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Rahul Das

PROFILE

Rahul Das

Rohit Dass developed and enhanced hardware-interfacing features for the fossasia/pslab-app and ankidroid/Anki-Android repositories, focusing on mobile and cross-platform workflows. He implemented real-time audio processing with FFT, oscilloscope waveform capture, and robotic arm control, integrating Flutter and Kotlin Coroutines for responsive UI and robust background operations. His work included CSV import/export for data persistence, I2C-based sensor integration, and web serial communication, addressing both usability and technical reliability. By refactoring state management and introducing CI/CD workflows with GitHub Actions, Rohit improved maintainability and onboarding. His engineering demonstrated depth in Android development, embedded systems communication, and signal processing.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

34Total
Bugs
10
Commits
34
Features
20
Lines of code
95,981
Activity Months12

Your Network

125 people

Shared Repositories

125
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Work History

April 2026

1 Commits • 1 Features

Apr 1, 2026

April 2026 monthly summary for fossasia/pslab-app. Delivered a major feature: inbuilt microphone FFT-based audio processing with enhanced oscilloscope frequency display. Implemented inbuilt mic FFT logic and added robust buffer management for streaming audio data, resulting in more accurate and responsive real-time audio analysis in the PSLab oscilloscope. The work was implemented via commit c8160ac22509fb168cf7e230a74d725c0392d87f with message inbuilt_mic_fft_logic.

March 2026

5 Commits • 3 Features

Mar 1, 2026

March 2026 monthly summary for fossasia/pslab-app. Focus this month was on enabling browser-based hardware interfacing, enhancing waveform capabilities, and simplifying theming, while improving measurement reliability. Key work includes web serial integration in the web UI, waveform/audio feature enhancements, and a critical bug fix that improves multimeter accuracy. These changes collectively advance hardware experimentation workflows, reduce maintenance overhead, and showcase strong engineering execution across frontend/web tech and signal processing domains.

February 2026

5 Commits • 2 Features

Feb 1, 2026

February 2026 (2026-02) monthly summary for fossasia/pslab-app: Delivered targeted user guidance, stabilized data visuals and navigation, and introduced development workflow improvements. The efforts focused on business value through improved onboarding, data integrity, stability, and faster cross-platform releases.

January 2026

1 Commits • 1 Features

Jan 1, 2026

Month: 2026-01 | Fossasia PSLab App — Monthly Summary Key features delivered: - Oscilloscope Screen Wake Lock: Integrated wakelock_plus to keep the device screen awake during oscilloscope usage, enabling uninterrupted data capture and analysis. Commit: 8cb6a618e06dabac00dde5ae94d8ba56e5e06a1d (feat: keep screen awake during active oscilloscope usage (#3026)). Major bugs fixed: - No major bugs fixed this month. Overall impact and accomplishments: - Enabled uninterrupted oscilloscope workflows by preventing screen sleep during data capture, improving data integrity and user experience during experiments. - Established a solid foundation for future power-management enhancements and improved session reliability in the PSLab oscilloscope workflow. Technologies/skills demonstrated: - Android power management and wakelock integration. - Version control hygiene with descriptive commits and traceability. - Focus on delivering business value through reliable data capture and user-centric features.

December 2025

4 Commits • 3 Features

Dec 1, 2025

December 2025 monthly summary for fossasia/pslab-app: Key features implemented include trigger-based oscilloscope with improved multi-channel data handling and FFT for audio input, UI/UX enhancements to the Instrument Guide and Drawer, and a refactor of issue templates to improve contributor onboarding. A notable bug fix addresses unintended scrolling in the Power Source knob via a selective gesture recognizer. These efforts collectively improve data capture reliability, user experience, and maintainability, while easing triage and collaboration for contributors.

November 2025

2 Commits • 2 Features

Nov 1, 2025

November 2025: Focused on delivering features to enhance data analysis workflows and contributor experience in fossasia/pslab-app. Implemented accelerometer data playback controls to improve review/QA of recorded events and added issue/PR templates to streamline contributions and tracking. No major bugs fixed this month; stability and process improvements were prioritized to support faster onboarding and lower turnaround times.

October 2025

1 Commits

Oct 1, 2025

October 2025 Monthly Summary (fossasia/pslab-app): The month focused on stabilizing sensor-related state management by ensuring provider instances are reused, reducing unnecessary instantiations and improving reliability and performance across sensor screens (accelerometer, gyroscope, and soundmeter). This aligns with core business goals of delivering a more robust, responsive sensor experience for end users.

September 2025

2 Commits • 2 Features

Sep 1, 2025

September 2025 (2025-09) monthly summary for fossasia/pslab-app. Focused on enhancing user experience in the recording workflow and expanding Luxmeter hardware support. Delivered two user-facing features, fixed a UI state bug, and laid groundwork for broader sensor integrations. Business impact includes clearer feedback during recording and extended sensor compatibility for lab measurements.

August 2025

4 Commits • 2 Features

Aug 1, 2025

Month: 2025-08. This monthly summary covers fossasia/pslab-app work focusing on usability, data persistence, and stability, with clear business value and technical impact.

July 2025

5 Commits • 2 Features

Jul 1, 2025

2025-07 Monthly Summary for fossasia/pslab-app: Delivered notable features for robotic arm control and app navigation, along with a targeted UI bug fix and improvements to data visualization. The work enhanced user capabilities in robotic arm experiments, streamlined access to PSLab Shop, and strengthened UI reliability, contributing to better user retention and workflow efficiency.

June 2025

1 Commits • 1 Features

Jun 1, 2025

June 2025: Delivered Robotic Arm Control Feature for fossasia/pslab-app, including UI for individual servo control, a programming/timeline feature, and hardware communication logic. Users can set servo angles and play back recorded movements. Feature ported into the app (commit: feat: Ported robotic arm (#2729)).

March 2025

3 Commits • 1 Features

Mar 1, 2025

This monthly summary highlights key features delivered, critical bugs fixed, and overall impact for the ankidroid/Anki-Android project in March 2025. The focus was on improving user experience around media handling and ensuring safer, more reliable data operations, with performance-conscious background processing.

Activity

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Quality Metrics

Correctness88.6%
Maintainability83.0%
Architecture80.8%
Performance82.6%
AI Usage27.6%

Skills & Technologies

Programming Languages

DartFlutterJavaKotlinMarkdownYAML

Technical Skills

Android DevelopmentAudio ProcessingBackground ProcessingBug FixingCI/CDCSV HandlingCoroutinesDartData PersistenceEmbedded SystemsEmbedded Systems CommunicationFlutterFlutter DevelopmentGitGitHub Actions

Repositories Contributed To

2 repos

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

fossasia/pslab-app

Jun 2025 Apr 2026
11 Months active

Languages Used

DartJavaFlutterMarkdownYAML

Technical Skills

Embedded Systems CommunicationFlutter DevelopmentMobile DevelopmentUI/UX DesignEmbedded SystemsFlutter

ankidroid/Anki-Android

Mar 2025 Mar 2025
1 Month active

Languages Used

JavaKotlin

Technical Skills

Android DevelopmentBackground ProcessingCoroutinesKotlin CoroutinesMobile DevelopmentPreference Management