初始化提交

arduino-cli/libraries/M5Core2-master/examples/Unit/HALL/HALL.ino

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+/*
+*******************************************************************************
+* Copyright (c) 2021 by M5Stack
+*                  Equipped with M5Core2 sample source code
+*                          配套  M5Core2 示例源代码
+* Visit the website for more information: https://docs.m5stack.com/en/core/core2
+* 获取更多资料请访问: https://docs.m5stack.com/zh_CN/core/core2
+*
+* describe: Hall.  霍尔传感器
+* date: 2021/8/18
+*******************************************************************************
+  Please connect to Port B,Displays a string on the screen.
+  请连接端口B,在屏幕上显示字符串。
+  Low-level signal can be generated when the magnet S pole is close to the front of the sensor
+  当磁体S极靠近传感器前端时，会产生低电平信号
+  OR the N pole is close to the back, and the internal LED indicator will light up, the screen wiil display 0.
+  或N极靠近背面，内部LED指示灯亮起，屏幕显示0。
+*/
+
+#include <M5Core2.h>
+
+#define HALL 36
+
+void setup() {
+  M5.begin(); //Init M5Core2.  初始化M5Core2
+  M5.lcd.setTextSize(2);  //Set the text size to 2.  设置文字大小为2
+  M5.Lcd.print("     HALL Sensor");
+  pinMode(HALL, INPUT); //Set the pins to which the Hall sensor is connected to the input mode.  将霍尔传感器所连接的引脚设置为输入模式
+}
+
+void loop() {
+  bool status = digitalRead(HALL);
+  M5.Lcd.setCursor(20, 80);
+  M5.Lcd.printf("Hall status : %d", status);
+}