Terrapin-Rocket-Team/SRAD-Avionics
Dec 2024 – May 2025
4 Months active
Languages Used
GERBERKiCadGerberINIKicadCC++
Technical Skills
Gerber File GenerationHardware DesignKiCadPCB DesignPCB LayoutEmbedded Systems Development
varun unnithan
PROFILE
Varun Unnithan
Varun Unnithan developed advanced avionics hardware and embedded systems for the Terrapin-Rocket-Team/SRAD-Avionics repository, focusing on production-ready PCB designs and robust flight operations. He engineered compact microcontroller boards and high-range IMU sensor layouts, optimizing for manufacturability and signal integrity using C, C++, and KiCad. Varun integrated Bluetooth and radio communication modules, implemented stepper motor control with STM32, and established end-to-end avionics coordination for flight stages. His work included generating complete Gerber fabrication packages and debugging embedded firmware, resulting in seamless manufacturing handoff and reliable telemetry. The depth of his contributions ensured both hardware readiness and robust system integration.
Overall Statistics
Feature vs Bugs
83%Features
Repository Contributions
26Total
Bugs
2
Commits
26
Features
10
Lines of code
258,028
Activity Months4
Your Network
8 people
Work History
May 2025
2 Commits • 1 Features
May 1, 2025May 2025: SRAD-Avionics delivered production-readiness for the High-range IMU v1.0. Focused on design-for-manufacturing improvements, Gerber generation, and manufacturing handoff to enable first production run.
2 Commits • 1 Features
May 1, 2025May 2025: SRAD-Avionics delivered production-readiness for the High-range IMU v1.0. Focused on design-for-manufacturing improvements, Gerber generation, and manufacturing handoff to enable first production run.
May 2025
March 2025
13 Commits • 5 Features
Mar 1, 2025Month: 2025-03 — Terrapin-Rocket-Team/SRAD-Avionics Key features delivered - RotCam flight operations and avionics coordination: implemented rotational commands aligned with flight stages (drogue deployment, main parachute deployment, landing) and integrated APRS state management and radio initialization for synchronized telemetry and control. - Bluetooth and radio communications: added Bluetooth radio functionality, initialized module, and refined handling of Bluetooth data with radio transmissions for robust communications. - Stepper motor control system: STM32-based motor driver setup with homing, precise angle movement, and autonomous random movement behavior for test coverage. - Hardware fabrication files release: provided Gerber files for the LVMFB board and ground receiver PCB to enable manufacturing. - ESP32 tooling and debugging environment: introduced debug logging capabilities and ESP32 serial port configuration to aid development and troubleshooting. Major bugs fixed - Improved apogee detection and more reliable flight stage transitions within RotCam logic. - Corrected angle calculations and rotation state handling; updates to main firmware improved stability. - Stabilized Bluetooth initialization and data handling paths to prevent intermittent communications failures. Overall impact and accomplishments - Delivered end-to-end avionics integration with RotCam, enabling safer flight sequences and more reliable telemetry; manufacturing readiness achieved with Gerber releases; and an accelerated development cadence through enhanced debugging tooling and visibility. Technologies/skills demonstrated - Embedded systems: STM32, ESP32, Bluetooth, APRS, radio protocols - Mechanical control: stepper motor control, homing, autonomous movement - Hardware enablement: Gerber fabrication processes, PCB manufacturing readiness - Debugging and development workflows: logging, test harnesses, serial configuration
March 2025
13 Commits • 5 Features
Mar 1, 2025Month: 2025-03 — Terrapin-Rocket-Team/SRAD-Avionics Key features delivered - RotCam flight operations and avionics coordination: implemented rotational commands aligned with flight stages (drogue deployment, main parachute deployment, landing) and integrated APRS state management and radio initialization for synchronized telemetry and control. - Bluetooth and radio communications: added Bluetooth radio functionality, initialized module, and refined handling of Bluetooth data with radio transmissions for robust communications. - Stepper motor control system: STM32-based motor driver setup with homing, precise angle movement, and autonomous random movement behavior for test coverage. - Hardware fabrication files release: provided Gerber files for the LVMFB board and ground receiver PCB to enable manufacturing. - ESP32 tooling and debugging environment: introduced debug logging capabilities and ESP32 serial port configuration to aid development and troubleshooting. Major bugs fixed - Improved apogee detection and more reliable flight stage transitions within RotCam logic. - Corrected angle calculations and rotation state handling; updates to main firmware improved stability. - Stabilized Bluetooth initialization and data handling paths to prevent intermittent communications failures. Overall impact and accomplishments - Delivered end-to-end avionics integration with RotCam, enabling safer flight sequences and more reliable telemetry; manufacturing readiness achieved with Gerber releases; and an accelerated development cadence through enhanced debugging tooling and visibility. Technologies/skills demonstrated - Embedded systems: STM32, ESP32, Bluetooth, APRS, radio protocols - Mechanical control: stepper motor control, homing, autonomous movement - Hardware enablement: Gerber fabrication processes, PCB manufacturing readiness - Debugging and development workflows: logging, test harnesses, serial configuration
February 2025
9 Commits • 3 Features
Feb 1, 2025February 2025 performance summary for Terrapin-Rocket-Team/SRAD-Avionics focused on upgrading edge hardware, improving manufacturability, and robust signal integrity to enable faster production ramp and reduced field issues.
9 Commits • 3 Features
Feb 1, 2025February 2025 performance summary for Terrapin-Rocket-Team/SRAD-Avionics focused on upgrading edge hardware, improving manufacturability, and robust signal integrity to enable faster production ramp and reduced field issues.
February 2025
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 — SRAD-Avionics: Delivered a compact Teensy MCU Board v2.0 design with footprint optimization and a turnkey manufacturing data package. Updated the KiCad project and PCB layout to reduce size, enabling easier integration with avionics workflows and potential manufacturing cost reductions. Supplied complete fabrication data sets to support production: Gerber fabrication files for copper, soldermask, silkscreen, paste, edge cuts, and drill files for through-holes. Demonstrated end-to-end design-to-manufacturing readiness.
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 — SRAD-Avionics: Delivered a compact Teensy MCU Board v2.0 design with footprint optimization and a turnkey manufacturing data package. Updated the KiCad project and PCB layout to reduce size, enabling easier integration with avionics workflows and potential manufacturing cost reductions. Supplied complete fabrication data sets to support production: Gerber fabrication files for copper, soldermask, silkscreen, paste, edge cuts, and drill files for through-holes. Demonstrated end-to-end design-to-manufacturing readiness.
Activity
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Quality Metrics
Correctness87.6%
Maintainability87.6%
Architecture83.0%
Performance80.8%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++GERBERGerberINIKiCadKicad
Technical Skills
AvionicsAvionics SoftwareBluetoothCC++DebuggingElectronics EngineeringElectronics ManufacturingEmbedded SystemsEmbedded Systems DevelopmentGerber File GenerationGerber GenerationHardware DesignHardware EngineeringIoT
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