增加抖动波形查看部分代码

.gitignore

+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch

.vscode/extensions.json

+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}

include/README

+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

lib/README

+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in a an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html

platformio.ini

+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:featheresp32]
+platform = espressif32
+board = featheresp32
+framework = arduino
+lib_deps = 
+	adafruit/Adafruit MPU6050@^2.2.4
+	olikraus/U8g2@^2.34.15
+	kosme/arduinoFFT@^1.5.6

src/main.cpp

+#include <Adafruit_MPU6050.h>
+#include <Adafruit_Sensor.h>
+#include <Wire.h>
+
+Adafruit_MPU6050 mpu;
+
+void setup(void)
+{
+  Serial.begin(115200);
+  Wire.begin(21, 22);
+  while (!Serial)
+    delay(10); // will pause Zero, Leonardo, etc until serial console opens
+
+  Serial.println("Adafruit MPU6050 test!");
+
+  // Try to initialize!
+  if (!mpu.begin())
+  {
+    Serial.println("Failed to find MPU6050 chip");
+    while (1)
+    {
+      delay(10);
+    }
+  }
+  Serial.println("MPU6050 Found!");
+
+  // setupt motion detection
+  mpu.setHighPassFilter(MPU6050_HIGHPASS_0_63_HZ);
+  mpu.setMotionDetectionThreshold(1);
+  mpu.setMotionDetectionDuration(20);
+  mpu.setInterruptPinLatch(true); // Keep it latched.  Will turn off when reinitialized.
+  mpu.setInterruptPinPolarity(true);
+  mpu.setMotionInterrupt(true);
+
+  Serial.println("");
+  delay(100);
+}
+
+void loop()
+{
+  /* Get new sensor events with the readings */
+  sensors_event_t a, g, temp;
+  mpu.getEvent(&a, &g, &temp);
+
+  /* Print out the values */
+  Serial.println(g.gyro.y);
+}
\ No newline at end of file

test/README

+
+This directory is intended for PlatformIO Test Runner and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html