fix zero handling

2026-06-18 18:39:26 +01:00
parent 242820f9d1
commit 7254719794
3 changed files with 90 additions and 0 deletions
@@ -46,6 +46,20 @@ Compose builds the internal database URL from `MYSQL_USER`, `MYSQL_PASSWORD`,
 and `MYSQL_DATABASE`. Set `DATABASE_URL` only if you want to point the app at a
 different database.

+## Maintenance
+
+Remove bad readings where temperature, humidity, and battery are all zero:
+
+```sh
+scripts/remove_zero_readings.sh
+```
+
+Preview the count without deleting:
+
+```sh
+scripts/remove_zero_readings.sh --dry-run
+```
+
 ## Reports

 Open `/reports` in the web app to generate a date-range summary. Use the