January 2026 monthly summary for ASU-SDSL/coconut-fsw: Delivered four key features focused on power efficiency, deployment reliability, and debugging tooling. No critical bugs fixed this month; targeted improvements reduce field power consumption, simplify deployment, and accelerate debugging. Overall, these changes improve device uptime, operational reliability, and developer productivity.

In December 2025, the coconut-fsw project delivered end-to-end improvements across radio startup validation, reliability hardening, Pico SDK integration, and expanded telemetry. The work focuses on business value: improving field reliability, reducing deployment risk, and enabling richer monitoring, while modernizing the build process and sensor coverage.

November 2025 monthly summary for ASU-SDSL/coconut-fsw focusing on reliability, observability, and maintainability improvements across telemetry, radio command handling, file system robustness, debugging instrumentation, and sensor reliability. Business value centers on increased uptime, faster issue detection, and clearer diagnostics, enabling more predictable downlink operations and easier maintenance.

October 2025 monthly performance summary for ASU-SDSL/coconut-fsw focused on reliability, security, and observability improvements with measurable business value. Key features delivered: - Antenna deployment workflow enhancements: macro-based auto-deploy disabled on boot, ack on deployment command for testing, and Lora mode switch notification. Commits include dad11e24c8a9a560afef11d506e58321a4934710, 7b349fef1cd7ecb4bf57091077826d1581f5e681, and b6854921d5dc6a0ce31189cc89dcd95cfec1b230. - Logging and filesystem log enhancements: introduced filesystem log support with an explicit acknowledgement path for ack return_data or fs_log, improving observability and traceability. Commits include e7126c457eee5011ff61f32eef5978f22a6ec37c and 329ac8b38eed5a9a79ad1745438aa667afcb29d1. - Security and access control enhancements: added auth token checks and fixed unsafe mutex usage in command counting, strengthening access controls and robustness. Commits include 766a8f5deeb1a08335052a572233f6d373b0a43c and aa5a477c35d4991675efa85ce2fffbae9cd39f80. - Timekeeping and RTC stability improvements: fixed time printing, implemented epoch-based timing, future time correction, and improved RTC behavior to ensure reliable scheduling. Commits include c03c4e6fac9da29db0cd5ebe0c7de03d481f8891, aa37ac0ab4da4c27a5138288de867c9c96f93e89, 3abf7a2c7320ad09718182fc1c3b2780b252469a, and 0d00e811095c9d5815bfa4ddb992e16a6b3592ff. - System robustness improvements: enhanced macros, packet reception handling, and reintroduced dead-man's switch (requires testing) to improve fault tolerance and safety. Commits include a57beca97fef926a3717f1618881ac6668f3fd4c and ae6d76d79f220cf43a68bbaaad416a97ba0c55ff. Major bugs fixed: - Radio control safeguards and constraints: removed hardcoded radio power behavior, enforced radio file name length constraints, and added a safeguard to reserve an unused command. Commits include d78bf2a8459217ba2e078a7b1077078536030605, cb0274693debc2b116e0d090ca8afdc0c6f02f01, and 384ff7c8f4b7f7b481e2087c6ecef1a85cc7f585. - Timeout, watchdog, and transmission reliability: tuned receive/transmit timeouts to 5000, adjusted watchdog timings, and fixed transmission issues to ensure reliable communication. Commits include be715fff411089a8bb8368c33722dc4cd9b5def2, 4cb8d265a69ed5f1b95d88d00e8b2168d3b96e0c, and 359d7d4f7dc1fc8895cf6208d203fa0d98ea791c. - Logging integration: fixed missing inclusion in last merge for file-logging integration, ensuring complete logging coverage. Commit: 03052cf1eb12283e1d602a18f1da12dc89d83ce7. - Non-return value path: fixed path that did not return a value, eliminating potential undefined behavior. Commit: 26cb297749c1c956a01de47efc53f61c141cd2be. Overall impact and accomplishments: - Improved device reliability and uptime through robust timekeeping, improved transmission reliability, and safer radio operation. - Strengthened security posture with token-based access checks and safer concurrency handling. - Enhanced observability and traceability via filesystem logging and explicit ack pathways, supporting faster issue diagnosis and auditability. - Upgraded system robustness with macro improvements and a reintroduced dead-man's switch (subject to testing). Technologies and skills demonstrated: - Embedded firmware development (C/C++), real-time clocks and epoch timing, and RTC stability - Secure coding practices: auth token checks, mutex safety, and input validation - Observability and logging: filesystem-based logs, ack pathways, and logging integration fixes - Fault tolerance and reliability engineering: timeouts, watchdog tuning, and dead-man switch strategy

September 2025 monthly work summary focusing on delivering safety, reliability, and maintainability improvements across two repos: ASU-SDSL/coconut-fsw and ASU-ASCEND/Spring-2025. Key efforts covered radio safety/compliance, task health monitoring, memory management, I2C-based peripheral control, and generation of paper-ready visualization assets.

Monthly summary for 2025-08 (ASU-SDSL/coconut-fsw): Delivered robust timekeeping and radio reliability improvements that reduce restart risk and improve post-restart operation. Implemented persistent epoch time measurement alongside system boot timing, and added periodic persistence of radio timing data to maintain accurate operation after restarts. Strengthened radio reliability with fixes to transmit completion handling, LoRa configuration macros, and mutex-protected timing data. Added persistent loading of last received time and a debug log for easier troubleshooting. Code quality improvements include removing duplicate code and renaming a file to bin, contributing to maintainability and clarity.

July 2025: Delivered a critical stability improvement for the coconut-fsw subsystem by fixing an infinite queue loop in the radio task during safe-mode transitions. Implemented a single-queue guard flag to ensure safe mode is queued only once after the fast-mode duration expires, eliminating the potential for unbounded looping and resource churn. The change is documented and traceable to a single targeted commit, enabling repeatable validation and future maintenance.

June 2025 monthly summary for ASU-SDSL/coconut-fsw. Focused on stabilizing the radio subsystem (LoRa) through hardware switch corrections, runtime mode management, and timing improvements. The work improved hardware configuration reliability, enabled safer and admin-controlled LoRa mode transitions, and enhanced timing stability to prevent prolonged fast-mode operation. These changes improve production reliability, maintenance effectiveness, and readiness for future features.

May 2025 performance summary for two repositories (ASU-SDSL/coconut-fsw and ASU-ASCEND/Spring-2025). Focused on security hardening, reliability improvements, and research data analysis groundwork, delivering measurable business value and technical impact across embedded and data-science workstreams. Key achievements: - Secure MCU operations: Added admin token authentication to MCU power cycle and heartbeat commands to ensure only authorized administrators can initiate critical actions (commit 20064c67f26b7b1d93b29280d6e7a09351094f3d). - Radio state transition fix: Ensured SX radio is included in radio state transitions, removing the previous skip condition to improve reliability (commit d13f04a3f86d9c4b68612a17f94c524beebef75b). - Radio module control enhancements and refactor: Improved radio control flow with GPIO level swapping for RFM/SX selection and removed RADIO_POWER macro in favor of direct calculations, simplifying maintenance and reducing errors (commits 95a68cc46691717c3eb0a1e64eee8430c45a6ecb; 97a33bb05f4a6444ce9bf3994bd886fa9a204470). - One-Wire timeout mechanism: Added and unified timeouts for one-wire communications (including DS18B20 support) to prevent indefinite blocking and improve system responsiveness (commits 0c359bccb54abebcc155e130292c30b0f0a38d14; d84e76484bf2ead2130bf081edfaeba1f68fc0da). - Data analysis work for paper: Began and expanded batch data analysis for potential paper, establishing reproducible workflows and groundwork for publication (Batch 1 and enhancements with repeated commits on f9926c60f347489e1c5150ec95bd469db90ac54e and its _chunk_16 variants). Impact and value: - Security posture improved by token-based admin control, reducing risk of unauthorized critical actions in MCU workflows. - Reliability and responsiveness enhanced in radio control and one-wire interfaces, contributing to higher uptime and better user experience in fielded deployments. - Data-analysis efforts lay the groundwork for a publishable paper, strengthening the research narrative and potential for external validation. - Demonstrated cross-domain proficiency in embedded systems, hardware-software integration, and data science workflows. Technologies/skills demonstrated: - Token-based authentication, MCU security, embedded control (GPIO, radio configuration), and code refactoring. - Reliability engineering (timeouts, DS18B20 support) and deterministic behavior in communication interfaces. - Data analysis, reproducible research practices, and batch-processing workflows for academic writing.

April 2025 monthly summary for two core repos: ASU-ASCEND/Spring-2025 and ASU-SDSL/coconut-fsw. Delivered cross-cutting features and reliability improvements across data processing, visualization, hardware telemetry, and documentation. Key outcomes include Metpy 2025 compatibility, robust flash data handling across components, enhanced graphs and layered visualization, OneWire DS18B20 telemetry groundwork, and improved data quality and sampling statistics, driving data fidelity, operational efficiency, and faster analytics workflows.

March 2025 performance summary for ASU-ASCEND/Spring-2025 and related projects. The team delivered a broad set of hardware integration, sensor expansion, data path hardening, and observability improvements that increase mission readiness and data fidelity across the platform. Highlights include migration of the GPS library to SparkFun ublox GNSS with compatibility fixes, extensive sensor expansion (BMP390 swap, ozone sensor class, TMP/SHTC/SCD40, ENS160 compensation adjustments), and main integration work to streamline deployment.

February 2025 monthly summary: Focused on delivering core radio/data integrity features, strengthening testing workflows, and establishing a robust recovery/observability foundation across two repositories. Key work delivered across ASU-ASCEND/Spring-2025 and ASU-SDSL/coconut-fsw improved field telemetry reliability, data persistence, and fault recovery while enabling safer, faster operational decision-making.

January 2025 performance snapshot for ASU-SDSL/coconut-fsw and ASU-ASCEND/Spring-2025: delivered a hardened radio subsystem with fault-tolerance improvements, ensured radio hardware pin definitions align with PCB layout, and added runtime configurability with persistent transmit power; reduced runtime overhead by removing radio logging; streamlined the radio data path and improved C++ integration; and laid groundwork for observability, CI, and comprehensive documentation. These efforts reduce field downtime, improve reliability, and accelerate future iterations across both projects.

December 2024 performance highlights for ASU-SDSL/coconut-fsw: Delivered key features with a focus on resilience, telemetry, and observability. The Radio Panic Handling and Recovery System (multi-module) unifies panic handling across RFM98 and SX1268 with initialization fallbacks, timeout-based recovery, configuration refactors, and enhanced logging to improve visibility and maintainability. Telemetry data queuing via the GSE pipeline was re-enabled, restoring end-to-end telemetry flow through the queue. These changes increase system uptime, reliability in field conditions, and enable faster incident analysis. Early speed-testing groundwork and improved task coordination across radio modules lay the foundation for performance validation and ongoing optimization.

Month: 2024-10 — ASU-SDSL/coconut-fsw: Focused on reliability and telemetry integration. Delivered a key feature: Radio-Telemetry Synchronization and Telemetry Queuing Enablement. The work fixed radio module selection by correcting enum usage in radio.cpp and enabled radio-based queuing of telemetry payloads in telemetry.c, ensuring telemetry is transmitted through the radio when connected and completing synchronization between telemetry and radio modules. This improves reliability and reduces telemetry loss by guaranteeing telemetry data is sent via the radio channel when the radio is connected.