March 2026 was marked by substantial feature delivery, reliability improvements, and performance optimizations in the Battery-Emulator project. The work focused on realistic Pylon protocol integration, SOC management improvements, and data quality enhancements, delivering tangible business value through safer SOC handling, improved data fidelity, and easier maintainability. Notable outcomes include: - Pylon RS485 integration and protocol enablement across integration and protocol modules, enabling end-to-end simulation and testing of Pylon-based devices. - SOC controls enhancements, including an Atto3 SOC reset button to 100%, improved SOC diagnostic handling, and UI refinements such as hiding the recalibrate SOC option for now. - Data quality and interpretation improvements, including LFP cell voltage spoofing and missing value estimates, decoding Unknown0/Unknown1 for better data interpretation, and improvements to CAN content when LEAF BMS is not used along with inverter name validation. - Maintainability and UI quality improvements through code cleanup (removing old ifdefs, moving defines to private structs), UI/display enhancements, and targeted unit-test fixes. - Performance and configurability enhancements, including reduced CPU temperature data representation, UART baud rate handling improvements, configurable Pylon CAN baud rate, and additional configurability for voltage caps and general settings.

February 2026 (Battery-Emulator): Delivered RAM/flash optimizations and memory profiling for CAN/shunt data; enhanced battery management (current candidate, SOC based on DOD, inverted current sign, double pylon option) and precharge/standby logic; tightened voltage constraints and Rivian info pages; added CRC validation and corrected CRC calculations; improved measurement accuracy (offsets, datatype changes); updated voltage limits (Think City); improved CAN/HVIL wake behavior; expanded battery/data pages and Rivian error detection; performed extensive code cleanup, stability fixes, and OTA/flash optimizations; ESP32 platform maintenance to v3.3.x and build-flag improvements. Business value centers on data integrity, runtime reliability, model-agnostic compatibility, and reduced firmware footprint.

January 2026 (2026-01) Monthly summary for Battery-Emulator. Focused on stabilizing builds and tests, expanding hardware configurability, and improving maintainability while delivering data integrity improvements and safer initialization. The work enabled more reliable releases, better hardware support across variants, and clearer signaling for future enhancements.

Month 2025-12 — Battery-Emulator delivered a focused set of features, reliability fixes, and platform improvements that strengthen data accuracy, safety, and operator visibility. Key achievements include: (1) Data streaming switched to a constantly sent value for lower latency and improved reliability; (2) Inverter protocol and capacity enhancements enabling accurate current totals and Zoe2 capacity calculations; (3) Safety and UX improvements such as opening contactors on fault/inverter request, moving average cell voltage to the Battery Info page, and adding a Reset DTC button; (4) Testing and platform coverage with updated Zoe2 voltage scaling tests and 10mV test coverage, plus expanded support for Solax, Relion, and double Relion configurations; (5) Numerous bug fixes and stability improvements that enhance measurement accuracy and system reliability.

November 2025 monthly summary for dalathegreat/Battery-Emulator. Delivered multi-vehicle integration, performance and memory optimizations, and strengthened reliability through SOC, validation, and test improvements. These efforts expand vehicle compatibility, improve runtime efficiency, and reduce flash footprint, enabling safer field deployments and easier future scaling.

2025-10 Monthly Summary for Battery-Emulator (dalathegreat/Battery-Emulator). Focused on delivering core reliability, performance, and configurability improvements to support safe and efficient energy management, while enhancing developer productivity and maintainability. Highlights include targeted CAN optimization, BMS automation, configurable integrations, and testing enhancements that collectively reduce runtime load, improve fault handling, and enable faster validation cycles. Key features delivered: - CAN communication optimization and filtering: reduced CAN bus traffic to essential contactor commands; added filtering for 3A1 message openings; implemented contactor opening in fault handling; optimized CAN handler for faster execution. Commits include 895fd9a9ace6..., e235f69effdf..., 163af330d7d0..., ad316bbf0fa38... - BMS auto power-on and voltage handling: Stark BMS powers on by default; added voltage candidate; updated 12V polling; increased buffer size to 32 to align with other interfaces. Commits include 867512eecd, 80e29065..., 5e704c97..., f319e2f2... - Pylon HV integration and configurability: cleanup of unused Pylon messages, configurable send option, Pylon 30k offset/byteorder handling, and refactor of HV handling. Commits include bf0273d0..., 899318b1..., 60750c21..., 6f5e3369... - SSID/Password storage and activation in image: moved storage to common image and ensured changes apply on Save. Commits: 574aaebf..., e95173ec... - Interconnectivity and voltage-based controls: implemented interconnect contactor opening when voltage differences appear; added rampdown on SOC% for smoother transitions; 16th cell voltage reading added. Commits: 84ca6ba6..., a7628034..., 1ba9d9c7... - Testing improvements and documentation: raised testing limits for more extensive validation; updated contributing and PR templates to streamline reviews and consistency. Commits: 49024d95..., d8153c48..., a7f3c370... Major bugs fixed: - CAN message handling bug fix for 20A message: added missing break to prevent control-flow errors. Commit: 7608ad19f7... - Precharge timing reliability: move max precharge time evaluation to always be checked for reliable sequencing. Commit: f24338a384... - BMS reset counter: ensure reset event counter increments properly on success. Commit: 18da3655ab... - Compilation and build reliability: Devkit build now compiles; various warnings addressed; iX selection revert issue fixed; startup voltage saneness validated. Representative commits: 539d9be1..., 9c884b02..., 6ad8e2a5..., 42285a6a... - Logging and warnings cleanup: removed unused code and variables; fixed logging compiler warnings; changed time macro usages to suppress warnings. Representative commits: 25190696..., eff50648..., b5809731..., 05eba252... Overall impact and accomplishments: - Improved system safety and reliability through deterministic precharge sequencing and robust fault handling, reducing risk during start-up and fault conditions. - Reduced CAN bus load and improved real-time responsiveness, enabling faster contactor control and safer energy management. - Increased configurability and image-level settings for key hardware (Pylon, Kostal, Deye, BMW PHEV) supporting faster deployments and adaptation to customer requirements. - Strengthened testing and documentation processes, enabling more thorough validation and clearer contributor guidance. Technologies and skills demonstrated: - Embedded C/C++ firmware development, CAN bus optimization, fault handling, and real-time constraints. - ESP32/ESP32-S3 ecosystem updates; software maintenance (Software.cpp), versioning, and build optimization (Wextra, Wall flags, Werror handling). - Image and configuration management across hardware variants; improvements to data handling, memory footprint optimizations, and logging quieting. - Verification discipline: raised test limits, improved precharge reliability checks, and integration readiness for HV components and BMS systems. Business value: - Safer, more reliable battery energy management with deterministic precharge and fault response. - Faster time-to-validate features via expanded testing and streamlined image changes. - Flexible, scalable integration with Pylon, 2CAN, Modbus/RS485, and various battery configurations to support diverse deployments.

September 2025 monthly summary for dalathegreat/Battery-Emulator focusing on stability, configurability, and code hygiene. Key efforts centered on consolidating core image/config patterns, removing test artifacts, and increasing runtime configurability for core subsystems to improve realism and maintainability. Delivered notable features, bug fixes, and refactors with direct business value in reliability, security, and deployment readiness.

August 2025 Battery-Emulator: Delivered stability, scalability, and interoperability enhancements that expand deployment options and reliability. Key fixes improved boot reliability and control loop stability, while new integrations broaden compatibility with major inverter ecosystems. Software maintenance and dependency updates also elevated maintainability and observability across the stack.

