霍尔传感器是一种用于检测其周围磁场变化的传感器。它可以与阈值检测器结合使用作为开关，也可以用于测量磁场强度。ESP32开发板具有内置的 ...

What do you get when you combine an ESP32-S2, a machine-learning model, some Hall effect sensors, and a grip exercise toy? [Turfptax] did just that and created LASK4. The four springs push down ...