espressif/esp-nimble
Dec 2024 – Feb 2026
6 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 maintaining core Bluetooth Low Energy (BLE) firmware in C for embedded systems. Over six months, Shreeyash delivered a vendor-specific HCI event mask feature and focused on memory safety, reliability, and OTA update integrity through targeted bug fixes. His work included refactoring BLE connection management to prevent array overflows, implementing robust memory management in the GAP workflow, and safeguarding GATT client operations with boundary checks. By emphasizing code hygiene and stability, Shreeyash improved the maintainability and runtime safety of the NimBLE BLE stack for resource-constrained devices.
Overall Statistics
Feature vs Bugs
17%Features
Repository Contributions
6Total
Bugs
5
Commits
6
Features
1
Lines of code
142
Activity Months6
Your Network
229 peopleSame Organization
@espressif.com209
Shared Repositories
20
Work History
February 2026
1 Commits
Feb 1, 2026February 2026: BLE GAP connection cleanup implemented to prevent memory leaks, stabilizing the NimBLE-based GAP workflow in espressif/esp-nimble. Focused on memory-safe lifecycle of BLE connections with a targeted fix in ble_gap_conn_broken. Resulted in improved runtime stability and reduced memory footprint for constrained devices.
1 Commits
Feb 1, 2026February 2026: BLE GAP connection cleanup implemented to prevent memory leaks, stabilizing the NimBLE-based GAP workflow in espressif/esp-nimble. Focused on memory-safe lifecycle of BLE connections with a targeted fix in ble_gap_conn_broken. Resulted in improved runtime stability and reduced memory footprint for constrained devices.
February 2026
January 2026
1 Commits
Jan 1, 2026January 2026 focused on stabilizing the ESP-Nimble BLE host path by implementing a critical bug fix and validating memory safety in the Nimble stack. The major deliverable was a fix for the BLE Host Initialization assertion when periodic synchronization is disabled, addressing crashes and undefined behavior; this work, complemented by memory allocation checks, enhances reliability in constrained device scenarios and reduces field failures.
January 2026
1 Commits
Jan 1, 2026January 2026 focused on stabilizing the ESP-Nimble BLE host path by implementing a critical bug fix and validating memory safety in the Nimble stack. The major deliverable was a fix for the BLE Host Initialization assertion when periodic synchronization is disabled, addressing crashes and undefined behavior; this work, complemented by memory allocation checks, enhances reliability in constrained device scenarios and reduces field failures.
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
Loading activity data...
Quality Metrics
Correctness93.4%
Maintainability93.4%
Architecture93.4%
Performance93.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
C
Technical Skills
Bluetooth Low EnergyBluetooth Low Energy (BLE)C ProgrammingC programmingEmbedded SystemsFirmware DevelopmentMemory Managementembedded systems
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline