qmi8658_no_motion.ino File Reference

@license MIT License More...

#include <stdarg.h>
#include <ImuDrv.hpp>
#include "DevicesPins.h"

Include dependency graph for qmi8658_no_motion.ino:

Go to the source code of this file.

Macros
#define	USE_I2C_INTERFACE
#define	IMU_SDA   17
#define	IMU_SCL   18
#define	IMU_IRQ   33

Functions
void	setupPower ()
void	setup ()
void	loop ()

Variables
SensorQMI8658	imu
volatile bool	irqTriggered = false
constexpr float	kAccelOdrHz = 224.0f
constexpr float	kAnyThresholdMg = 62.5f
constexpr uint8_t	kAnyWindow = 3
constexpr float	kNoThresholdMg = 15.625f
constexpr uint8_t	kNoWindow = 30
constexpr uint32_t	kPollIntervalMs = 50

Detailed Description

@license MIT License

Copyright (c) 2026 lewis he

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Author

Lewis He (lewis.nosp@m.he@o.nosp@m.utloo.nosp@m.k.co.nosp@m.m)

Date

2026-04-15

NoMotion example using SensorQMI8658.

This example demonstrates how to:

• Configure no-motion detection
• Set motion detection thresholds and time window
• Handle no-motion detection callbacks

@important NoMotion Notes:

• No-motion triggers when acceleration stays below threshold for set time.
• The detection threshold and time window can be tuned for sensitivity.
• Uses hardware interrupt callback for low-power operation.

@usage Connect the QMI8658 sensor via I2C or SPI and upload this sketch. Open the Serial Monitor to see no-motion detection events.

Definition in file qmi8658_no_motion.ino.

Macro Definition Documentation

IMU_IRQ

#define IMU_IRQ   33

Definition at line 80 of file qmi8658_no_motion.ino.

IMU_SCL

#define IMU_SCL   18

Definition at line 75 of file qmi8658_no_motion.ino.

IMU_SDA

#define IMU_SDA   17

Definition at line 72 of file qmi8658_no_motion.ino.

USE_I2C_INTERFACE

#define USE_I2C_INTERFACE

Definition at line 54 of file qmi8658_no_motion.ino.

Function Documentation

loop()

void loop

(

)

Definition at line 186 of file qmi8658_no_motion.ino.

References imu, irqTriggered, kPollIntervalMs, lastPollMs, and SensorQMI8658::update().

setup()

void setup

(

)

Definition at line 129 of file qmi8658_no_motion.ino.

References SensorQMI8658::ANY_MOTION, ComplexDeviceWithHal::begin(), SensorQMI8658::configAccel(), SensorQMI8658::configMotionDetect(), SensorQMI8658::enableAccel(), SensorQMI8658::enableMotionDetect(), FS_8G, imu, IMU_CS, IMU_IRQ, IMU_SCL, IMU_SDA, irqTriggered, kAccelOdrHz, kAnyThresholdMg, kAnyWindow, kNoThresholdMg, kNoWindow, SensorQMI8658::NO_MOTION, SensorQMI8658::setNoMotionCallback(), SensorQMI8658::setPins(), setupPower(), SPI_MISO, SPI_MOSI, and SPI_SCK.

setupPower()

void setupPower

(

)

Definition at line 97 of file qmi8658_no_motion.ino.

Referenced by setup().

Variable Documentation

imu

SensorQMI8658 imu

Definition at line 112 of file qmi8658_no_motion.ino.

Referenced by loop(), and setup().

irqTriggered

volatile bool irqTriggered = false

Definition at line 113 of file qmi8658_no_motion.ino.

Referenced by loop(), and setup().

kAccelOdrHz

constexpr float kAccelOdrHz = 224.0f

constexpr

Definition at line 115 of file qmi8658_no_motion.ino.

Referenced by setup().

kAnyThresholdMg

constexpr float kAnyThresholdMg = 62.5f

constexpr

Definition at line 119 of file qmi8658_no_motion.ino.

Referenced by setup().

kAnyWindow

constexpr uint8_t kAnyWindow = 3

constexpr

Definition at line 120 of file qmi8658_no_motion.ino.

Referenced by setup().

kNoThresholdMg

constexpr float kNoThresholdMg = 15.625f

constexpr

Definition at line 124 of file qmi8658_no_motion.ino.

Referenced by setup().

kNoWindow

constexpr uint8_t kNoWindow = 30

constexpr

Definition at line 125 of file qmi8658_no_motion.ino.

Referenced by setup().

kPollIntervalMs

constexpr uint32_t kPollIntervalMs = 50

constexpr

Definition at line 127 of file qmi8658_no_motion.ino.

Referenced by loop().