From 96a02ccefa7fe5a8d88b5e1222641bb68eef3fc2 Mon Sep 17 00:00:00 2001
From: Trip5 <i@donotbend.net>
Date: Mon, 26 Feb 2024 04:48:51 +0900
Subject: [PATCH] Update weather-display.md

I had some real trouble today when some sensors went offline... here's how to error-check in Home Assistant!
---
 wiki/weather-display.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/wiki/weather-display.md b/wiki/weather-display.md
index 90dc0e07..ee43d50b 100644
--- a/wiki/weather-display.md
+++ b/wiki/weather-display.md
@@ -111,3 +111,15 @@ action:
           g: 192
           b: 192
 ```
+
+### How to add error-checking to sensors which may go offline (and cause the script to abort)
+
+```
+          text: >
+            {% set state = states('sensor.openweathermap_temperature') %} {% if
+            is_number(state) %}
+              {{ state|round(1) }}°
+            {% else %}
+              {{ "error" }}
+            {% endif %}
+```