Month: 2025-07 - Battery-Emulator (dalathegreat/Battery-Emulator) - concise monthly summary for performance review. 1) Key features delivered: - CAN Interface Abstraction: decoupled CAN sending interface from hardware specifics, enabling hardware-agnostic integration and easier future swaps. Commit ed26ba4103adbadd56e5fe6ec1c762c063ded29a. - Battery data reporting and SOC estimation enhancements: added battery name and capacity reporting, SOC estimation improvements, SOC candidate, and per-cell voltages with retry. Commits include: 25c60cb42b2a26b33c82dab554af310d8bab856a; a660b2048e66de2a74e2d5d55acaf60741dc9cf7; c2f193362247202273074057c4855a377cd7be88; b5527234535ee6cd1ed08171d9278311e4d51c0a. - Webserver-based Sofar ID configuration and documentation: added configurable Sofar ID via webserver and updated documentation. Commits: 920cd835611c5e21a6a4a39c1c96179302521044; dc443e580b2416ea9ae15c26510d6da26d3971a9; ced814e781e4675dc9ac20076a55b01242357a98; 3c3d3e6cf444ef88c0535fefaebf3ea6de9b849a. - System value delivery and efficiency: changed from polled to periodically sent values to improve efficiency and reduce bus load. Commit: 5f72e66acd308091a5ba7208775c98cd3f657a14. - Telemetry, protocol and platform enhancements: introduced lifetime energy tracking, CAN data temperatures, still-alive triggering for Tesla CAN messages, and support-related updates (Samsung SDI LV, PID polling version coverage, etc.) with related commits (c46b33df9f39ea0f33f998b24665a9fb207bb343; 53e662f82bb691120847f3e2f0ca64fcaaa72362; 627e6aeb26890b92da032ef76353adadc80e5db1; 5a564068675e162261cd4678ce1a1f3112a2c845; 436c3de1f7cc378724ebf4ad0e75444a9027061c; 59d4dd4a8a624f1f039ef7dfadf998880c7a4c0e). - Platform/library upgrades and maintenance: updated ESP32 SDK to 3.2.1, upgraded eModbus to v1.7.4, ArduinoJson to v7.4.2, ESPAsyncWebServer to v3.7.10, and related README/documentation updates. Commits include: b2587f3a368f3c0a56ee50942ae63ec2ee83946f; 024dae7c64b3cdda743dba4eb2fb2d4026a549b6; f38ed24bb1587ce9e223c273ef447a25ffc8f81b; 537c01a8b7599d423fc1115a9fe45338ce94dbee; fc13e69e91efd301ca7535ab5622fb0262b428d1. 2) Major bugs fixed: - Build and image stability: fixes to common image build and build system across the common module. Commits: e19ea67778846a7fb71594a5f1c0c58a3388dfb4; 407d066dfd235c289269faf8162ce3d45d859ec5. - Compilation and language safety: fixed compilation error, overflow warnings, and related issues (Sono, double battery scenarios). Commits: 1f9718b147164cff223592321545b0210e37fe36; 8f4bf68df7753f2d8e9ba4ac9b3df0b06befe880. - Correct data decoding and messaging: corrected decoding on cell matrix messages and PID_ENERGY_CAPACITY reading; removed pairing retransmission. Commits: 268e8b4947a226c8ddbac8ff9aab4c1455a18217; 37e7c883701f2466fb222a36efc598fd8b7e5764; 040abe6fa55c3d0919a58a94ffd628f1d8370742. - Reliability and safety fixes: MEB contactors opening after 49 days; WUP pin handling during reboots; improved safety for stopping charge/discharge when battery is full/empty. Commits: 3c0928d7fc2adf3bded1f21b0a16725346576e51; f77401a26f353abf2c51c5828d6296a2974addd4; 28a337684d27778b13603aeeaf0dd77e3c00205a. - UI and data integrity: Init/Error display for temperature on battery info page; remove wrong buttons. Commits: 2384e724036cb992a4159797f420d6ed85582358; 0e62e5fc4b7e1077e10add22c9f5946f11d67107. 3) Overall impact and accomplishments: - Substantial increase in maintainable hardware-agnostic CAN support, richer and more reliable battery telemetry, and enhanced configurability via a web UI. This reduces integration risk with new hardware, improves SOC visibility and safety, and enables scalable deployments. Platform upgrades and dependency updates reduce maintenance costs and improve security/stability. 4) Technologies/skills demonstrated: - Embedded C/C++, CAN bus integration, ESP32 ecosystem, web-server based configuration, telemetry and data pipelines, build automation and cross-module fixes, and disciplined maintenance practices (commit hygiene, documentation).

June 2025 monthly summary for shadPS4-emu/shadPS4, focusing on improving developer onboarding and setup reliability through updated documentation on recursive submodule cloning.

May 2025: Delivered major feature enhancements, critical bug fixes, and expanded interfacing for Battery-Emulator, delivering safer operation, better data visibility, and smoother integration with vehicle and inverter systems. Focused on robust control loops, safer battery monitoring, startup stability, and scalable CAN/sensor support, while maintaining strong maintainability and build clarity to support ongoing development and deployments.

April 2025: Delivered core Battery-Emulator enhancements and platform robustness. Key features include new 50 kWh standard range CAN interface with SOC scaling and a low-battery event, expanded H-CAN IDs, and added CAN messages for battery communication. Performance was boosted by faster current measurement sampling and timing guards, while the ESP32 platform was upgraded to 3.2.0 with CRC support and a refreshed build system. Observability and safety were improved via CPU temperature monitoring, a CPU overheat event, HVIL detection, and expanded CAN diagnostics. Additional improvements covered SOC mapping, voltage threshold tuning, data handling refinements, and updated documentation.

