
Arduino Quick Start
StopWatch IMU-related input APIs and sample programs.
#include <M5Unified.h>
void setup(void) {
auto cfg = M5.config();
M5.begin(cfg);
M5.Display.setFont(&fonts::FreeMonoBold12pt7b);
Serial.begin(115200);
}
void loop(void) {
auto imu_update = M5.Imu.update();
if (imu_update) {
auto data = M5.Imu.getImuData();
// The data obtained by getImuData can be used as follows.
data.accel.x; // accel x-axis value.
data.accel.y; // accel y-axis value.
data.accel.z; // accel z-axis value.
data.accel.value; // accel 3values array [0]=x / [1]=y / [2]=z.
data.gyro.x; // gyro x-axis value.
data.gyro.y; // gyro y-axis value.
data.gyro.z; // gyro z-axis value.
data.gyro.value; // gyro 3values array [0]=x / [1]=y / [2]=z.
data.value; // all sensor 9values array [0~2]=accel / [3~5]=gyro / [6~8]=mag
Serial.printf("ax: %f ay: %f az: %f\r\n", data.accel.x, data.accel.y, data.accel.z);
Serial.printf("gx: %f gy: %f gz: %f\r\n", data.gyro.x, data.gyro.y, data.gyro.z);
M5.Display.setCursor(40, 120);
M5.Display.clear(); // Delay 100ms
M5.Display.printf("IMU:\r\n");
M5.Display.printf(" ax: %f\n ay: %f\n az: %f\r\n", data.accel.x, data.accel.y, data.accel.z);
M5.Display.printf(" gx: %f\n gy: %f\n gz: %f\r\n", data.gyro.x, data.gyro.y, data.gyro.z);
}
delay(300);
}After uploading successfully, you can view the IMU sensor acceleration and gyroscope data in the serial monitor and on the screen.
The StopWatch IMU section uses the IMU_Class from the M5Unified library. For more IMU-related APIs, refer to the following document: