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Andrew Yong

PROFILE

Andrew Yong

Over 11 months, Ndoo contributed to meshtastic/firmware and openwrt/packages by developing hardware integrations, refining embedded systems, and improving IoT device reliability. He engineered new board variants, enhanced power management, and expanded LoRa and MQTT support, using C, C++, and Shell scripting. His work included aligning firmware with hardware capabilities, optimizing configuration management, and implementing user-configurable telemetry. In meshtastic/firmware, he addressed device onboarding, regulatory compliance, and documentation clarity, while in openwrt/packages, he packaged and updated NanoMQ for IoT edge deployments. Ndoo’s engineering demonstrated depth in embedded systems, hardware abstraction, and cross-repository collaboration, resulting in robust, maintainable solutions.

Overall Statistics

Feature vs Bugs

65%Features

Repository Contributions

24Total
Bugs
7
Commits
24
Features
13
Lines of code
1,510
Activity Months11

Work History

February 2026

1 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary: Implemented MQTT Map Reporting Enhancement in meshtastic/firmware to send the first MapReport immediately after a valid location fix and to throttle warnings when the position is unavailable. The change eliminates startup delays caused by the initial last_report_to_map value, preserves the map reporting cadence, reduces log spam, and improves reliability of map data delivery.

January 2026

4 Commits • 4 Features

Jan 1, 2026

January 2026 delivered foundational hardware integration and energy-management enhancements across firmware and device ecosystems, driving expanded use cases (balloon missions, odor detector deployments) while improving data governance and field readiness. Key business value includes enabling new mission-ready hardware, reducing power consumption, and providing user-configurable telemetry to meet privacy/compliance needs. Cross-repo collaboration and documentation shortened field-time for bringing up new devices and features.

November 2025

2 Commits • 1 Features

Nov 1, 2025

Month: 2025-11 — Focused packaging work for OpenWrt to enable IoT messaging at the edge. Delivered a new NanoMQ package with configuration and installation scripts, and updated to NanoMQ 0.24.6 per release notes. Ensured alignment with OpenWrt packaging standards and prepared for IoT Edge/SDV deployments.

October 2025

3 Commits

Oct 1, 2025

October 2025: Strengthened firmware reliability and hardware parity in meshtastic/firmware. Delivered two major bug fixes that impact hardware variants and user-visible behavior, with enhanced test coverage to increase confidence before release. Demonstrated robust embedded development practices and effective cross-team collaboration to improve device consistency and reduce field-configuration issues.

September 2025

1 Commits • 1 Features

Sep 1, 2025

September 2025: Key feature delivered in meshtastic/firmware is a new ESP32 hardware variant 9m2ibr_aprs_lora_tracker with build environment configuration and pin mappings for OLED, GNSS, controls, indicators, battery sense, and LoRa. Multi-LoRa module support was added, enabling use with EBYTE E22, RFM95, SX1262, SX1268, and LLCC68. The change is recorded in commit fe329892def991b842c2efd6dcc55217a1810086 with message 'feat: New ESP32 variant 9m2ibr_aprs_lora_tracker (#7828)'. Overall impact: expands hardware compatibility for APRS tracking, reduces onboarding time for new devices, and strengthens network interoperability.

July 2025

3 Commits • 2 Features

Jul 1, 2025

July 2025 monthly summary for meshtastic/firmware: Delivered expanded LoRa hardware variant support for Seeed XIAO NRF52840 and ESP32-C3 Super Mini, along with improved onboarding documentation for xiao_ble and E22 configurations. This work broadens device compatibility, reduces setup friction, and positions the project for broader adoption.

June 2025

5 Commits • 2 Features

Jun 1, 2025

June 2025 firmware work for meshtastic/firmware focused on expanding hardware compatibility, stabilizing I2C interfaces, and improving LED and power management for Seeed XIAO-based boards. Deliverables include seeed XIAO nRF52840 kit improvements, XIAO BLE variant enhancements with multi-pinout support, and critical I2C/legacy pinout fixes that reduce initialization issues and broaden module support.

