UWaterloo-Formula-Electric/firmware
Nov 2024 – Jun 2025
5 Months active
Languages Used
CMakefilePythonTkinterCSVConfigurationDBC
Technical Skills
CAN BusEmbedded SystemsFile I/OADCCubeMXDMA
aryanGajelli
PROFILE
Aryangajelli
Arjun Rajagopalan developed and enhanced embedded automotive firmware for the UWaterloo-Formula-Electric/firmware repository, focusing on safety-critical systems such as regenerative braking, battery management, and drive-by-wire controls. He implemented features like DMA-enabled ADC sampling, robust sensor calibration, and real-time CAN diagnostics, using C and Python to optimize performance and reliability. His work included refactoring input handling, improving SD card and debug module stability, and tuning control algorithms for smoother vehicle response. By addressing both feature development and bug fixes, Arjun delivered firmware that improved data integrity, system observability, and field reliability, demonstrating depth in embedded systems and real-time software engineering.
Overall Statistics
Feature vs Bugs
68%Features
Repository Contributions
50Total
Bugs
8
Commits
50
Features
17
Lines of code
42,576
Activity Months5
Your Network
6 people
Work History
June 2025
15 Commits • 7 Features
Jun 1, 2025June 2025 monthly summary for UWaterloo-Formula-Electric/firmware. The month focused on safety, reliability, and performance enhancements across regenerative braking, drive-by-wire control, diagnostics, and power management. Key outcomes include safer energy recovery, improved input smoothing for throttle/brake, expanded telemetry and diagnostics, and more robust precharge and torque configurations. This work lays a stronger foundation for field reliability, faster fault isolation, and a smoother driver experience while enabling deeper telemetry for support and product planning. Overall impact and accomplishments: - Safer, more predictable energy recovery with regenerative braking and throttle smoothing; endurance-mode based regen with safe speed limits implemented. - Safer drive-by-wire and input validation with enhanced throttle/brake sensing, safety checks, and input filtering. - Expanded monitoring and data visibility with CAN diagnostics enhancements and new data signals. - Improved system reliability for precharge and protection: eliminated discharge timeout risk and tuned precharge resistance. - Drive-by-wire tuning and torque configuration updates, enabling higher torque potential with refined thresholds and sensor handling. - BMS and charging diagnostics improvements for better pack visibility and actionable debugging outputs. Technologies/skills demonstrated: - Real-time safety-critical control (torque ramping, throttle/brake validation) - CAN bus signal design and logging strategy - EEPROM parameter tuning for Gamma_Adjust and drive-by-wire thresholds - Power electronics safety and diagnostics integration (precharge, BMS, AMS) - Robust heartbeat monitoring and fault signaling for reliability and monitoring
15 Commits • 7 Features
Jun 1, 2025June 2025 monthly summary for UWaterloo-Formula-Electric/firmware. The month focused on safety, reliability, and performance enhancements across regenerative braking, drive-by-wire control, diagnostics, and power management. Key outcomes include safer energy recovery, improved input smoothing for throttle/brake, expanded telemetry and diagnostics, and more robust precharge and torque configurations. This work lays a stronger foundation for field reliability, faster fault isolation, and a smoother driver experience while enabling deeper telemetry for support and product planning. Overall impact and accomplishments: - Safer, more predictable energy recovery with regenerative braking and throttle smoothing; endurance-mode based regen with safe speed limits implemented. - Safer drive-by-wire and input validation with enhanced throttle/brake sensing, safety checks, and input filtering. - Expanded monitoring and data visibility with CAN diagnostics enhancements and new data signals. - Improved system reliability for precharge and protection: eliminated discharge timeout risk and tuned precharge resistance. - Drive-by-wire tuning and torque configuration updates, enabling higher torque potential with refined thresholds and sensor handling. - BMS and charging diagnostics improvements for better pack visibility and actionable debugging outputs. Technologies/skills demonstrated: - Real-time safety-critical control (torque ramping, throttle/brake validation) - CAN bus signal design and logging strategy - EEPROM parameter tuning for Gamma_Adjust and drive-by-wire thresholds - Power electronics safety and diagnostics integration (precharge, BMS, AMS) - Robust heartbeat monitoring and fault signaling for reliability and monitoring
June 2025
May 2025
15 Commits • 5 Features
May 1, 2025May 2025 firmware work focused on reliability, safety, and performance across braking, energy management, and system debugging. Delivered end-to-end regenerative braking, enhanced braking telemetry, and improved UI feedback for precharge and energy reset flows, while hardening the runtime against field issues and improving maintainability.
May 2025
15 Commits • 5 Features
May 1, 2025May 2025 firmware work focused on reliability, safety, and performance across braking, energy management, and system debugging. Delivered end-to-end regenerative braking, enhanced braking telemetry, and improved UI feedback for precharge and energy reset flows, while hardening the runtime against field issues and improving maintainability.
April 2025
17 Commits • 4 Features
Apr 1, 2025April 2025 monthly firmware summary for UWaterloo-Formula-Electric/firmware. Focused on reliability, safety, and cross-board build stability, with enhanced observability to accelerate debugging and validation. Delivered core features for sensor calibration, input handling, and build/config stabilization, plus a critical open-circuit robustness bug fix. This work reduces safety risk, shortens issue reproduction cycles, and enables faster, more consistent releases across hardware variants.
17 Commits • 4 Features
Apr 1, 2025April 2025 monthly firmware summary for UWaterloo-Formula-Electric/firmware. Focused on reliability, safety, and cross-board build stability, with enhanced observability to accelerate debugging and validation. Delivered core features for sensor calibration, input handling, and build/config stabilization, plus a critical open-circuit robustness bug fix. This work reduces safety risk, shortens issue reproduction cycles, and enables faster, more consistent releases across hardware variants.
April 2025
January 2025
1 Commits • 1 Features
Jan 1, 2025Month: 2025-01. Focused on delivering reliable ADC data sampling with high throughput by enabling DMA for the ADC and aligning CubeMX configuration and driver settings. This work reduces CPU load during sampling and improves data capture reliability in the firmware stack.
January 2025
1 Commits • 1 Features
Jan 1, 2025Month: 2025-01. Focused on delivering reliable ADC data sampling with high throughput by enabling DMA for the ADC and aligning CubeMX configuration and driver settings. This work reduces CPU load during sampling and improves data capture reliability in the firmware stack.
November 2024
2 Commits
Nov 1, 2024November 2024 monthly summary focusing on firmware logging reliability improvements in the UWaterloo-Formula-Electric/firmware repository; delivered a critical bug fix to CAN log byte accounting, strengthening data integrity for telemetry and post-run analysis.
2 Commits
Nov 1, 2024November 2024 monthly summary focusing on firmware logging reliability improvements in the UWaterloo-Formula-Electric/firmware repository; delivered a critical bug fix to CAN log byte accounting, strengthening data integrity for telemetry and post-run analysis.
November 2024
Activity
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Quality Metrics
Correctness81.4%
Maintainability82.4%
Architecture74.2%
Performance72.0%
AI Usage21.2%
Skills & Technologies
Programming Languages
CCSVConfigurationDBCMakefilePythonTkinter
Technical Skills
ADCADC ConfigurationAnalog-to-Digital Conversion (ADC)Automotive SoftwareBattery Management SystemsBraking SystemsBuild System ConfigurationBuild SystemsC ProgrammingCAN BusCAN Bus CommunicationCode GenerationConfiguration ManagementControl SystemsCubeMX
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