1.5.0-rc.3

OpenShock Firmware 1.5.0-rc.3

Fixed a critical bug where the firmware could never connect to LCG, and addressed code correctness issues (variable initialization and type casting) along with compiler warning cleanups.

Flashing the firmware

Download OpenShock_[board]_[version].bin and flash it to your microcontroller:

esptool write_flash 0x0 OpenShock_[board]_[version].bin

1.5.0-rc.2

OpenShock Firmware 1.5.0-rc.2

This release candidate focuses on E-Stop reliability, rate limiting behavior, and general internal cleanup and correctness improvements.

Highlights

• Improved E-Stop handling

  • More reliable state transitions.
  • Removed event spamming by introducing change detection.
  • Added a short re-arm grace period after clearing to prevent immediate re-triggering due to switch bounce or noise.
  • Cleaner handling of external E-Stop triggers.

• Rate limiter improvements

  • More efficient internal tracking of recent requests.
  • Corrected cleanup and timing behavior under sustained load.
  • More predictable blocking behavior when limits are exceeded.

Stability & Internal Cleanup

• Safer handling of integer formatting and digit counting (avoids edge-case overflows).
• Reduced unnecessary string copying by tightening ownership where appropriate.
• Command handling and serial logic cleaned up for clearer control flow.
• General warning cleanups, minor API refinements, and consistency improvements across the codebase.

Build & Tooling

• Minor CI and dependency updates.
• Expanded compiler warnings where possible to catch issues earlier during development.

Flashing the firmware

Download OpenShock_[board]_[version].bin and flash it to your microcontroller:

esptool write_flash 0x0 OpenShock_[board]_[version].bin

1.5.0-rc.1

OpenShock Firmware 1.5.0-rc.1

This release candidate focuses on radio reliability, firmware behavior improvements, and a refreshed frontend.

Highlights (User-Visible Firmware Changes)

• Major RF/RMT transmitter rework for improved timing accuracy and more reliable shocker communication.
• Updated AssignLCG integration using the new backend endpoint (removes the old LCG override setting).
• Hub now reports its Wi-Fi signal strength (RSSI), this will be used to show connection health in UI's.
• Serial output now uses CRLF line endings for improved compatibility with Windows terminals.
• Added T330 shocker protocol support.

Radio & Timing

• Reworked RF pipeline with more consistent timing and fewer internal allocations.
• Fixed timing issues for CaiXianlin and improved PET998DR handling.
• Additional guardrails added to the RF subsystem to prevent stalls/crash loops.

Firmware Behavior / System

• Introduced internal execution time limits to prevent firmware from getting stuck in long-running operations.
• Replaced all ESP.restart() usage with ESP-IDF native esp_restart() calls
• Improved OTA, Wi-Fi initialization, and crash-loop resilience.

HTTP & Gateway

• Clearer/more consistent HTTP error and status behavior.
• Improved 401 handling and token recovery.
• AssignLCG now reports firmware version and uses the updated endpoint.

Frontend & UX

• Migrated to Svelte 5 + shadcn.
• Updated to Tailwind CSS v4 and reduced frontend bundle size.
• UI palette synced with website.

Misc / Internal Changes

• PlatformIO, espressif32, FlatBuffers, Node, pnpm, and other dependency updates.
• Build reproducibility improvements and CI cleanup.
• Various memory fixes, warning cleanups, and improved parsing logic.

---

Breaking Changes

• LCG override removed (new AssignLCG endpoint required).
• Serial output now uses CRLF (update scripts if needed).

Notes

• RF timing changes are substantial; please report shocker-specific regressions.
• Scripts relying on legacy AssignLCG behavior may need updates.

Flashing the firmware

Download OpenShock_[board]_[version].bin and flash it to your microcontroller:

esptool write_flash 0x0 OpenShock_[board]_[version].bin

1.4.0

OpenShock Firmware 1.4.0

This release is packed with bugfixes, optimizations, code cleanup, prepwork for ESP-IDF, and some features!

Highlights

• Add support for configuring hostname of ESP via Serial.
• Add support for configuring Emergency Stop via Captive Portal and Serial.
• Report available GPIO pins to Captive Portal Frontend.
• Massively refactor serial command handler.

Optimizations

• Bump platform-espressif32 to version 6.9.
• Start using C++17 features including std::string_view.
• Clean up platformio.ini file.
• Lots of miscellanious code cleanup.
• Implement custom zero-copy type conversion methods with better error checking.
• Reduce log spam by the arduino library.
• Improve error handling of gpio pin selection.
• Attempt to make more sense out of the 998DR protocol serializer.

Flashing the firmware

Download OpenShock_[board]_[version].bin and flash it to your microcontroller:

esptool write_flash 0x0 OpenShock_[board]_[version].bin

1.4.0-rc.2

OpenShock Firmware 1.4.0-rc.2

Fixed EStop debouncing logic.

Flashing the firmware

Download OpenShock_[board]_[version].bin and flash it to your microcontroller:

esptool write_flash 0x0 OpenShock_[board]_[version].bin

1.4.0-rc.1

OpenShock Firmware 1.4.0-rc.1

This release is packed with bugfixes, optimizations, code cleanup, prepwork for ESP-IDF, and some features!

Highlights

• Add support for configuring hostname of ESP via Serial.
• Add support for configuring Emergency Stop via Captive Portal and Serial.
• Report available GPIO pins to Captive Portal Frontend.
• Massively refactor serial command handler.

Optimizations

• Bump platform-espressif32 to version 6.9.
• Start using C++17 features including std::string_view.
• Clean up platformio.ini file.
• Lots of miscellanious code cleanup.
• Implement custom zero-copy type conversion methods with better error checking.
• Reduce log spam by the arduino library.
• Improve error handling of gpio pin selection.
• Attempt to make more sense out of the 998DR protocol serializer.

Flashing the firmware

Download OpenShock_[board]_[version].bin and flash it to your microcontroller:

esptool write_flash 0x0 OpenShock_[board]_[version].bin

1.3.0

OpenShock Firmware 1.3.0

This release adds support for more boards, has more bugfixes, better error handling, and optimization/cleanup.

Highlight

• Added support for DFRobot Firebeetle, Wemos S3 Mini and WaveShare S3 Zero boards.

Minor Updates

• Re-Add PET998DR Quiet Postamble.
• Fix CaiXianlin protocol sending non-zero when doing a beep command.
• Moved schema files to seperate repository.
• Improve error handling and logging.
• Dependency updates.
• Code cleanup, optimization and refactoring.

Flashing the firmware

Download OpenShock_[board]_[version].bin and flash it to your microcontroller:

esptool write_flash 0x0 OpenShock_[board]_[version].bin

1.3.0-rc.1

OpenShock Firmware 1.3.0-rc.1

This is the first release candidate for version 1.3.0.

Highlight

• Added support for DFRobot Firebeetle, Wemos S3 Mini and WaveShare S3 Zero boards.

Minor Updates

• Re-Add PET998DR Quiet Postamble.
• Fix CaiXianlin protocol sending non-zero when doing a beep command.
• Moved schema files to seperate repository.
• Improve error handling and logging.
• Dependency updates.
• Code cleanup, optimization and refactoring.

Flashing the firmware

Download OpenShock_[board]_[version].bin and flash it to your microcontroller:

esptool write_flash 0x0 OpenShock_[board]_[version].bin

1.2.0

OpenShock Firmware 1.2.0

This release adds a new shocker protocol, more bugfixes, configurability, and performance improvements.

Highlight

• Added support for 998DR Petrainer RF protocol.

Major Updates

• Add command to get/set api domain.
• Add command to get/set/clear override for Live Control Gateway (LCG) domain.

Minor Updates

• Change transmission end command to last for 300 ms.
• Increase WDT timeout during OTA updates to prevent watchdog resets.
• Remove non thread-safe RF sequence caching.
• Update flatbuffers to 23.5.26.
• Start utilizing StringView more to reduce memory and CPU usage.
• Small code cleanup and refactoring.

Flashing the firmware

Download OpenShock_[board]_[version].bin and flash it to your microcontroller:

esptool write_flash 0x0 OpenShock_[board]_[version].bin

1.2.0-rc.1

OpenShock Firmware 1.2.0-rc.1

This is the first release candidate for version 1.2.0.

Highlight

• Added support for 998DR Petrainer RF protocol.

Major Updates

• Add command to get/set api domain.
• Add command to get/set/clear override for Live Control Gateway (LCG) domain.

Minor Updates

• Change transmission end command to last for 300 ms.
• Increase WDT timeout during OTA updates to prevent watchdog resets.
• Remove non thread-safe RF sequence caching.
• Update flatbuffers to 23.5.26.
• Start utilizing StringView more to reduce memory and CPU usage.
• Small code cleanup and refactoring.

Flashing the firmware

Download OpenShock_[board]_[version].bin and flash it to your microcontroller:

esptool write_flash 0x0 OpenShock_[board]_[version].bin