espressif/esp-nimble
Dec 2024 – Sep 2025
4 Months active
Languages Used
C
Technical Skills
Bluetooth Low Energy (BLE)Embedded SystemsFirmware DevelopmentBluetooth Low EnergyC ProgrammingMemory Management
Shreeyash
PROFILE
Shreeyash
Shreeyash Bhakare contributed to the espressif/esp-nimble repository by developing and refining core Bluetooth Low Energy (BLE) firmware in C for embedded systems. Over four months, he delivered a vendor-specific HCI event mask feature and focused on memory safety, notably encapsulating per-connection BLE state to prevent array overflows and improve connection management. He addressed critical bugs, such as fixing OTA address handling to ensure reliable Over-The-Air updates and adding boundary checks in GATT client write operations to prevent buffer overflows. His work demonstrated a strong emphasis on robust memory management and maintainable BLE stack development within embedded environments.
Overall Statistics
Feature vs Bugs
25%Features
Repository Contributions
4Total
Bugs
3
Commits
4
Features
1
Lines of code
117
Activity Months4
Your Network
208 people
Work History
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary focused on reliability, robustness, and memory-safety improvements in the espressif/esp-nimble BLE stack. Implemented per-connection data encapsulation to prevent array overflow and improve connection management reliability. Specifically, connection-specific state (max TX octets and time) was moved from global arrays into per-connection members within the ble_hs_conn structure, reducing dependence on global state and the risk of invalid connection handle indexing. The change was deployed as a targeted fix with a single commit detail.
1 Commits
Sep 1, 2025September 2025 monthly summary focused on reliability, robustness, and memory-safety improvements in the espressif/esp-nimble BLE stack. Implemented per-connection data encapsulation to prevent array overflow and improve connection management reliability. Specifically, connection-specific state (max TX octets and time) was moved from global arrays into per-connection members within the ble_hs_conn structure, reducing dependence on global state and the risk of invalid connection handle indexing. The change was deployed as a targeted fix with a single commit detail.
September 2025
April 2025
1 Commits
Apr 1, 2025Month 2025-04 focused on stability and OTA reliability for espressif/esp-nimble. The primary delivery was a critical bug fix rather than new features. Fixed OTA address handling to prevent the peer address type from overwriting the OTA address type in ble_hs_conn_addrs, ensuring correct address data is preserved during Over-The-Air updates. The change reduces OTA update failures and improves update integrity. No new features were released this month; the emphasis was on robustness and maintainability.
April 2025
1 Commits
Apr 1, 2025Month 2025-04 focused on stability and OTA reliability for espressif/esp-nimble. The primary delivery was a critical bug fix rather than new features. Fixed OTA address handling to prevent the peer address type from overwriting the OTA address type in ble_hs_conn_addrs, ensuring correct address data is preserved during Over-The-Air updates. The change reduces OTA update failures and improves update integrity. No new features were released this month; the emphasis was on robustness and maintainability.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025: Delivered vendor-specific HCI event mask configuration for espressif/esp-nimble. Implemented host-side support to configure vendor-specific events and introduced ble_hs_send_vs_event_mask to control which vendor-defined HCI events are reported by the controller. Implemented in commit 0a221c0693af1c67622d0d10a9a96c0bd976b83a.
1 Commits • 1 Features
Mar 1, 2025March 2025: Delivered vendor-specific HCI event mask configuration for espressif/esp-nimble. Implemented host-side support to configure vendor-specific events and introduced ble_hs_send_vs_event_mask to control which vendor-defined HCI events are reported by the controller. Implemented in commit 0a221c0693af1c67622d0d10a9a96c0bd976b83a.
March 2025
December 2024
1 Commits
Dec 1, 2024December 2024: Improved GATT client safety in espressif/esp-nimble by adding a boundary check for the offset in ble_gattc_write_long. The fix prevents invalid writes, mitigates potential buffer overflows, and enhances data integrity and BLE interoperability for devices using the Nimble stack.
December 2024
1 Commits
Dec 1, 2024December 2024: Improved GATT client safety in espressif/esp-nimble by adding a boundary check for the offset in ble_gattc_write_long. The fix prevents invalid writes, mitigates potential buffer overflows, and enhances data integrity and BLE interoperability for devices using the Nimble stack.
Activity
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Quality Metrics
Correctness90.0%
Maintainability95.0%
Architecture95.0%
Performance95.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C
Technical Skills
Bluetooth Low EnergyBluetooth Low Energy (BLE)C ProgrammingEmbedded SystemsFirmware DevelopmentMemory Management
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