Backup-Mirrors/Standalone-electricity-price-ticker
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Update README for version 6.2.4 release

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Updated version number to 6.2.4 and added highlights for the new version, including a critical bug fix related to display refresh at exact hour boundaries.
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Amir
2026-04-01 21:46:11 +02:00
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@@ -11,12 +11,16 @@ This project is an Arduino‑IDE‑friendly firmware for the **Seeed XIAO ESP32
- Uses a white LED and an optional presence sensor to give quick visual feedback.
- Stores daily price data in **NVS** to survive reboots and reduce API calls.
The latest sketch implements **Version 6.2.3**.
The latest sketch implements **Version 6.2.4**.
---
## Version Highlights
### v6.2.4 - Exact-boundary display refresh bug (critical fix of v6.2.3 update)
- Problem: At the exact top of the hour (e.g., 20:00:00), the display automatically refreshed but showed the PREVIOUS hour's data (19:00). This happened because the "next-boundary" rounding logic in findCurrentPriceIndex() incorrectly excluded the current interval if the time was exactly on the boundary.
- Fix: Simplified findCurrentPriceIndex() to use a robust "last entry <= now" comparison. This ensures the display transitions to the new hour instantaneously at XX:00:00.
### v6.2.3 - State-based display refresh logic (critical fix of v6.2.2 update)
- Problem: Screen would occasionally fail to update if the ESP32 was busy (fetching data or reconnecting WiFi) during the exact 00/15/30/45 minute mark.
- Fix: Switched from "Event-Based" (refresh only AT minute X) to "State-Based" (refresh IF current time != last refresh time). This ensures the screen updates immediately even if the device was busy during the transition.