Core Viewpoint - The article emphasizes the high-quality materials and craftsmanship of the Niu M1 electric scooter's original controller, highlighting its superior design and components compared to cheaper alternatives available in the market [76]. Group 1: Controller Design and Materials - The controller features a robust black ABS outer shell and an aluminum alloy base with heat dissipation fins, indicating a strong build quality [3][5]. - The assembly of the controller is user-friendly, allowing for easy disassembly, which is beneficial for users with modification skills [7]. - The controller is designed with waterproof features, including silicone seals and a well-structured layout that enhances durability [14][16]. Group 2: Component Analysis - The controller's circuit board layout is symmetrical and well-organized, with significant components like power bus connections and large capacitors placed for optimal performance [19]. - It utilizes high-quality MOSFETs (STP15810) rated at 100V and 110A, which are more efficient than lower-cost alternatives that manufacturers might use to cut costs [35]. - The main control chip is an STM32F051C8T6 from ST, indicating a focus on reliable and efficient processing capabilities [51]. Group 3: Market Comparison and Consumer Insights - The article suggests that the original controller's quality is significantly higher than that of many aftermarket replacements, which often compromise on materials and performance [70]. - Consumers may be misled by repair shops into replacing high-quality components with inferior ones, highlighting a gap in consumer awareness regarding product quality [70]. - The author expresses curiosity about the current quality of controllers in new Niu electric scooters, suggesting that competition in the industry may have led to changes in manufacturing standards [70].