Posts made by niek

niek

@LastSamurai That is exactly what I did Ordered some ledstrips in China, and I want to use that with FastLed or some smilar lib.
So, I'm waiting to the strips when they are get delivered.

niek

Ha, I like soldering, but smd soldering is a step to far (I'm a programmer :))
But, I have search further and I looks like I didn't need a controller for an APA102 led strip, so I ordered some strips in China.
I will look if it is possible to control those with MySensors, and post some code here of course.

niek

Hi,

I want 3 RGB(W) led strips in my room, which I can control via Domoticz (and MySensors). I look for some led strips and I want a addressable led strip. I'm a beginner with MySensors, so creating a custom board is not an option. I also found this board: https://www.mysensors.org/hardware/rgbw-controller but, soldering the small parts is also not an option.

Is there an easy option to control an addressable RGB(W) strip with MySensors and Domoticz?

niek

Will this board works with an APA102 ledstrip? And, I'm new to custom boards, how can I simply order a couple of this boards?
EDIT: i'm too fast, found this link: http://dirtypcbs.com/store/designer/details/7078/867/mysensors-rgbw-controller-v1-3
so my second question is already be answered!

niek

Nobody? This arduino is useless on this way... :S

niek

Hi,
I have upload the temperature sketch to an Arduino Nano. I only edited the name of the node. The code will run as long I have the console from the Arduino software open.
When I close the console, the red led starts blinking and the code will no longer run.
I have another temperature node with the same code and that node is running without any problems.
Does anybody know what the problem is?

niek

Hi,

I'm new with mySensors and I'm using them with Domoticz.
I have running an DHT-22 sensor and that is working fine.

I'm now building a light + pressure sensor because I think that those sensors are perfect to combine. But, by default the BH1750 and MBP085 are using the same pins on the Arduino.

Is there a way to override the default pin?

My current code (it's says:Could not find a valid BMP085 sensor, check wiring!)
:

/**
* 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 - idefix
* 
* DESCRIPTION
* Arduino BH1750FVI Light sensor
* communicate using I2C Protocol
* this library enable 2 slave device addresses
* Main address  0x23
* secondary address 0x5C
* connect the sensor as follows :
*
*   VCC  >>> 5V
*   Gnd  >>> Gnd
*   ADDR >>> NC or GND  
*   SCL  >>> A5
*   SDA  >>> A4
* http://www.mysensors.org/build/light
*/

#include <SPI.h>
#include <MySensor.h>  
#include <BH1750.h>
#include <Wire.h> 
#include <Adafruit_BMP085.h>

#define CHILD_ID_LIGHT 0
#define CHILD_ID_BARO 1
unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)

const float ALTITUDE = 4;

BH1750 lightSensor;
MySensor gw;

// V_LIGHT_LEVEL should only be used for uncalibrated light level 0-100%.
// If your controller supports the new V_LEVEL variable, use this instead for
// transmitting LUX light level.
MyMessage msg(CHILD_ID_LIGHT, V_LIGHT_LEVEL);
// MyMessage msg(CHILD_ID_LIGHT, V_LEVEL);  
uint16_t lastlux;

const char *weather[] = { "stable", "sunny", "cloudy", "unstable", "thunderstorm", "unknown" };
enum FORECAST
{
 STABLE = 0,     // "Stable Weather Pattern"
 SUNNY = 1,      // "Slowly rising Good Weather", "Clear/Sunny "
 CLOUDY = 2,     // "Slowly falling L-Pressure ", "Cloudy/Rain "
 UNSTABLE = 3,   // "Quickly rising H-Press",     "Not Stable"
 THUNDERSTORM = 4, // "Quickly falling L-Press",    "Thunderstorm"
 UNKNOWN = 5     // "Unknown (More Time needed)
};
Adafruit_BMP085 bmp = Adafruit_BMP085();      // Digital Pressure Sensor 
float lastPressure = -1;
int lastForecast = -1;
const int LAST_SAMPLES_COUNT = 5;
float lastPressureSamples[LAST_SAMPLES_COUNT];

// this CONVERSION_FACTOR is used to convert from Pa to kPa in forecast algorithm
// get kPa/h be dividing hPa by 10 
#define CONVERSION_FACTOR (1.0/10.0)

int minuteCount = 0;
bool firstRound = true;
// average value is used in forecast algorithm.
float pressureAvg;
// average after 2 hours is used as reference value for the next iteration.
float pressureAvg2;

float dP_dt;
boolean metric;
MyMessage pressureMsg(CHILD_ID_BARO, V_PRESSURE);
MyMessage forecastMsg(CHILD_ID_BARO, V_FORECAST);

void setup()  
{ 
 gw.begin();

 // Send the sketch version information to the gateway and Controller
 gw.sendSketchInfo("Light + Pressure", "1.0");
 if (!bmp.begin()) 
 {
   Serial.println("Could not find a valid BMP085 sensor, check wiring!");
   while (1) {}
 }

