Download Instructions

Make sure you download the correct version for your screen size!

Use Case	File to Download
New device (first time flashing)	`firmware-v1.4.3-OLED_0.96inch.bin` or `firmware-v1.4.3-OLED_1.3inch.bin`
Existing device (OTA update via web interface)	`OTA_ONLY_firmware-v1.4.3-OLED_0.96inch.bin` or `OTA_ONLY_firmware-v1.4.3-OLED_1.3inch.bin`

v1.5.0 Release Notes

Automatic Timezone & DST - Replaced manual GMT offset + DST checkbox with a region-based timezone selector (~50 regions). DST transitions happen automatically using POSIX timezone strings. Old settings are auto-migrated.
Large Text Display Modes - Two new row modes: Large 2-Row and Large 3-Row with double-size text in single-column layout for better readability at a distance.
SPI Display Interface - Compile-time DISPLAY_INTERFACE switch to use SPI instead of I2C. Configurable SPI pins in user_config.h.
LED Gesture Control - Redesigned TTP223 touch gestures: quick tap (< 500ms) toggles mode/cycles clocks, medium press (500ms-1s) toggles LED on/off, long hold (> 1s) ramps LED brightness with gamma correction.
Show IP at Boot - New setting to show/hide the IP address on OLED at startup (configurable via web interface).
QR Code WiFi Setup - Optional compile-time feature (QR_SETUP_ENABLED) that shows a scannable QR code on the OLED during WiFi AP setup.

Fixed clock drifting ~3 hours after days of uptime - WiFi reconnection now restarts the SNTP client and reapplies timezone. Added periodic hourly NTP re-sync as safety net.
Fixed animated clock digit revert - Animation trigger changed from :55 to :56 seconds in Mario, Space Invaders, and Pac-Man clocks, preventing digits from briefly showing the old value.
Fixed Pong ball diagonal speed - Balls moving diagonally no longer exceed maximum speed (clamped by magnitude instead of per-axis).
Fixed timezone dropdown showing wrong region - Multiple regions sharing the same timezone rules (Central European, Scandinavian, Central Balkan) now correctly display the user's actual selection.
Fixed UDP oversized packet handling - Packet size is validated before reading, preventing processing of truncated data.
Fixed Pac-Man eaten pellets initialization - Prevents visual glitches from uninitialized memory on first display.
Fixed scheduled dimming edge case - Same start/end hour now correctly treated as "no dim period".
Fixed progress bar off-screen drawing - Bars outside display bounds are now skipped.
Fixed SH1106 initialization - Now properly checks return value of display.begin().
Fixed WiFi disconnect not marking PC offline - Display correctly shows offline status when WiFi drops.
Fixed buffer overflow in safeCopyString - Uses strncpy with explicit null termination.

Smoother animations - Auto-boost refresh rate increased from 40 Hz to 60 Hz.
Faster touch response - Button debounce reduced from 200ms to 50ms.
More reliable NTP sync - Retry attempts increased from 10 to 30; SNTP client restarted on failure.
Metrics API uses ArduinoJson - Proper JSON escaping for metric names/labels.
Code cleanup - ~50 lines of redundant forward declarations removed.

Timezone setting format - Old GMT offset dropdown replaced by region selector. Existing configs auto-migrate.
Touch gesture timing - Short press threshold reduced from 1000ms to 500ms. Medium press (500ms-1s) now toggles LED.