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 :D

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 ?

@tbowmo
Well can't I use this board without using the temp/hum sensor ?

This board is quite small and allows to stack the radio module with minimum place. Also it works at 1Mhz, I guess it's a bit better than an Arduino Pro @ 3.3V ?

Hello,

one simple quick question, does this board can be used to create door sensors ? I do not need the temp/hum sensors, but I'm interested with the small footprint and the battery optimized board to make smallest door sensors (and some buttons).

regards,

I found where was the problem, I'm really a newbee... The motion sensor was plugged to the 3.3VCC, not 5V, doing this strange behaviour !

If you were meaning that I have to do

pinMode(MOTION_SENSOR_DIGITAL_PIN, INPUT_PULLUP);

instead of

pinMode(MOTION_SENSOR_DIGITAL_PIN, INPUT);

It changes nothing !

I'm sorry I'm a newbie with arduino so I don't understand what you want me to test ?

Hey !

I'm trying to use your code to do a Motion/temp/humidity sensor, but I dont know why the motion sensor is sending 0/1/0/1... if there is nothing moving ?!

Here is my code :

#include <SPI.h>
#include <MySensor.h>  
#include <DHT.h>  
#include <SimpleTimer.h>

#define CHILD_ID_HUM 0
#define CHILD_ID_TEMP 1
#define CHILD_ID_MOT 2
#define MOTION_SENSOR_DIGITAL_PIN 3
#define HUMIDITY_SENSOR_DIGITAL_PIN 4
//#define INTERRUPT MOTION_SENSOR_DIGITAL_PIN-2

unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)

MySensor gw;
DHT dht;
SimpleTimer timer;
float lastTemp;
float lastHum;
boolean lastTripped;

MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
MyMessage msgMot(CHILD_ID_MOT, V_TRIPPED);


void setup()  
{ 
  gw.begin();
  dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN); 

  // Send the Sketch Version Information to the Gateway
  gw.sendSketchInfo("Humidity/Motion", "1.0");

  pinMode(MOTION_SENSOR_DIGITAL_PIN, INPUT);
  // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID_HUM, S_HUM);
  gw.present(CHILD_ID_TEMP, S_TEMP);
  gw.present(CHILD_ID_MOT, S_MOTION);

  timer.setInterval(30000, getMeasure);
}

void loop()      
{  
  timer.run();

  boolean tripped = digitalRead(MOTION_SENSOR_DIGITAL_PIN) == HIGH;    
  if (tripped != lastTripped) 
  {
    lastTripped = tripped;
    Serial.print("M: ");
    Serial.println(tripped);
    gw.send(msgMot.set(tripped?"1":"0"));  // Send tripped value to gw
   }
}

void getMeasure() 
{
  delay(dht.getMinimumSamplingPeriod());

  float temperature = dht.getTemperature();
  if (isnan(temperature)) 
  {
      Serial.println("Failed reading temperature from DHT");
  } 
  else if (temperature != lastTemp) 
  {
    lastTemp = temperature;
    gw.send(msgTemp.set(temperature, 1));
    Serial.print("T: ");
    Serial.println(temperature);
  }
  
  float humidity = dht.getHumidity();
  if (isnan(humidity)) 
  {
      Serial.println("Failed reading humidity from DHT");
  } 
  else if (humidity != lastHum) 
  {
      lastHum = humidity;
      gw.send(msgHum.set(humidity, 1));
      Serial.print("H: ");
      Serial.println(humidity);
   }
}

Do you have any idea what could be causing that ?

Regards !

Hello,

I've read this thread with interest because I want to make my Motion/Temp sensor using Dallas.

Adapting the given code was quite easy (well I guess as I have not tested it for now :D ), I only have changed gw.wait with gw.sleep, because if I understand it correctly, gw.sleep put the sensor in sleep mode which is a bit better for battery :

#include <MySensor.h>  
#include <SPI.h>
#include <DallasTemperature.h>
#include <OneWire.h>

#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_S1 1   // Id of the sensor child


#define ONE_WIRE_BUS 4 // Pin where dallase sensor is connected 
#define CHILD_ID_T1 2 //CHILD ID for temp


OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature DallasSensors(&oneWire);
float lastTemperature ;
unsigned long SLEEP_TIME = 30000; // Sleep time between reports (in milliseconds)
unsigned long lastRefreshTime = 0;
boolean lastTripped = 0;

MySensor gw;
// Initialize motion message
MyMessage motionMsg(CHILD_ID_S1, V_TRIPPED);
MyMessage tempMsg(CHILD_ID_T1,V_TEMP);

void setup()  
{  
   // Startup OneWire Temp Sensors
    DallasSensors.begin();
    DallasSensors.setWaitForConversion(false);

  gw.begin();

  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Motion and Temperature Sensor", "1.0");

  pinMode(DIGITAL_INPUT_SENSOR, INPUT);      // sets the motion sensor digital pin as input
  // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID_S1, S_MOTION);
  gw.present(CHILD_ID_T1, S_TEMP);
  
}

void loop()     
{
	// Process incoming messages (like config from server)
	gw.process();
	
	// Read digital motion value
	boolean tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH; 

	if (lastTripped != tripped ) 
	{
		Serial.println("Tripped");
		gw.send(motionMsg.set(tripped?"1":"0")); // Send tripped value to gw 
		lastTripped=tripped;
	}

	boolean bNeedRefresh = (millis() - lastRefreshTime) > SLEEP_TIME;
	if (bNeedRefresh)
	{
		lastRefreshTime = millis();
		DallasSensors.requestTemperatures();
		
		gw.sleep(750);
		float tempC = DallasSensors.getTempCByIndex(1);
		float difference = lastTemperature - tempC;
		if (tempC != -127.00 && abs(difference) > 0.1)
		{
			// Send in the new temperature
			gw.send(tempMsg.set(tempC, 1));
			lastTemperature = tempC;
		}
	}
	else
	{
		gw.sleep(INTERRUPT,CHANGE, SLEEP_TIME);
	}
}

But I'm concerned about thoses particular lines :

lastRefreshTime = millis();
		DallasSensors.requestTemperatures();
		
		gw.sleep(750);
		float tempC = DallasSensors.getTempCByIndex(1);

Why do we need gw.sleep(750) ? My concern is, when the sensor tries to pull temperature, it could not trigger new motion state for at least 750ms ? This is a problem for me, as I want to use these sensor to trigger light when I come in the room, so I need it to be fast.

Thanks !

They are nice ! Where do you bought them ?

Regards,

Hello,

I'm curious to know how you all box your sensors and the serial gateway ?

Regards,

I know about the step-down yes, that's why I'm guessing that the VCC for the radio cannot be used for the sensors as they use 5V (using thoses )

I'm not sure I've understood the part about capacitors. Are you suggesting me to add capacitors for every sensors ? I have thoses, do they fit my needs ?

The pro-mini will be powered using this . I hope everything's fine !

regards,