ESP32 Forum

Posted: **Tue Jun 13, 2023 8:27 am**

The error i have :
" Compilation error: 'I2C_MODE' was not declared in this scope" :
/*****************************************************************************/
// Pedometer.ino
// Hardware: Grove - 6-Axis Accelerometer&Gyroscope
// Arduino IDE: Arduino-1.65
// Author: Lambor
// Date: Nov,2015
// Version: v1.0
//
// Modified by:
// Data:
// Description:
//
// by www.seeedstudio.com
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
//
/*******************************************************************************/

The code i use :

Code: [Select all] [Expand/Collapse]

#include "LSM6DS3.h"
#include "Wire.h"
 
#define CLEAR_STEP      true
#define NOT_CLEAR_STEP  false
 
//Create a instance of class LSM6DS3
LSM6DS3Class pedometer(1, 0x6A);    //I2C device address 0x6A
 
void setup() {
    Serial.begin(9600);
    while (!Serial);
    if (pedometer.begin() != 0) {
        Serial.println("Device error");
    } else {
        Serial.println("Device OK!");
    }
 
    //Configure LSM6DS3 as pedometer
    if (0 != config_pedometer(NOT_CLEAR_STEP)) {
        Serial.println("Configure pedometer fail!");
    }
    Serial.println("Success to Configure pedometer!");
}
 
void loop() {
    uint8_t dataByte = 0;
    uint16_t stepCount = 0;
 
    pedometer.readRegister(&dataByte, LSM6DS3_ACC_GYRO_STEP_COUNTER_H);
    stepCount = (dataByte << 8) & 0xFFFF;
 
    pedometer.readRegister(&dataByte, LSM6DS3_ACC_GYRO_STEP_COUNTER_L);
    stepCount |=  dataByte;
 
    Serial.print("Step: ");
    Serial.println(stepCount);
 
    delay(500);
}
 
//Setup pedometer mode
int config_pedometer(bool clearStep) {
    uint8_t errorAccumulator = 0;
    uint8_t dataToWrite = 0;  //Temporary variable
 
    //Setup the accelerometer******************************
    dataToWrite = 0;
 
    //  dataToWrite |= LSM6DS3_ACC_GYRO_BW_XL_200Hz;
    dataToWrite |= LSM6DS3_ACC_GYRO_FS_XL_2g;
    dataToWrite |= LSM6DS3_ACC_GYRO_ODR_XL_26Hz;
 
 
    // Step 1: Configure ODR-26Hz and FS-2g
    errorAccumulator += pedometer.writeRegister(LSM6DS3_ACC_GYRO_CTRL1_XL, dataToWrite);
 
    // Step 2: Set bit Zen_G, Yen_G, Xen_G, FUNC_EN, PEDO_RST_STEP(1 or 0)
    if (clearStep) {
        errorAccumulator += pedometer.writeRegister(LSM6DS3_ACC_GYRO_CTRL10_C, 0x3E);
    } else {
        errorAccumulator += pedometer.writeRegister(LSM6DS3_ACC_GYRO_CTRL10_C, 0x3C);
    }
 
    // Step 3:  Enable pedometer algorithm
    errorAccumulator += pedometer.writeRegister(LSM6DS3_ACC_GYRO_TAP_CFG1, 0x40);
 
    //Step 4:   Step Detector interrupt driven to INT1 pin, set bit INT1_FIFO_OVR
    errorAccumulator += pedometer.writeRegister(LSM6DS3_ACC_GYRO_INT1_CTRL, 0x10);
 
    return errorAccumulator;
}

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