UWaterloo-Formula-Electric/firmware
Nov 2024 – Sep 2025
3 Months active
Languages Used
CDBCMakefileDockerfileJSONMarkdownShellYAML
Technical Skills
ADC ConfigurationAutomotive SoftwareC ProgrammingCAN BusCAN Bus CommunicationCAN bus
Jacky Lim
PROFILE
Jacky Lim
Jacky Lim contributed to the UWaterloo-Formula-Electric/firmware repository by developing and refining embedded automotive firmware, focusing on modularity, maintainability, and developer experience. He implemented new CAN bus features, enhanced data acquisition through ADC and FreeRTOS task improvements, and refactored state machines for safer vehicle control. Jacky consolidated VCU and DCU functionality, streamlined hardware interfaces, and introduced CLI enhancements for better system diagnostics. He also established a robust development environment using Docker and devcontainers, automated cross-platform builds with CI/CD, and improved documentation for onboarding. His work, primarily in C and Shell, demonstrated depth in embedded systems, build automation, and technical writing.
Overall Statistics
Feature vs Bugs
79%Features
Repository Contributions
58Total
Bugs
6
Commits
58
Features
23
Lines of code
5,538
Activity Months3
Your Network
6 people
Work History
September 2025
37 Commits • 13 Features
Sep 1, 2025September 2025 monthly summary for the UWaterloo-Formula-Electric/firmware repository. Focused on delivering developer experience improvements, containerization, cross‑platform testing, and build automation to accelerate onboarding and improve build reliability. Highlights include a complete development container setup with cantools 35.0.0 and Windows container guidance; cross‑platform setup tests; and extensive automation and documentation updates that standardize workflows and reduce time to value for firmware features.
37 Commits • 13 Features
Sep 1, 2025September 2025 monthly summary for the UWaterloo-Formula-Electric/firmware repository. Focused on delivering developer experience improvements, containerization, cross‑platform testing, and build automation to accelerate onboarding and improve build reliability. Highlights include a complete development container setup with cantools 35.0.0 and Windows container guidance; cross‑platform setup tests; and extensive automation and documentation updates that standardize workflows and reduce time to value for firmware features.
September 2025
December 2024
11 Commits • 6 Features
Dec 1, 2024In December 2024, delivered a set of core features and reliability improvements for the firmware stack, with a focus on modularity, system integration, and maintainability across the VCU/ DCU boundaries. Key deliverables include refactoring of the PDU control state machine with new channel toggling and enhanced CLI, consolidation of DCU functionality into the VCU with updated CAN messaging and heartbeat handling, porting LED task and hardware interfaces from DCU to VCU for consistent LED behavior, enhancements to HV/EM state management and VCU state machine for safer vehicle control, a general VCU state machine refactor and CLI cleanup to improve clarity, and firmware cleanup removing obsolete Beaglebone code. These changes reduce cross-component coupling, streamline testing, and improve fault reporting and diagnostics.
December 2024
11 Commits • 6 Features
Dec 1, 2024In December 2024, delivered a set of core features and reliability improvements for the firmware stack, with a focus on modularity, system integration, and maintainability across the VCU/ DCU boundaries. Key deliverables include refactoring of the PDU control state machine with new channel toggling and enhanced CLI, consolidation of DCU functionality into the VCU with updated CAN messaging and heartbeat handling, porting LED task and hardware interfaces from DCU to VCU for consistent LED behavior, enhancements to HV/EM state management and VCU state machine for safer vehicle control, a general VCU state machine refactor and CLI cleanup to improve clarity, and firmware cleanup removing obsolete Beaglebone code. These changes reduce cross-component coupling, streamline testing, and improve fault reporting and diagnostics.
November 2024
10 Commits • 4 Features
Nov 1, 2024November 2024 firmware monthly summary for UWaterloo-Formula-Electric/firmware: Delivered key CAN, data acquisition, and maintenance improvements that enhance reliability, observability, and readiness for 2025 PDU features. Implemented 2025 PDU CAN signals in the DBC, refined channel management, and added CLI support to enable/disable auxiliary power channels, with DBC updates and signal name/ID clarifications. Implemented real-time load sensing to enable proactive load monitoring (calibration pending). Strengthened ADC configurations and FreeRTOS task setup to improve data acquisition reliability and performance, including DMA/trigger configuration refinements. Performed an internal firmware refactor to improve module boundaries (lvMeasure rename, removal of the LTC4110 power task) and related task configuration tweaks, setting a cleaner foundation for future work. Resolved critical issues including a VCU inverter CAN status reporting bug and reversion of J1939 protocol changes to restore CANalyzer compatibility. Impact: higher reliability, better maintainability, and stronger readiness for upcoming PDU features; improved observability and faster issue resolution through clearer signaling and tooling.
10 Commits • 4 Features
Nov 1, 2024November 2024 firmware monthly summary for UWaterloo-Formula-Electric/firmware: Delivered key CAN, data acquisition, and maintenance improvements that enhance reliability, observability, and readiness for 2025 PDU features. Implemented 2025 PDU CAN signals in the DBC, refined channel management, and added CLI support to enable/disable auxiliary power channels, with DBC updates and signal name/ID clarifications. Implemented real-time load sensing to enable proactive load monitoring (calibration pending). Strengthened ADC configurations and FreeRTOS task setup to improve data acquisition reliability and performance, including DMA/trigger configuration refinements. Performed an internal firmware refactor to improve module boundaries (lvMeasure rename, removal of the LTC4110 power task) and related task configuration tweaks, setting a cleaner foundation for future work. Resolved critical issues including a VCU inverter CAN status reporting bug and reversion of J1939 protocol changes to restore CANalyzer compatibility. Impact: higher reliability, better maintainability, and stronger readiness for upcoming PDU features; improved observability and faster issue resolution through clearer signaling and tooling.
November 2024
Activity
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Quality Metrics
Correctness88.0%
Maintainability88.6%
Architecture87.0%
Performance87.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CDBCDockerfileJSONMakefileMarkdownShellYAML
Technical Skills
ADC ConfigurationAutomotive SoftwareBuild System ManagementBuild SystemsC ProgrammingCAN BusCAN Bus CommunicationCAN CommunicationCAN busCI/CDCLI DevelopmentContainerizationDBC file editingData Definition LanguageDevOps
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