MEHUL SOLANKI

Technical Skills

OS / Platform: RTOS, Bare Metal.

Wireless / Protocols: BLE, Custom Serial Protocol.

Tools & Debugging: JTAG, Ozone Debugger, LightBlue Mobile Application.

Languages: C, C++.

Hardware: NXP 54016 MCU, Realtek RTK8710CM (BLE).

• Architected and designed a BLE dealer application for over-the-air updates (OTAU) and device configuration, enabling scalable field updates and provisioning.
• Developed custom BLE services for OTAU on the Realtek RTK8710CM BLE chipset, ensuring reliable and secure firmware upgrades.
• Designed a proprietary (“genetic”) communication protocol over BLE, while adding support for existing protocols to maintain backward compatibility.
• Implemented BLE application-level security measures to mitigate man-in-the-middle (MITM) attacks.
• Designed a one-way authentication mechanism from the mobile application to the device, preventing unauthorized access and data tampering.
• Developed a custom serial communication protocol to enable reliable data exchange between two embedded controllers.
• Performed low-level debugging and validation using JTAG and Ozone, and verified BLE behavior using the LightBlue mobile application.
• Standardized coding practices within the team by creating clear documentation on guidelines and conventions for firmware development.

Technical Skills

OS / Platform: FreeRTOS, Bare Metal.

Protocols / Interfaces: UART, SPI, I2C, Proprietary NUP Protocol.

Tools / Hardware: Embedded C, NXP Kinetis K66 (32-bit MCU), MCUXpresso IDE, JTAG Debugger.

• Developed firmware for a range of Fire System Annunciator modules, including ACM30, ACM230, RLD, TM8, LDM32, and LDM60, ensuring safety-critical performance.
• Designed and developed AIO (Annunciator Input/Output) libraries for device enrollment, trouble reporting, and acknowledgment handling.
• Implemented handling for fire, CO, CO2, heat, and drill alarm events.
• Developed bidirectional command/response mechanisms between host and peripheral modules.
• Worked on access control products used for attendance, security, and monitoring, including systems based on biometric and smart-card authentication.
• Designed and implemented new features for existing access control devices.
• Ported device authentication libraries across different hardware variants.
• Developed in-house Linux tools and emulators to support restricted or unavailable target devices.
• Integrated proprietary NUP communication protocol, including X.509 certificate-based authentication.
• Designed and delivered simulators for all annunciator variants.
• Developed shift register drivers for LDM60 modules, with testing and documentation.

• Provided L2/L3 support and maintenance for Brew OS.
• Followed up with customers to analyze and resolve reported issues.
• Performed testing and feature support enhancements to improve platform stability and reliability.
• Project 5: Support and Maintenance of Qualcomm Brew OS
• Technical Skills
• OS / Platform: Qualcomm Brew OS

• Worked on a wireless POS device for ration distribution projects.
• Contributed to firmware development in C and supported handling of customer and distributor data.
• Assisted in testing and validation of POS device functionality.