Standalone-electricity-price-ticker/VERSION.md

Electricity Price Ticker – Version Information

Current firmware

• Version: 6.0.0
• Release date: 2026-01-27
• Target MCU: Seeed XIAO ESP32‑C3
• Display: 20x4 I²C LCD (PCF8574, default address 0x27)
• API endpoint: https://api.energy-charts.info/price?bzn=SI
• Resolution: 15‑minute intervals, hourly averages for overview

Highlights of v6.0.0

• Single daily fetch (on boot / after midnight) instead of hourly.
• NVS storage of daily data for resilience to power outages.
• Robust midnight rollover and retry logic:
  • First immediate fetch.
  • Up to 5 × 10‑minute retries.
  • Then top‑of‑hour retries until successful.
• Prevents yesterday’s prices from ever being shown as today’s.
• Secondary info menu extended with NVS status and clear version label.

For full details, see:

• CHANGELOG.md
• README.md