Show All Your Calendars on a Wall Display (DakBoard, Skylight & MagicMirror)

A calendar wall display — a DakBoard, a Skylight, a DIY MagicMirror, or any of the smart family-calendar frames — is happiest pointed at one feed. But a real household has many: each parent's work calendar, the kids' school .ics, a club's game schedule, a holidays feed. Adding them one by one runs into two walls fast: the display's calendar limit, and the fiddle of managing a long list of URLs. Merging them first sidesteps both.

The trick: one feed, not ten

iCal Merge combines all your sources into a single link. To the display, that's one calendar — but behind it sits everything you added. Two reasons that matters on a wall display specifically:

• It beats the calendar limit. DakBoard's free plan, for example, lets you add only 2 calendars (Essential raises it to 5; Plus is unlimited). A single merged feed counts as one of those slots no matter how many calendars you've folded into it.
• One URL is far less to manage. Add or remove a source in iCal Merge and the display just keeps showing the same link — no re-pasting URLs or editing config on the device.

The honest trade-off: one feed, one colour

Most displays colour-code events per calendar. Because a merged feed is a single calendar, every event on it shares one colour rather than getting a colour per source. iCal Merge makes up for this by prefixing each event with its source name — so a school event reads “School: Parent–teacher evening” and a game reads “U10 Eagles: vs Hawks,” and you can still tell at a glance where each one came from.

If per-source colours matter more to you than the calendar limit, you can also split into a few merged feeds (say, one per family member) and add those as separate calendars — each gets its own colour, and you're still adding far fewer URLs than the raw count of sources.

Step 1: Merge your calendars into one link

Grab the iCal/ICS link from each calendar — in Google Calendar it's Settings → Integrate calendar → Secret address in iCal format; school portals, sports apps and league sites usually have a “Subscribe” or “Export to calendar” link. Add each one as a source.

Copy the merged feed URL — that's the only link you'll give the display. One note that trips people up: most displays require the link to be public (no login). Your merged feed is reachable by anyone who has the link, which is exactly what a display needs, so treat the URL as a secret and you're set.

Step 2: Add the feed to your display

The merged feed is a standard iCal/ICS URL, so it works anywhere that accepts a calendar link. Here's where that field lives on the popular displays.

DakBoard

In the Calendar block, open Connected Calendar → Add Calendar URL, paste the merged feed and save. It refreshes on its own from then on. Because it's one calendar, it uses one of your plan's calendar slots — handy if you're on the free 2-calendar plan.

Skylight Calendar

In the Skylight app: My Skylight → Synced Calendars → Sync new calendar → Calendar URL, then paste the merged feed. Skylight treats a URL feed as one-way (read-only), which is exactly right for a combined view — you read it on the wall and edit events back in their original calendars.

MagicMirror² (DIY / Raspberry Pi)

The built-in calendar module (and the popular MMM-CalendarExt2/3) take an array of feed URLs in config.js. Instead of hand-listing every calendar there and re-editing the file whenever one changes, point it at the single merged feed — then add and remove sources from iCal Merge without touching the Pi again.

Cozi, FamilyWall, Hearth, Cozyla & others

Anything with an “add calendar by URL,” “subscribe,” or “import from URL” option works the same way — paste the merged feed once. The pattern is always: merge in iCal Merge, give the display the one resulting link.