初始化提交

arduino-cli/libraries/M5Core2-master/examples/Unit/JOYSTICK/JOYSTICK.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/unit/joystick
+* 获取更多资料请访问: https://docs.m5stack.com/zh_CN/unit/joystick
+*
+* describe: JOYSTICK.
+* date: 2021/8/30
+*******************************************************************************
+  Please connect to PortA,Read JOYSTICK Unit X, Y axis offset data and button status
+  请连接端口A,读取操纵杆单位X, Y轴偏移数据和按钮状态
+*/
+
+#include <M5Core2.h>
+
+#define JOY_ADDR 0x52  //define Joystick I2C address.  定义摇杆的I2C地址
+
+void setup() {
+  M5.begin();
+  M5.Lcd.setCursor(70, 0, 4);
+  M5.Lcd.println(("Joystick Test"));
+  dacWrite(25, 0);  //disable the speak noise.  禁用语音噪音
+  Wire.begin(32, 33, 400000UL);
+}
+
+char data[100];
+void loop() {
+  static uint8_t x_data, y_data, button_data;
+  M5.Lcd.setCursor(100, 50, 4);
+  M5.Lcd.printf("X:%d      ", x_data);
+  M5.Lcd.setCursor(100, 80, 4);
+  M5.Lcd.printf("Y:%d      ", y_data);
+  M5.Lcd.setCursor(100, 110, 4);
+  M5.Lcd.printf("B:%d      ", button_data);
+  Wire.requestFrom(
+      JOY_ADDR,
+      3);  //Request 3 bytes from the slave device.  向从设备请求3个字节
+  if (Wire.available()) {  //If data is received.  如果接收到数据
+    x_data = Wire.read();
+    y_data = Wire.read();
+    button_data = Wire.read();
+    sprintf(data, "x:%d y:%d button:%d\n", x_data, y_data, button_data);
+    Serial.print(data);
+  }
+  delay(200);
+}