@-webkit-keyframes flash-4 {
    0%,	100%{
        background: #daa520; /* change color here */
        box-shadow: 0px 4.6667px 48px 3px #daa520; /* change color here */
    }
    50%{
        background: rgba(255, 215, 0); /* change color here */
        box-shadow: 0px 4.66667px 48px 3px (66, 0, 0, 0.5); /* change color here */
    }
}
    
@keyframes flash-4 {
    0%,	100% {
        background: #daa520; /* change color here */
        box-shadow: 0px 4.66667px 48px 3px #daa520; /* change color here */
    }
    50% {
        background: rgba(255, 215, 0); /* change color here */
        box-shadow: 0px 4.66667px 48px 3px rgba(255, 215, 0); /* change color here */
    }
}

/* color of 5th light in the string */
@-webkit-keyframes flash-5 {
    0%,	100%{
        background: #daa520; /* change color here */
        box-shadow: 0px 4.6667px 48px 3px #daa520;
    }
    50%{
        background: rgba(255, 215, 0); /* change color here */
        box-shadow: 0px 4.66667px 48px 3px rgba(255, 215, 0); /* change color here */
    }
}
    
@keyframes flash-5 {
    0%,	100% {
        background: #daa520; /* change color here */
        box-shadow: 0px 4.66667px 48px 3px #daa520; /* change color here */
    }
    50% {
        background: rgba(255, 215, 0); /* change color here */
        box-shadow: 0px 4.66667px 48px 3px rgba(255, 215, 0); /* change color here */
    }
}

/* color of 6th light in the string */
@-webkit-keyframes flash-6 {
    0%,	100%{
        background: #daa520; /* change color here */
        box-shadow: 0px 4.6667px 48px 3px #daa520; /* change color here */
    }
    50%{
        background: rgba(255, 215, 0); /* change color here */
        box-shadow: 0px 4.66667px 48px 3px rgba(255, 215, 0); /* change color here */
    }
}
    
@keyframes flash-6 {
    0%,	100% {
        background: #daa520; /* change color here */
        box-shadow: 0px 4.66667px 48px 3px #daa520; /* change color here */
    }
    50% {
        background: rgba(255, 215, 0); /* change color here */
        box-shadow: 0px 4.66667px 48px 3px rgba(255, 215, 0); /* change color here */
    }
}

@Sam-0

yes it works very well thank you for your patience with me I hope others can now set it up more easily
thanks again for the effort

ok is this good now? :) let me know the result tomorrow…

@evroom said in cron job hdmi on and off:

@Sam-0

You only had to change the 1 into a 0.
Not to move the lines around, especially not the ones with export.

#!/bin/bash
export WAYLAND_DISPLAY=wayland-0
export XDG_RUNTIME_DIR=/run/user/1000
wir-randr --output HDMI-A-1 --on

But you are slowly getting there :-)
Wax on, wax off
Screen on, screen off.

Man who catch fly with chopstick, accomplish anything😆

@
ok i will adjust it and see if it works

@sdetweil
thank you i made the adjustment

@evroom said in cron job hdmi on and off:

export WAYLAND_DISPLAY=wayland-0

this way?

I’m not a developer but maybe a pollen module would be nice or if it already exists I’d like to hear about it https://developers.google.com/maps/documentation/pollen/overview

@evroom

should it be modified in this way?

output HDMI-A-1 --on
Into
output HDMI-A-0 --on

@Sam-0 this is the result

checked the cron see below

ok i checked some more and did some tests

when I execute the following I get the error message that I also see in the log

/usr/bin/wlr-randr --output H DMI-A-1 --off
failed to connect to display

also running the sh files via putty gives the error
it seems that the command:
/usr/bin/wlr-randr --output H DMI-A-1 --off
the error message gives the question is this command incorrect or is there an underlying problem?