Worked on enhancing the reliability of the CC2538 radio stack within the qmk/RIOT repository, focusing on embedded systems and radio communication protocols. Addressed a critical bug by implementing a fix that masks the length byte before CRC validation, ensuring the CRC is calculated solely on actual packet data. This technical approach, executed in C, reduced false CRC failures and minimized packet drops, thereby improving network stability and interoperability for CC2538 deployments. The work demonstrated proficiency in low-level bitwise operations and embedded networking, contributing to more robust packet reception and streamlined code maintainability within the RIOT project’s radio subsystem.