added README

README.md

@@ -0,0 +1,28 @@
+# speed-logger
+
+Runs periodic internet speed tests using the Cloudflare speed test API and visualizes the results in Grafana. Tests run every 15 minutes and record download speed, upload speed, latency, and jitter. Results are stored in a SQLite database and displayed on a pre-configured Grafana dashboard.
+
+![Dashboard](res/dashboard.png)
+
+## Requirements
+
+- Docker and Docker Compose
+
+## Deployment
+
+Create a `.env` file in the project root with the following variables:
+
+```
+GRAFANA_PORT=3000
+GRAFANA_ADMIN_USER=admin
+GRAFANA_ADMIN_PASSWORD=changeme
+```
+
+Start the containers:
+
+```
+docker compose up -d
+```
+
+Grafana will be available at `http://localhost:3000`. The dashboard is provisioned automatically on first start.
+

grafana/provisioning/dashboards/speed_tests.json

@@ -31,7 +31,7 @@
       },
       "id": 100,
       "panels": [],
-      "title": "📊 Summary",
+      "title": "Summary",
       "type": "row"
     },
     {
@@ -482,7 +482,7 @@
       },
       "id": 101,
       "panels": [],
-      "title": "📈 Speed Over Time",
+      "title": "Speed Over Time",
       "type": "row"
     },
     {
@@ -860,7 +860,7 @@
       },
       "id": 102,
       "panels": [],
-      "title": "🕐 Time-of-Day & Weekday Patterns",
+      "title": "Time-of-Day & Weekday Patterns",
       "type": "row"
     },
     {
@@ -1261,7 +1261,7 @@
       },
       "id": 103,
       "panels": [],
-      "title": "🔴 Uptime & Failures",
+      "title": "Uptime & Failures",
       "type": "row"
     },
     {
@@ -1400,7 +1400,7 @@
       },
       "id": 104,
       "panels": [],
-      "title": "🗃️ Raw Data",
+      "title": "Raw Data",
       "type": "row"
     },
     {