add UNIT_SONIC Example

Author: Tinyu-Zhao

examples/Unit/UNIT_SONIC/UNIT_SONIC_I2C/UNIT_SONIC_I2C.ino

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+/*
+*******************************************************************************
+* Copyright (c) 2021 by M5Stack
+*                  Equipped with M5Core sample source code
+*                          配套  M5Core 示例源代码
+* Visit the website for more information：https://docs.m5stack.com/en/unit/sonic.i2c
+* 获取更多资料请访问：https://docs.m5stack.com/zh_CN/unit/sonic.i2c
+*
+* describe: Ultrasonic.  超声波测距传感器 I2C版本
+* date：2021/11/17
+*******************************************************************************
+  Please connect to Port A,Display the distance measured by ultrasonic
+  请连接端口A,显示超声波测量的距离
+*/
+
+#include <M5Stack.h>
+#include <UNIT_SONIC.h>
+#include <M5GFX.h>
+M5GFX display;
+M5Canvas canvas(&display);
+
+SONIC_I2C sensor;
+
+void setup() {
+  M5.begin(); //Init M5Stack.  初始化M5Stack
+  // sensor.begin(&Wire, 0x57, 21, 22, 200000L);
+  sensor.begin();
+  display.begin();
+  canvas.setColorDepth(1);
+  canvas.setFont(&fonts::Orbitron_Light_24);
+  canvas.setTextSize(1);
+  canvas.createSprite(display.width(), display.height());
+  canvas.setPaletteColor(1, ORANGE);
+}
+
+int point = 0;
+int last_point = 0;
+
+void loop() {
+  canvas.scroll(4);
+  float Distance = sensor.getDistance();
+  Serial.printf("Distance: %.2fmm\r\n",Distance);
+  point = map((int)Distance,20, 4500, 10, 180);
+  canvas.drawLine(0, point, 4, last_point, 1);
+  last_point = point;
+  canvas.fillRect(0,190,320,50,BLACK);
+  canvas.drawString(String(Distance)+"mm", 80, 190);
+  canvas.pushSprite(0,0);
+}

examples/Unit/UNIT_SONIC/UNIT_SONIC_IO/UNIT_SONIC_IO.ino

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+/*
+*******************************************************************************
+* Copyright (c) 2021 by M5Stack
+*                  Equipped with M5Core sample source code
+*                          配套  M5Core 示例源代码
+* Visit the website for more information：https://docs.m5stack.com/en/unit/sonic.io
+* 获取更多资料请访问：https://docs.m5stack.com/zh_CN/unit/sonic.io
+*
+* describe: Ultrasonic.  超声波测距传感器 IO版本
+* date：2021/11/17
+*******************************************************************************
+  Please connect to Port A,Display the distance measured by ultrasonic
+  请连接端口B,显示超声波测量的距离
+*/
+
+#include <M5Stack.h>
+#include <UNIT_SONIC.h>
+#include <M5GFX.h>
+M5GFX display;
+M5Canvas canvas(&display);
+
+SONIC_IO sensor;
+
+void setup() {
+  M5.begin(); //Init M5Stack.  初始化M5Stack
+  // begin(uint8_t trig = 26, uint8_t echo = 36);
+  sensor.begin();
+  display.begin();
+  canvas.setColorDepth(1);
+  canvas.setFont(&fonts::Orbitron_Light_24);
+  canvas.setTextSize(1);
+  canvas.createSprite(display.width(), display.height());
+  canvas.setPaletteColor(1, ORANGE);
+}
+
+int point = 0;
+int last_point = 0;
+
+void loop() {
+  canvas.scroll(4);
+  float Distance = sensor.getDistance();
+  Serial.printf("Distance: %.2fmm\r\n",Distance);
+  point = map((int)Distance,20, 4500, 10, 180);
+  canvas.drawLine(0, point, 4, last_point, 1);
+  last_point = point;
+  canvas.fillRect(0,190,320,50,BLACK);
+  canvas.drawString(String(Distance)+"mm", 80, 190);
+  canvas.pushSprite(0,0);
+}