scsd-cdh/OBC
Nov 2024 – Sep 2025
8 Months active
Languages Used
CC++XMLArduinoAssembly
Technical Skills
CC++Embedded SystemsFile SystemsMicrocontroller ProgrammingSPI Communication
Brendan Kelly
PROFILE
Brendan Kelly
Brew Kelly developed core embedded systems features for the scsd-cdh/OBC repository, focusing on Battery Management System integration, persistent storage, and real-time telemetry. He engineered end-to-end data paths using C and C++, implementing I2C and SPI communication protocols for reliable hardware interaction across MSP430 and SAMV71 microcontrollers. His work included ADC integration, device driver development, and middleware for telemetry, enabling remote monitoring and control. By refactoring interrupt handling and consolidating build systems, Brew improved maintainability and responsiveness. He also delivered robust file system persistence with LittleFS and MRAM, demonstrating depth in low-level firmware, hardware abstraction, and cross-platform embedded development.
Overall Statistics
Feature vs Bugs
89%Features
Repository Contributions
46Total
Bugs
2
Commits
46
Features
17
Lines of code
217,821
Activity Months8
Your Network
7 people
Work History
September 2025
15 Commits • 5 Features
Sep 1, 2025September 2025 performance summary for scsd-cdh/OBC: Focused on delivering core BMS capabilities, expanding ADC data visibility, and stabilizing timekeeping on the MSP MCU platform. Implemented ADS7138 integration via SWI2C with new driver and middleware, enabling external ADC reads and batch reads with telemetry paths. Migrated BMS timekeeping to RTC_C on MSP430FR5989, aligning with platform support and updating configuration. Adjusted Heater PWM timing to meet spec (99 instead of 1000) to ensure reliable heater control. Refactored non-blocking BMS architecture by moving long-running data collection out of ISR and introducing trigger flags, improving responsiveness and reliability. Performed codebase cleanup, added observability enhancements, and improved diagnostics for PWM/ADC to facilitate maintenance and faster MTTR.
15 Commits • 5 Features
Sep 1, 2025September 2025 performance summary for scsd-cdh/OBC: Focused on delivering core BMS capabilities, expanding ADC data visibility, and stabilizing timekeeping on the MSP MCU platform. Implemented ADS7138 integration via SWI2C with new driver and middleware, enabling external ADC reads and batch reads with telemetry paths. Migrated BMS timekeeping to RTC_C on MSP430FR5989, aligning with platform support and updating configuration. Adjusted Heater PWM timing to meet spec (99 instead of 1000) to ensure reliable heater control. Refactored non-blocking BMS architecture by moving long-running data collection out of ISR and introducing trigger flags, improving responsiveness and reliability. Performed codebase cleanup, added observability enhancements, and improved diagnostics for PWM/ADC to facilitate maintenance and faster MTTR.
September 2025
August 2025
3 Commits • 1 Features
Aug 1, 20252025-08 monthly summary for scsd-cdh/OBC focusing on deliverables, fixes, and impact. This period highlights driver integration for ADSIRTER7138 with I2C interface and data paths for thermistor/external ADC data, along with a stability fix in RoutineCycle_Process to reset stale flags at the start of each collection cycle. The work improves sensor data fidelity, BMS interoperability, and overall reliability of the data collection pipeline.
August 2025
3 Commits • 1 Features
Aug 1, 20252025-08 monthly summary for scsd-cdh/OBC focusing on deliverables, fixes, and impact. This period highlights driver integration for ADSIRTER7138 with I2C interface and data paths for thermistor/external ADC data, along with a stability fix in RoutineCycle_Process to reset stale flags at the start of each collection cycle. The work improves sensor data fidelity, BMS interoperability, and overall reliability of the data collection pipeline.
July 2025
5 Commits • 1 Features
Jul 1, 2025Month: 2025-07 — Performance review-focused monthly summary for the OBC repository. This period concentrated on delivering a robust development environment for BMS on CCS and reinforcing core stability of communication and timekeeping subsystems.
5 Commits • 1 Features
Jul 1, 2025Month: 2025-07 — Performance review-focused monthly summary for the OBC repository. This period concentrated on delivering a robust development environment for BMS on CCS and reinforcing core stability of communication and timekeeping subsystems.
July 2025
June 2025
3 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for scsd-cdh/OBC: Delivered end-to-end PWM-based heater control communication between Pico Master and BMS, enabling precise heater actuation and automated control. Implemented data integrity validation for PWM transmissions and added a dedicated PWM data test set. Enabled BMS to emit PWM signals on master request, providing active control of heaters and reducing manual tuning. This work improves safety, responsiveness, and energy efficiency, and establishes a scalable foundation for future control features.
