@yveaux said in Can we increase the number of nodes from 254 to 1024 or more?:

You would need to rework the MySensors stack and break the protocol in doing so.

May be it could be implemented in a new version of mysensors?

@yveaux said in Can we increase the number of nodes from 254 to 1024 or more?:

If you really need more then 254 nodes I would suggest to break it up in separate networks, each with its own gateway.

Sound good for me. How can I make it if i am using RFM95 LoRa radio?
I have not found any mysensors instruction which could resolve this.
Do you have any instruction for this solution?

Hi,
I have tried last code, and it works - the watchdog reboot MC. As expected.

@mfalkvidd Why you think delay() should reset the watchdog?

Hello,
Short question. Can we increase the number of nodes from 254 to 1024 or more?

If I understand correctly, this can be done by changing the data type for nodeid. Or is it more difficult?

Sorry for my English.

@mfalkvidd Thx for you answer.
If I understand you right MySensor has implicit call wdt_reset()?
And in this case this new code will reboot.

#include <Arduino.h>
#include <avr/wdt.h>
  
// RFM95
  #define MY_RADIO_RFM95
  //#define MY_DEBUG_VERBOSE_RFM95
  #define MY_RFM95_FREQUENCY (RFM95_868MHZ)
  #define MY_RFM95_MODEM_CONFIGRUATION RFM95_BW125CR45SF128

  #define MY_NODE_ID 10
  #define MY_PARENT_NODE_ID 0
  #define MY_PARENT_NODE_IS_STATIC

#include <MySensors.h>

#define STATUS_LED_PIN        A2

void setup() {
  wdt_disable();
  Serial.begin(9600);
  Serial.println("Setup..");
  pinMode(STATUS_LED_PIN, OUTPUT);
  digitalWrite(STATUS_LED_PIN, 0);
  
  Serial.println("Wait 5 sec..");
  delay(5000);
  wdt_enable (WDTO_8S);
  Serial.println("Watchdog enabled.");
}

int timer = 0;

void loop(){
  if(!(millis()%1000)){
    timer++;
    Serial.println(timer);
    digitalWrite(STATUS_LED_PIN, digitalRead(STATUS_LED_PIN)==1?0:1); delay(1);
  }
  delay(20000);
  //wdt_reset();
}

I will try it later

Hello,

I faced with the same issue like https://forum.mysensors.org/topic/9946/watchdog-not-watchdogging/1
MySensor ver 2.3.1
Optiboot ver 8.0
atmega328, 8MHz
I have tested two codes on the one board and the result is bellow.
This test code works well. Watchdog is working and Atmega is rebooting.

#include <Arduino.h>
#include <avr/wdt.h>
  
#define STATUS_LED_PIN        A2

void setup() {
  wdt_disable();
  Serial.begin(9600);
  Serial.println("Setup..");
  pinMode(STATUS_LED_PIN, OUTPUT);
  digitalWrite(STATUS_LED_PIN, 0);
  
  Serial.println("Wait 5 sec..");
  delay(5000);
  wdt_enable (WDTO_8S);
  Serial.println("Watchdog enabled.");
}

int timer = 0;

void loop(){
  if(!(millis()%1000)){
    timer++;
    Serial.println(timer);
    digitalWrite(STATUS_LED_PIN, digitalRead(STATUS_LED_PIN)==1?0:1); delay(1);
  }
  //wdt_reset();
}

But this code is not working. Watchdog is not working.

#include <Arduino.h>
#include <avr/wdt.h>
  
// RFM95
  #define MY_RADIO_RFM95
  //#define MY_DEBUG_VERBOSE_RFM95
  #define MY_RFM95_FREQUENCY (RFM95_868MHZ)
  #define MY_RFM95_MODEM_CONFIGRUATION RFM95_BW125CR45SF128

  #define MY_NODE_ID 10
  #define MY_PARENT_NODE_ID 0
  #define MY_PARENT_NODE_IS_STATIC

#include <MySensors.h>

#define STATUS_LED_PIN        A2

void setup() {
  wdt_disable();
  Serial.begin(9600);
  Serial.println("Setup..");
  pinMode(STATUS_LED_PIN, OUTPUT);
  digitalWrite(STATUS_LED_PIN, 0);
  
  Serial.println("Wait 5 sec..");
  delay(5000);
  wdt_enable (WDTO_8S);
  Serial.println("Watchdog enabled.");
}

int timer = 0;

void loop(){
  if(!(millis()%1000)){
    timer++;
    Serial.println(timer);
    digitalWrite(STATUS_LED_PIN, digitalRead(STATUS_LED_PIN)==1?0:1); delay(1);
  }
  //wdt_reset();
}

What I am doing wrong?