Diatomic hydrogen (H2) is valued for its rapid diffusion and high energy density across industries like energy, transportation, and aerospace. Safety concerns arise from its combustibility and odorless nature, necessitating sensitive hydrogen sensors for leak prevention. Among these sensors, resistive-based technologies are highlighted for cost-effectiveness and scalability. Various materials, including noble metals and organic compounds, have been explored for sensor development, each with its trade-offs like responsivity and response time. A novel approach using an organic semiconductor shows promise by leveraging p-doping to enhance sensor performance with high responsivity, fast response, low power consumption, and stability in harsh conditions. Fabrication involves platinum electrodes and a thin layer of the organic polymer DPP-DTT, showcasing superior performance compared to commercial sensors. The sensor's successful practical demonstrations underscore the potential of organic semiconductors in revolutionizing hydrogen sensing technology.