
Over 15 months, John Nystrom engineered robust embedded telemetry and data logging systems for the formulaslug/fs-3 repository, focusing on real-time vehicle monitoring and hardware integration. He developed and refined C and C++ codebases to support reliable CAN bus communication, SD card data persistence, and sensor integration, addressing challenges in data fidelity, build stability, and system maintainability. John implemented features such as wheel-position aware telemetry, precision voltage monitoring, and automated code generation for CAN protocols, while continuously improving build systems with CMake and modernizing repository structure. His work demonstrated depth in embedded systems, data handling, and cross-disciplinary hardware-software collaboration.
March 2026 monthly summary for formulaslug/fs-3: Delivered a targeted dashboard fault reporting improvement for Shutdown and Motor Controller indicators. Fixed and enhanced the main dashboard fault display by adjusting display parameters and fault-detection logic, resulting in clearer, more accurate fault reporting and faster triage. The change is captured in commit 8317ae3dfdd9557cd1bfc145e2c1f8a86a3b5bd9.
March 2026 monthly summary for formulaslug/fs-3: Delivered a targeted dashboard fault reporting improvement for Shutdown and Motor Controller indicators. Fixed and enhanced the main dashboard fault display by adjusting display parameters and fault-detection logic, resulting in clearer, more accurate fault reporting and faster triage. The change is captured in commit 8317ae3dfdd9557cd1bfc145e2c1f8a86a3b5bd9.
February 2026 monthly summary for formulaslug/fs-3. Focused on increasing measurement reliability and stabilizing telemetry builds. Key deliveries include a Voltage Reading Accuracy Improvement by raising ACC_STATUS_GLV_VOLTAGE max to 65535 mV to prevent overflow, and a Telemetry-Main build configuration fix to remove build blockers. These changes improved data fidelity, reduced overflow risk in voltage readings, and stabilized telemetry data collection for production systems.
February 2026 monthly summary for formulaslug/fs-3. Focused on increasing measurement reliability and stabilizing telemetry builds. Key deliveries include a Voltage Reading Accuracy Improvement by raising ACC_STATUS_GLV_VOLTAGE max to 65535 mV to prevent overflow, and a Telemetry-Main build configuration fix to remove build blockers. These changes improved data fidelity, reduced overflow risk in voltage readings, and stabilized telemetry data collection for production systems.
January 2026 monthly highlights focused on improving telemetry data fidelity through GLV voltage calculations. Delivered Telemetry GLV Voltage Precision Improvement for formulaslug/fs-3, implementing a targeted fix in the tmain GLV path to enhance precision handling and data representation in telemetry. Commit reference: d393b4ac0ad4cb8143c404bb180df1ce833af038. Business value: more accurate telemetry data supports reliable monitoring, alerting, and data-driven decision making. Technical impact: refined GLV voltage computation, improved numeric stability in the telemetry pipeline, and reduced potential data drift in GLV readings.
January 2026 monthly highlights focused on improving telemetry data fidelity through GLV voltage calculations. Delivered Telemetry GLV Voltage Precision Improvement for formulaslug/fs-3, implementing a targeted fix in the tmain GLV path to enhance precision handling and data representation in telemetry. Commit reference: d393b4ac0ad4cb8143c404bb180df1ce833af038. Business value: more accurate telemetry data supports reliable monitoring, alerting, and data-driven decision making. Technical impact: refined GLV voltage computation, improved numeric stability in the telemetry pipeline, and reduced potential data drift in GLV readings.
November 2025 monthly engineering summary for formulaslug/fs-3. Delivered key telemetry and monitoring enhancements with a focus on data fidelity, real-time visibility, and maintainability. Improvements span BMS temperature monitoring, telemetry rate, and vehicle state telemetry over CAN, combined with stability fixes and clearer flashing guidance. These work items collectively improve battery health visibility, response times, and overall system reliability for field monitoring and decision-making.
November 2025 monthly engineering summary for formulaslug/fs-3. Delivered key telemetry and monitoring enhancements with a focus on data fidelity, real-time visibility, and maintainability. Improvements span BMS temperature monitoring, telemetry rate, and vehicle state telemetry over CAN, combined with stability fixes and clearer flashing guidance. These work items collectively improve battery health visibility, response times, and overall system reliability for field monitoring and decision-making.
