Ok, related to MySensors 1.6 tehen, that explain why I never seen this !

Thanks !

I took a look at the sketch, I didn't know there was a presentation() method to implement to present the different sensor's ID; is this new ? when is it called? I guess after setup() ?

I am adventurous !

Were can I find the beta version of the sketch ?

Oh and BTW, which boxes are you using with your Sensebender ? I guess it's maybe the most difficult part of the entire project, finding the perfect box

Started to solder my 6 sensebender. I've noticed that if I set it to 1Mhz directly, the sensor cannot register itself on the gateway (but unfortunately I dont know why because there's no serial). Putting it at 8Mhz, being detected by the GW with an ID, and I can set it back to 1mhz. Weird.

Oooh so I guess that also explain why I have strange output on the serial using the default sketch ?

Well, I'll start without touching frequency and see how it behave in the next month. This is the sketch I use (not tested yet !). Sleeping all the time, awake but interrupt. When awake, send the Battery % if different from last mesure.

/**
 * The MySensors Arduino library handles the wireless radio link and protocol
 * between your home built sensors/actuators and HA controller of choice.
 * The sensors forms a self healing radio network with optional repeaters. Each
 * repeater and gateway builds a routing tables in EEPROM which keeps track of the
 * network topology allowing messages to be routed to nodes.
 *
 * Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
 * Copyright (C) 2013-2015 Sensnology AB
 * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
 *
 * Documentation: http://www.mysensors.org
 * Support Forum: http://forum.mysensors.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 *******************************
 *
 * REVISION HISTORY
 * Version 1.0 - Henrik Ekblad
 * 
 * DESCRIPTION
 * Default sensor sketch for Sensebender Micro module
 * Act as a temperature / humidity sensor by default.
 *
 * If A0 is held low while powering on, it will enter testmode, which verifies all on-board peripherals
 *  
 * Battery voltage is as battery percentage (Internal message), and optionally as a sensor value (See defines below)
 *
 */


#include <MySensor.h>
#include <Wire.h>
#include <SPI.h>
#include "utility/SPIFlash.h"
#include <EEPROM.h>  
#include <avr/power.h>


#define RELEASE "1.0"

// Child sensor ID's

#define DIGITAL_INPUT_SENSOR 3   // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)
#define INTERRUPT DIGITAL_INPUT_SENSOR-2 // Usually the interrupt = pin -2 (on uno/nano anyway)
#define CHILD_ID_DOOR 1   // Id of the sensor child


MySensor gw;

// Sensor messages
MyMessage msgDoor(CHILD_ID_DOOR, V_TRIPPED);

// Global settings
int measureCount = 0;
int sendBattery = 0;
boolean highfreq = true;

// Storage of old measurements
long lastBattery = -100;
boolean oldDoorValue;

/****************************************************
 *
 * Setup code 
 *
 ****************************************************/
void setup() {
  Serial.begin(115200);
  Serial.print(F("Sensebender Micro FW "));
  Serial.print(RELEASE);
  Serial.flush();
  
  gw.begin();

  Serial.flush();
  Serial.println(F(" - Online!"));
  gw.sendSketchInfo("Battery Door", RELEASE);

  // sets the motion sensor digital pin as input
  pinMode(DIGITAL_INPUT_SENSOR, INPUT);     
  // Activate internal pull-ups
  digitalWrite(DIGITAL_INPUT_SENSOR, HIGH);
  
   // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID_DOOR, S_DOOR);
}


/***********************************************
 *
 *  Main loop function
 *
 ***********************************************/
void loop() {
  gw.process();

  sendBattLevel(false); 
  door(false);
  
  gw.sleep(INTERRUPT, CHANGE, 0);
}

//  Check if digital input has changed and send in new value
void door(bool force) 
{
  // Short delay to allow buttons to properly settle
  sensor_node.sleep(5);
  
  bool tx = force;
  
  boolean tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH; 
  
  if (tripped != oldDoorValue) 
  {
    tx = true;
    oldDoorValue = tripped;
  }
  if (tx)
  {
     // Send in the new value
     gw.send(msgDoor.set(tripped ?  1 : 0));  // Send tripped value to gw 
  }
} 



/********************************************
 *
 * Sends battery information (battery percentage)
 *
 * Parameters
 * - force : Forces transmission of a value
 *
 *******************************************/
void sendBattLevel(bool force)
{
  if (force) lastBattery = -1;
  
  long vcc = readVcc();
  
  if (vcc != lastBattery) 
  {
    lastBattery = vcc;

    // Calculate percentage
    vcc = vcc - 1900; // subtract 1.9V from vcc, as this is the lowest voltage we will operate at
    long percent = vcc / 14.0;
    gw.sendBatteryLevel(percent);
  }
}

/*******************************************
 *
 * Internal battery ADC measuring 
 *
 *******************************************/
long readVcc() {
  // Read 1.1V reference against AVcc
  // set the reference to Vcc and the measurement to the internal 1.1V reference
  #if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
    ADMUX = _BV(REFS0) | _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
  #elif defined (__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
    ADMUX = _BV(MUX5) | _BV(MUX0);
  #elif defined (__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
    ADcdMUX = _BV(MUX3) | _BV(MUX2);
  #else
    ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
  #endif  
 
  delay(2); // Wait for Vref to settle
  ADCSRA |= _BV(ADSC); // Start conversion
  while (bit_is_set(ADCSRA,ADSC)); // measuring
 
  uint8_t low  = ADCL; // must read ADCL first - it then locks ADCH  
  uint8_t high = ADCH; // unlocks both
 
  long result = (high<<8) | low;
 
  result = 1125300L / result; // Calculate Vcc (in mV); 1125300 = 1.1*1023*1000
  return result; // Vcc in millivolts
}

BTW, what is the F() function ? instead of Serial.print("Sensebender Micro FW "); why using Serial.print(F("Sensebender Micro FW ")); ?

Thanks !

Hello,
I've just received my sensebender boards and start playing with it.

My first goal is to make a door sensor running on battery. I will not use the integrated temp/hum sensor for battery purpose, and use interrupt to have the sensor on sleep the majority of time.

Looking at the sketch given with temp/hum, I have one question;

on the loop function, we have

if ((measureCount == 5) && highfreq) 
  {
    clock_prescale_set(clock_div_8); // Switch to 1Mhz for the reminder of the sketch, save power.
    highfreq = false;
  } 

But I don't really understand this ; highfreq is initialized to true in the declaration, and never again. So, does this clock_prescale_set is call only once, meangin that the sensor will run at 1Mhz all the time ?
It is the 5 first mesure that are running at normal speed, and then the sensor goes into a "battery efficient" mode ?
Why waiting for 5 mesure to do so, and not doing it at startup ?

Thanks for your explanation !

Ordered 6 board too ! I'm glad to support MySensors project !

That's why I think i'm going to go with this senseboard.
But I want to be sure that some connectors (D3 ?) support interrupts ? The goal is to have the sensor always in sleep mode, and wake up on interrupts only.

Regards,

Well I do, but I think that using a Arduino Pro 3.3V will be less effecient, but maybe I'm wrong ?

I'm currently using temp/hum/motion sensors with Arduino Pro 5V, but they are not battery powered. Now I need to make very small sensor with battery, and I thought that maybe this sensebender board is my solution ?