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27 lines
925 B
Markdown
27 lines
925 B
Markdown
# Electricity Price Ticker – Version Information
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## Current firmware
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- **Version:** 6.0.0
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- **Release date:** 2026-01-27
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- **Target MCU:** Seeed XIAO ESP32‑C3
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- **Display:** 20x4 I²C LCD (PCF8574, default address `0x27`)
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- **API endpoint:** `https://api.energy-charts.info/price?bzn=SI`
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- **Resolution:** 15‑minute intervals, hourly averages for overview
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## Highlights of v6.0.0
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- Single **daily fetch** (on boot / after midnight) instead of hourly.
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- **NVS storage** of daily data for resilience to power outages.
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- Robust midnight rollover and retry logic:
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- First immediate fetch.
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- Up to 5 × 10‑minute retries.
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- Then top‑of‑hour retries until successful.
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- Prevents yesterday’s prices from ever being shown as today’s.
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- Secondary info menu extended with **NVS status** and clear version label.
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For full details, see:
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- [CHANGELOG.md](./CHANGELOG.md)
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- [README.md](./README.md)
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