Skip to the card

Card 842 of 9832026-09-12 issue

Observed arrival · 2026-09-12

Ternmaps: Surf Conditions in Wood and LEDs

ternmaps.surf Observed source
Editorial interest 84/100 Selection signal · not a rating of the site

Handmade wooden wall maps use colored LEDs to display wave size and quality at selected surf breaks.

Landing page captured for the 2026-09-12 issue.

Field notes

The map uses two visual channels at each break: LED count communicates wave size, while color communicates quality, with the page defining a range from red “Bad” to purple “Perfect.” Setup happens through a phone-based Wi-Fi connection, after which the device is described as operating without an app or subscription. The listed launch inventory is unusually concrete: ten East Coast maps, ten California maps, and ten North America maps, all currently shown as out of stock.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
$PaidCommerce or pricing visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use
HumanPersonal, local, civic, or handmade
ƒJavaScriptBrowser-side code central

One card from the complete issue

Radio Range Becomes Geography

352,465 arrived 1,000 judged 983 catalogued Enter the complete issue
ternmaps.surf

Landing page observed 2026-09-12. The live site may have changed.