https://sensor.fans/models/ss49e/Recent content in SS49E on 如是有为HugozhSun, 30 Aug 2026 06:06:00 +0800https://sensor.fans/posts/ejhl4jayxg76qy8gkhoahq/Sun, 30 Aug 2026 06:06:00 +0800https://sensor.fans/posts/ejhl4jayxg76qy8gkhoahq/<p><img src="https://sensor.fans/images/wx/08f77c0b3245dec5e0af6d37fb500412.jpg" alt="「霍尔够用了」这四个字有四条前提" loading="lazy" decoding="async"> </p> <p>总有人问我，一个要加角度/位置检测的码盘，要不要再往上堆一颗更贵的。我通常就一句话：霍尔够用了。磁轴键盘那种场合，一颗 SS49E 一类的小线性霍尔，几毛钱，SOT-23 一个小管子，输出接主控的 ADC 扫一圈，就到头了——没必要上磁编。</p>