May 2025

1 Commits

May 1, 2025

Month: 2025-05 — Focused on reliability and accuracy improvements in transmitter power regulation for meshtastic/firmware. Delivered a targeted fix by refactoring the RadioInterface power gain calculation and clamping logic, renaming a constant for clarity, and moving the power-limiting function to correctly account for pre-PA transmit power. This ensures user-configured power aligns with actual output across radio interfaces, enhancing deployment predictability, battery efficiency, and compliance readiness. The work also yields a clearer, more maintainable code path for future power management enhancements.

March 2025

2 Commits • 1 Features

Mar 1, 2025

Month: 2025-03 — Concise monthly summary focused on business value and technical achievements. Highlighted items: - ESP32 Button Setup Reliability: Fixed inconsistent BUTTON_PIN by defaulting to -1 to ensure reliable button initialization on ESP32 devices, addressing issue #6213. This reduces boot-time failures and improves user experience across ESP32 deployments. - Regulatory Gain Tuning for LoRa SX126x (xiao_ble variant): Increased maximum transmit power by adjusting REGULATORY_GAIN_LORA and SX126X_MAX_POWER to 7 dB, based on recent measurements, to meet regulatory requirements and optimize link performance. Commit 95523a9659efe2a4e711d7e42f84e1b99f8a4b54 (issue #6466). Overall impact and accomplishments: - Improved reliability of ESP32-based hardware initialization, reducing support load and customer-facing incidents. - Achieved regulatory-compliant power tuning for LoRa transmissions, enabling higher performance within compliance. - Maintained clear traceability with commits linked to specific issues for QA and audits. Technologies/skills demonstrated: - Embedded C/C++ firmware development for ESP32 and SX126x LoRa transceivers. - Hardware/software integration and regulatory tuning. - Version control discipline and issue-tracking with meaningful commit messages.

February 2025

1 Commits • 1 Features

Feb 1, 2025

February 2025 — Meshtastic project (meshtastic/meshtastic). Focused on aligning documentation with code expectations for GPS mode inputs. Updated position.mdx to specify that position.gps_mode accepts case-sensitive, all-caps values to prevent user-input errors. No major bugs fixed this month; the primary deliverable improved user onboarding and reduced support friction by clarifying input formats. This work demonstrates solid collaboration between docs and code, with a direct impact on user experience and adoption.

December 2024

1 Commits

Dec 1, 2024

December 2024 firmware maintenance for matteocrippa/firmware focused on aligning the tlora_v2_1_16 hardware variant with its actual capabilities by removing unsupported user button configurations. Delivered a targeted cleanup that unsets BUTTON_PIN and BUTTON_NEED_PULLUP, ensuring builds reflect hardware reality while preserving reconfigurability via device settings. Achieved with a single, well-scoped commit, reducing complexity and maintenance risk for future releases.

Activity

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Quality Metrics

Correctness95.0%
Maintainability93.4%
Architecture92.0%
Performance93.8%
AI Usage20.0%

Skills & Technologies

Programming Languages

CC++INIMakefileMarkdownPatchShell

Technical Skills

Build SystemsC ProgrammingC++C++ programmingConfiguration ManagementDevice DriversDocumentationEmbedded SystemsEmbedded Systems DevelopmentFirmware DevelopmentHardware AbstractionHardware ConfigurationHardware IntegrationIoTIoT Development

Repositories Contributed To

4 repos

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

meshtastic/firmware

May 2025 Feb 2026
7 Months active

Languages Used

C++CINIMarkdown

Technical Skills

C++Embedded SystemsFirmware DevelopmentRadio CommunicationBuild SystemsDevice Drivers

matteocrippa/firmware

Dec 2024 Mar 2025
2 Months active

Languages Used

C++C

Technical Skills

Embedded Systems DevelopmentHardware ConfigurationConfiguration ManagementEmbedded SystemsFirmware Development

meshtastic/meshtastic

Feb 2025 Jan 2026
2 Months active

Languages Used

Markdown

Technical Skills

Documentationconfiguration managementdocumentation

openwrt/packages

Nov 2025 Nov 2025
1 Month active

Languages Used

MakefilePatchShell

Technical Skills

IoT DevelopmentLinux Package ManagementNetworkingbuild systemspackage management