Worked on the Wiwynn/OpenBIC repository to enhance the reliability of hardware monitoring in embedded systems. Focused on firmware development using C, the work involved calibrating the MB_ADC_PVDD18_S5_VOLT_V sensor threshold to address persistent false high voltage readings. By adjusting the threshold value and validating the changes through lab testing, the update improved the accuracy of voltage monitoring and reduced the occurrence of false alarms. This targeted bug fix contributed to more dependable hardware monitoring within the system. The approach demonstrated careful analysis of sensor data and practical application of embedded systems expertise to resolve a specific reliability issue.