Month: 2025-10 monthly summary for formulaslug/fs-3 focusing on delivered features, bug fixes, impact, and skills demonstrated.
Month: 2025-10 monthly summary for formulaslug/fs-3 focusing on delivered features, bug fixes, impact, and skills demonstrated.
September 2025: Stabilized and streamlined the data logging pathway, hardened radio behavior, and cleaned the codebase to improve maintainability and developer velocity. Delivered concrete business value by reducing runtime issues, preventing unintended radio activity, and making the repository easier to onboard new contributors.
September 2025: Stabilized and streamlined the data logging pathway, hardened radio behavior, and cleaned the codebase to improve maintainability and developer velocity. Delivered concrete business value by reducing runtime issues, preventing unintended radio activity, and making the repository easier to onboard new contributors.
2025-08: Focused on reliability, safety, and developer velocity across telemetry, CAN integration, hardware control, wireless capability, and repository modernization. Improved data quality via enhanced telemetry data acquisition/logging and a safety-aligned thermal threshold update; enabled remote operability with wireless transmission; advanced CAN message parsing with autogeneration; and streamlined the build/system for faster iteration.
2025-08: Focused on reliability, safety, and developer velocity across telemetry, CAN integration, hardware control, wireless capability, and repository modernization. Improved data quality via enhanced telemetry data acquisition/logging and a safety-aligned thermal threshold update; enabled remote operability with wireless transmission; advanced CAN message parsing with autogeneration; and streamlined the build/system for faster iteration.
July 2025 monthly summary for formulaslug/fs-3: Delivered robust SD card data logging and data handling improvements, completed legacy Telemetry/CAN cleanup, and streamlined the codebase to reduce maintenance risk. The work improved data capture reliability, simplified ongoing maintenance, and demonstrated strong embedded C/C++ skills, robust debugging, and solid git hygiene.
July 2025 monthly summary for formulaslug/fs-3: Delivered robust SD card data logging and data handling improvements, completed legacy Telemetry/CAN cleanup, and streamlined the codebase to reduce maintenance risk. The work improved data capture reliability, simplified ongoing maintenance, and demonstrated strong embedded C/C++ skills, robust debugging, and solid git hygiene.
Month: 2025-06 — Focused on stabilizing and expanding the core data pipeline and tooling to unlock faster iteration and reliability in production deployments. Key activities included deepening Apache Arrow integration (memory strategy improvements, larger batch handling, and a custom encoder path), enabling a DBC to C++ code generator utility for automated codegen, and advancing NanoArrow integration with codegen progress and memory-conscious saves. The team also reworked the UI/workflow surface (dash layout switch and UI updates) to improve developer and operator experience, while driving maintainability through codebase reorganization and repository hygiene improvements. Save reliability work and targeted bug fixes underpinned stability for ongoing EV and telemetry workloads.
Month: 2025-06 — Focused on stabilizing and expanding the core data pipeline and tooling to unlock faster iteration and reliability in production deployments. Key activities included deepening Apache Arrow integration (memory strategy improvements, larger batch handling, and a custom encoder path), enabling a DBC to C++ code generator utility for automated codegen, and advancing NanoArrow integration with codegen progress and memory-conscious saves. The team also reworked the UI/workflow surface (dash layout switch and UI updates) to improve developer and operator experience, while driving maintainability through codebase reorganization and repository hygiene improvements. Save reliability work and targeted bug fixes underpinned stability for ongoing EV and telemetry workloads.
May 2025 monthly summary for formulaslug/fs-3. Focused on stabilizing the build, improving hardware interfaces, and removing legacy code to reduce maintenance. Delivered telemetry initialization, data persistence enablement, and drive improvements across ADC, SPI/I2C, and build system, enabling earlier telemetry capture and more reliable data flows. Legacy BMS code removal and gitignore cleanup reduced risk and maintenance overhead. Demonstrated cross-cutting skills in embedded C/C++, build pipelines, and hardware integration.
May 2025 monthly summary for formulaslug/fs-3. Focused on stabilizing the build, improving hardware interfaces, and removing legacy code to reduce maintenance. Delivered telemetry initialization, data persistence enablement, and drive improvements across ADC, SPI/I2C, and build system, enabling earlier telemetry capture and more reliable data flows. Legacy BMS code removal and gitignore cleanup reduced risk and maintenance overhead. Demonstrated cross-cutting skills in embedded C/C++, build pipelines, and hardware integration.