March 2025 Monthly Summary — Battery-Emulator (source: dalathegreat/Battery-Emulator) Overview: Delivered core sending capability with a visible status indicator, expanded CAN/NID support, log looping for continuous testing, broader hardware support with default configurations, and targeted UI and code quality improvements. Also stabilized builds after library updates, enhancing reliability and maintainability for customers and internal teams. Key features delivered: - Basic sending functionality with active-sending indicator to improve UX and automation readiness. (Commits e057df33..., c77d3bd9...) - CAN-FD support and extended ID handling to broaden protocol compatibility and future hardware support. (Commits 48e9ba91..., 1515f9ee...) - Log looping capability to enable iterative testing and repeated scenarios. (Commits 533bcc0f...) - Battery/hardware defaults and expansion: 96S 69kWh SPA battery support with default LED set to Classic, plus skeleton for CMFA-EV battery; removal of obsolete serial-link option. (Commits 84fb5bab..., bba87830..., 2c0e5be5..., c77ead8d...) - Code cleanup, UI simplification, and performance enhancements: removal of drag-and-drop and progress bar, refactoring for readability, and performance tweaks (e.g., lookup table, batching CAN sending). Also updated project dependencies (ArduinoJSON 7.3.1, AsyncTCP 3.3.6, ESPAsyncWebserver 3.7.2). (Multiple commits including 50014a8a..., 58801b94..., d754937a..., 545fceb4..., 27c29867...) Major bugs fixed: - Replay stability: fixed playback when order is wrong and prevented crashes when replaying empty logs. (Commits 8c44da70..., 7869997d..., effd80cc58...,) - Duplicate/erroneous logging fixes: prevented duplicate logging of FD and fixed SD logging duplication. (Commits aa3128fa..., 2ad2756c...) - Build reliability: compilation and include-order fixes after library updates. (Commits 50014a8a..., 58801b94...) - Additional stability improvements: robust replay behavior, removal of outdated delay-workarounds, and safe variable usage. (Commits effd80cc..., c4cc9a96..., 92e62fad...) Overall impact and accomplishments: - Increased reliability and developer velocity by stabilizing the build, expanding CAN/hardware support, and improving user experience through a clearer sending status and UI simplifications. - Enabled broader adoption with new battery configurations and more informative data surfaces, reducing time-to-value for customers integrating Battery-Emulator. Technologies/skills demonstrated: - Embedded C/C++ development, CAN bus protocols (CAN-FD, extended IDs), and performance optimization (batch sending, lookup-tables). - Build-system hygiene and dependency management (ArduinoJSON, AsyncTCP, ESPAsyncWebserver) and cross-component refactoring for readability and maintainability. - Debugging discipline for replay robustness, logging correctness, and compilation stability.

February 2025 (2025-02) - Battery-Emulator (dalathegreat/Battery-Emulator) monthly performance summary focused on delivering core telemetry features, broader hardware integration, and reliability improvements with clear business value. Highlights include targeted feature delivery for MQTT telemetry and hardware coverage, and focused reliability fixes that reduce production risk.

Monthly summary for 2025-01 for dalathegreat/Battery-Emulator. This month focused on expanding BMS integration, reliability, and build hygiene, delivering a broader battery-management feature set while improving performance and stability. Key features delivered include: Task priority setting for CAN addons; Performance improvements with polling speedups and improved request handling; BMS power reset and BMS2 power support; Volvo/Polestar: contactor closing and DTC reset; Sono Motors Battery support; Increased data coverage with more battery info data; SPA now uses BMS-allowed charge/discharge values; Release-related versioning and build system updates. Major bugs fixed include: Version signaling updates for release and dev modes; Library updates: ArduinoJson 7.3.0 and CANFD 2517 toggle; Sanity checks for min/max readings and voltages; Datalayer fix for DISCONNECTED state on contactor open; Nissan Leaf battery writing fix; CAN: halt sending toward battery during BMS reset. The net effect is greater reliability, broader vehicle support, and improved performance, positioning the project for a stable release cycle. Technologies/skills demonstrated include embedded C/C++, build-system modernization, library dependency management, safety checks and validation, and proactive code cleanup.

Month: 2024-12. This period delivered substantial platform expansion and reliability improvements for Battery-Emulator in dalathegreat/Battery-Emulator. Key features include Volkswagen MEB platform support, OBD-II PID polling for BoltAmpera, and extended CAN messaging with dual-battery Santa Fe PHEV support, complemented by startup sequencing to manage inrush and improved polling efficiency. Major bug fixes addressed temperature scaling, PWM precharge, startup event stability, and logging hygiene. The work enabled smoother releases through tooling improvements, library migration to AsyncTCP with mutex protection, and structured versioning. Battery management capabilities were enhanced with autodetection for battery2, double-battery cell voltage support, Tesla LFP balancing, and SOC balancing safeguards. Overall impact: broader vehicle support, more reliable data, better performance, and cleaner maintenance workflow.

November 2024 monthly summary for dalathegreat/Battery-Emulator. The month delivered a focused mix of feature deliveries, reliability fixes, and improvements to observability and automation, enabling broader hardware support and stronger run-time stability.