Hi, I have the below code which I have stripped back to try and fault find so apologies for lots of rem's. I'm using I2C. Basically the dfrobot code uint8_t CMDID = asr.getCMDID(); seems to be the cause of the Nano crashing after about 10 secs of the loop. If I remove all the df CMDID code and switch code it loops no problem

Listening for CMDID, Switch CMDID, End of loop, Start of loop, DigitalRead, Listening for CMDID

I have tried watchdog and pragma fix but still crashes. Has anyone else had this problem or knows a fix please? Thanks.

#include "DFRobot_DF2301Q.h"

#include <Wire.h>

//#include <LiquidCrystal_I2C.h>

#include <Servo.h>

//LiquidCrystal_I2C lcd(0x27, 16, 2);

// SO WatchDog ================================

//#include <avr/wdt.h>

//int time = 0;

//wdt_enable(WDTO_2S);

// EO WatchDog ================================

// SO Define Servo Variables ==================================================//

Servo myservoA; // create servo object to control a servo

int posA = 90; // variable to store the servo position

int homePos = 90;

const int button1Pin = 6;

const int button2Pin = 7;

//const int LED_BUILTIN = 13;

int button1State = 0; // variable for reading the pushbutton status

int button2State = 0;

int x = 0;

int y = 0;

// EO Define Servo Variables ==================================================//

//I2C communication

DFRobot_DF2301Q_I2C asr;

int vol = 5;

void setup() {

Wire.begin();

Serial.begin(115200);

pinMode(LED_BUILTIN, OUTPUT);

pinMode(button1Pin, INPUT);

pinMode(button2Pin, INPUT);

myservoA.attach(5); //attaches the servo on pin 5

//wdt_disable();

//Wire.setClock(100000);

while (!Serial) {

; // wait for serial port to connect. Needed for native USB port only

}

delay(20);

Serial.println("Serial Ready");

Serial.println("Nano booting up!!!");

digitalWrite(LED_BUILTIN, HIGH);

posA = 80;

myservoA.write(posA);

Serial.println("Running SetUp");

Serial.print("Set servo at ");

Serial.println(posA);

delay(2000);

posA = 100;

myservoA.write(posA);

Serial.print ("Set servo at ");

Serial.println(posA);

delay(2000);

myservoA.write(homePos);

Serial.print("Setup complete servo at pos ");

Serial.println(homePos);

delay(1000);

// Init the sensor

Serial.println("Looking for DfRobot");

while (!(asr.begin())) {

Serial.println("Communication with device failed, please check connection");

digitalWrite(LED_BUILTIN, HIGH);

delay(3000);

}

digitalWrite(LED_BUILTIN, LOW);

Serial.println("Found DfRobot");

/**

* @brief Set voice volume

* @param voc - Volume value(1~7)

*/

asr.setVolume(vol);

/**

@brief Set mute mode

@param mode - Mute mode; set value 1: mute, 0: unmute

*/

//asr.setMuteMode(0);

/**

@brief Set wake-up duration

@param wakeTime - Wake-up duration (0-255)

*/

asr.setWakeTime(40);

/**

@brief Get wake-up duration

@return The currently-set wake-up period

*/

//uint8_t wakeTime = 0;

//wakeTime = asr.getWakeTime();

//Serial.print("wakeTime = ");

//Serial.println(wakeTime);

/**

@brief Play the corresponding reply audio according to the ID

@param CMDID - command word ID

*/

// asr.playByCMDID(5); // Command word ID

delay(2000);

Serial.println("Mercedes Ready! vr2");

}

// wake word = 2 custom words id 5 - 21

// command id's https://wiki.dfrobot.com/SKU_SEN0539-EN_Gravity_Voice_Recognition_Module_I2C_UART#target_9

void loop() {

digitalWrite(LED_BUILTIN, LOW);

delay(20);

Serial.println("Start of loop");

/**if(millis()/1000 > 15) {

Serial.println("Forced Reboot");

wdt_enable(WDTO_15MS);

}

*/

button1State = digitalRead(button1Pin); // read the state of the pushbutton

button2State = digitalRead(button2Pin);

Serial.println("DigitalRead");

/**

@brief Get the ID corresponding to the command word

@return Return the obtained command word ID, returning 0 means no valid ID is obtained

*/

Serial.println("Listening for CMDID");

/**

@brief Get the ID corresponding to the command word

@return Return the obtained command word ID, returning 0 means no valid ID is obtained

*/

uint8_t CMDID = asr.getCMDID();

Serial.println("Switch CMDID");

switch (CMDID) {

case 103: //If the command is “Turn on the light”

// digitalWrite(Led, HIGH); //Turn on the LED

Serial.println("received'Turn on the light',command flag'103'"); //Serial transmits "received"Turn on the light",command flag"103

break;

case 104: //If the command is “Turn off the light”

//digitalWrite(Led, LOW); //Turn off the LED

Serial.println("received'Turn off the light',command flag'104'"); //The serial transmits "received"Turn off the light",command flag"104""

break;

default:

if (CMDID != 0) {

Serial.print("CMDID = "); //Printing command ID

Serial.println(CMDID);

}

}

delay(300);

}