April 2025 performance summary focused on telemetry streaming, hardware interface hardening, and build/test tooling across formulaslug/fs-3 and formulaslug/fs-3-schematics. Delivered concrete features and fixes that reduce field debugging time, improve data reliability, and streamline developer workflows.
April 2025 performance summary focused on telemetry streaming, hardware interface hardening, and build/test tooling across formulaslug/fs-3 and formulaslug/fs-3-schematics. Delivered concrete features and fixes that reduce field debugging time, improve data reliability, and streamline developer workflows.
March 2025 focused on delivering tangible hardware capability, reducing maintenance burden, and tightening repo hygiene for formulaslug/fs-3. Key outcomes include a basic ATtiny1616 LED blink with MCC configuration to accelerate prototyping and enable future hardware features, plus maintenance work to remove legacy telemetry and improve repository cleanliness.
March 2025 focused on delivering tangible hardware capability, reducing maintenance burden, and tightening repo hygiene for formulaslug/fs-3. Key outcomes include a basic ATtiny1616 LED blink with MCC configuration to accelerate prototyping and enable future hardware features, plus maintenance work to remove legacy telemetry and improve repository cleanliness.
February 2025: Delivered core telemetry stack improvements, hardware design progress, and developer tooling enhancements. Key outcomes include a consolidated, non-blocking serial communication layer for LiveTelemetry and LiveTelemetryGround with flow control and status indicators; the TelemetryPeripheral project scaffolding and essential sources/headers; Live Telemetry Receiver Board V2 hardware design complete with schematic updates, PCB files, and BOM alignment; integration of a 10DoF IMU into Telemetry boards; and an interactive BOM viewer for the telemetry peripheral. Documentation updates for Mbed Tools CLI setup and TelemetryPeripheral README completed to improve onboarding and maintenance. These efforts collectively increased reliability, reduced integration risk, and accelerated hardware-to-software handoff.
February 2025: Delivered core telemetry stack improvements, hardware design progress, and developer tooling enhancements. Key outcomes include a consolidated, non-blocking serial communication layer for LiveTelemetry and LiveTelemetryGround with flow control and status indicators; the TelemetryPeripheral project scaffolding and essential sources/headers; Live Telemetry Receiver Board V2 hardware design complete with schematic updates, PCB files, and BOM alignment; integration of a 10DoF IMU into Telemetry boards; and an interactive BOM viewer for the telemetry peripheral. Documentation updates for Mbed Tools CLI setup and TelemetryPeripheral README completed to improve onboarding and maintenance. These efforts collectively increased reliability, reduced integration risk, and accelerated hardware-to-software handoff.
Month: 2025-01. Focused on establishing a live telemetry data path and improving repository hygiene to support faster iteration and cleaner collaboration for formulaslug/fs-3. Delivered two key items: telemetry radio setup enabling initial live data exchange between the telemetry device and ground station, and repository cleanup to exclude build artifacts and LSP cache. The work establishes a foundation for reliable telemetry, reduces maintenance noise, and accelerates future ground-station integrations and feature delivery.
Month: 2025-01. Focused on establishing a live telemetry data path and improving repository hygiene to support faster iteration and cleaner collaboration for formulaslug/fs-3. Delivered two key items: telemetry radio setup enabling initial live data exchange between the telemetry device and ground station, and repository cleanup to exclude build artifacts and LSP cache. The work establishes a foundation for reliable telemetry, reduces maintenance noise, and accelerates future ground-station integrations and feature delivery.
In 2024-11, delivered naming and consistency improvements in the formulaslug/fs-3-schematics project. Focused on Live Telemetry board naming, KiCad project and schematic file naming, and silkscreen labeling on the FS-3 Adaptor Board. Also fixed a project-wide spelling inconsistency in Live Telemetry Receiver Board directory/file names to improve maintainability and onboarding.
In 2024-11, delivered naming and consistency improvements in the formulaslug/fs-3-schematics project. Focused on Live Telemetry board naming, KiCad project and schematic file naming, and silkscreen labeling on the FS-3 Adaptor Board. Also fixed a project-wide spelling inconsistency in Live Telemetry Receiver Board directory/file names to improve maintainability and onboarding.

Overview of all repositories you've contributed to across your timeline