June 2025
3 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for scsd-cdh/OBC: Delivered end-to-end PWM-based heater control communication between Pico Master and BMS, enabling precise heater actuation and automated control. Implemented data integrity validation for PWM transmissions and added a dedicated PWM data test set. Enabled BMS to emit PWM signals on master request, providing active control of heaters and reducing manual tuning. This work improves safety, responsiveness, and energy efficiency, and establishes a scalable foundation for future control features.
May 2025
14 Commits • 4 Features
May 1, 2025May 2025 monthly summary for scsd-cdh/OBC: Delivered core BMS telemetry integration with real ADC readings and GPIO flag telemetry, established CDH project foundations, added SAMV71 platform drivers, and shipped a system heartbeat indicator. The work improves telemetry accuracy, enables real-time monitoring, and lays groundwork for scalable command-and-data handling across the stack.
14 Commits • 4 Features
May 1, 2025May 2025 monthly summary for scsd-cdh/OBC: Delivered core BMS telemetry integration with real ADC readings and GPIO flag telemetry, established CDH project foundations, added SAMV71 platform drivers, and shipped a system heartbeat indicator. The work improves telemetry accuracy, enables real-time monitoring, and lays groundwork for scalable command-and-data handling across the stack.
May 2025
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for scsd-cdh/OBC: delivered hardware-level enhancements to Battery Management System with ADC pin expansion and cross-MCU compatibility, and implemented RTC initialization logic tailored to each MCU variant. All changes mapped to a single commit for traceability.
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for scsd-cdh/OBC: delivered hardware-level enhancements to Battery Management System with ADC pin expansion and cross-MCU compatibility, and implemented RTC initialization logic tailored to each MCU variant. All changes mapped to a single commit for traceability.
March 2025
4 Commits • 3 Features
Mar 1, 2025March 2025 (scsd-cdh/OBC): Implemented foundational BMS integration and telemetry capabilities, establishing the essential interfaces and workflows for future remote data access and control. Key features delivered include an I2C-based BMS communication framework with Tinyprotocol telemetry/telecommand support, telemetry-driven current/power status monitoring reported to the CDH, and development/build tooling with CCS project configuration to streamline BMS development. No major bugs reported this month; focus was on delivering robust foundational capabilities with clear upgrade paths. Business value and impact: Enables remote monitoring and control of the Battery Management System, improves system visibility, accelerates integration with hardware, and ensures reproducible builds for faster iteration and reduced maintenance cost.
4 Commits • 3 Features
Mar 1, 2025March 2025 (scsd-cdh/OBC): Implemented foundational BMS integration and telemetry capabilities, establishing the essential interfaces and workflows for future remote data access and control. Key features delivered include an I2C-based BMS communication framework with Tinyprotocol telemetry/telecommand support, telemetry-driven current/power status monitoring reported to the CDH, and development/build tooling with CCS project configuration to streamline BMS development. No major bugs reported this month; focus was on delivering robust foundational capabilities with clear upgrade paths. Business value and impact: Enables remote monitoring and control of the Battery Management System, improves system visibility, accelerates integration with hardware, and ensures reproducible builds for faster iteration and reduced maintenance cost.
March 2025
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for repo scsd-cdh/OBC. Delivered an end-to-end LittleFS + MRAM persistence example for Raspberry Pi Pico, demonstrating integration of the LittleFS filesystem with MRAM storage for persistent data. The deliverable includes LittleFS library files and an Arduino sketch to manage MRAM read/write, providing a concrete reference for edge-device persistence and data durability.
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for repo scsd-cdh/OBC. Delivered an end-to-end LittleFS + MRAM persistence example for Raspberry Pi Pico, demonstrating integration of the LittleFS filesystem with MRAM storage for persistent data. The deliverable includes LittleFS library files and an Arduino sketch to manage MRAM read/write, providing a concrete reference for edge-device persistence and data durability.
Activity
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Quality Metrics
Correctness86.4%
Maintainability86.2%
Architecture81.6%
Performance81.2%
AI Usage20.4%
Skills & Technologies
Programming Languages
ArduinoAssemblyCC++XML
Technical Skills
ADCADC IntegrationAPI DevelopmentAnalog-to-Digital Converter (ADC)Atmel Start FrameworkBit ManipulationBuild System ConfigurationBuild SystemsCC ProgrammingC++C/C++Clock System ConfigurationCommunication ProtocolsCommunication Protocols (I2C, TinyProtocol)
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