 // Register all sensors to gateway (they will be created as child devices)
 gw.present(CHILD_ID_LIGHT, S_LIGHT_LEVEL);
 gw.present(CHILD_ID_BARO, S_BARO);

 metric = gw.getConfig().isMetric;
 
 lightSensor.begin();
}

void loop()      
{     
 uint16_t lux = lightSensor.readLightLevel();// Get Lux value
 Serial.println(lux);
 if (lux != lastlux) {
     gw.send(msg.set(lux));
     lastlux = lux;
 }

 float pressure = bmp.readSealevelPressure(ALTITUDE) / 100.0;

 
 int forecast = sample(pressure);

 Serial.print("Pressure = ");
 Serial.print(pressure);
 Serial.println(" hPa");
 Serial.print("Forecast = ");
 Serial.println(weather[forecast]);



 if (pressure != lastPressure) 
 {
   gw.send(pressureMsg.set(pressure, 0));
   lastPressure = pressure;
 }

 if (forecast != lastForecast)
 {
   gw.send(forecastMsg.set(weather[forecast]));
   lastForecast = forecast;
 }
 
 gw.sleep(SLEEP_TIME);
}

float getLastPressureSamplesAverage()
{
 float lastPressureSamplesAverage = 0;
 for (int i = 0; i < LAST_SAMPLES_COUNT; i++)
 {
   lastPressureSamplesAverage += lastPressureSamples[i];
 }
 lastPressureSamplesAverage /= LAST_SAMPLES_COUNT;

 return lastPressureSamplesAverage;
}



// Algorithm found here
// http://www.freescale.com/files/sensors/doc/app_note/AN3914.pdf
// Pressure in hPa -->  forecast done by calculating kPa/h
int sample(float pressure)
{
 // Calculate the average of the last n minutes.
 int index = minuteCount % LAST_SAMPLES_COUNT;
 lastPressureSamples[index] = pressure;

 minuteCount++;
 if (minuteCount > 185)
 {
   minuteCount = 6;
 }

 if (minuteCount == 5)
 {
   pressureAvg = getLastPressureSamplesAverage();
 }
 else if (minuteCount == 35)
 {
   float lastPressureAvg = getLastPressureSamplesAverage();
   float change = (lastPressureAvg - pressureAvg) * CONVERSION_FACTOR;
   if (firstRound) // first time initial 3 hour
   {
     dP_dt = change * 2; // note this is for t = 0.5hour
   }
   else
   {
     dP_dt = change / 1.5; // divide by 1.5 as this is the difference in time from 0 value.
   }
 }
 else if (minuteCount == 65)
 {
   float lastPressureAvg = getLastPressureSamplesAverage();
   float change = (lastPressureAvg - pressureAvg) * CONVERSION_FACTOR;
   if (firstRound) //first time initial 3 hour
   {
     dP_dt = change; //note this is for t = 1 hour
   }
   else
   {
     dP_dt = change / 2; //divide by 2 as this is the difference in time from 0 value
   }
 }
 else if (minuteCount == 95)
 {
   float lastPressureAvg = getLastPressureSamplesAverage();
   float change = (lastPressureAvg - pressureAvg) * CONVERSION_FACTOR;
   if (firstRound) // first time initial 3 hour
   {
     dP_dt = change / 1.5; // note this is for t = 1.5 hour
   }
   else
   {
     dP_dt = change / 2.5; // divide by 2.5 as this is the difference in time from 0 value
   }
 }
 else if (minuteCount == 125)
 {
   float lastPressureAvg = getLastPressureSamplesAverage();
   pressureAvg2 = lastPressureAvg; // store for later use.
   float change = (lastPressureAvg - pressureAvg) * CONVERSION_FACTOR;
   if (firstRound) // first time initial 3 hour
   {
     dP_dt = change / 2; // note this is for t = 2 hour
   }
   else
   {
     dP_dt = change / 3; // divide by 3 as this is the difference in time from 0 value
   }
 }
 else if (minuteCount == 155)
 {
   float lastPressureAvg = getLastPressureSamplesAverage();
   float change = (lastPressureAvg - pressureAvg) * CONVERSION_FACTOR;
   if (firstRound) // first time initial 3 hour
   {
     dP_dt = change / 2.5; // note this is for t = 2.5 hour
   }
   else
   {
     dP_dt = change / 3.5; // divide by 3.5 as this is the difference in time from 0 value
   }
 }
 else if (minuteCount == 185)
 {
   float lastPressureAvg = getLastPressureSamplesAverage();
   float change = (lastPressureAvg - pressureAvg) * CONVERSION_FACTOR;
   if (firstRound) // first time initial 3 hour
   {
     dP_dt = change / 3; // note this is for t = 3 hour
   }
   else
   {
     dP_dt = change / 4; // divide by 4 as this is the difference in time from 0 value
   }
   pressureAvg = pressureAvg2; // Equating the pressure at 0 to the pressure at 2 hour after 3 hours have past.
   firstRound = false; // flag to let you know that this is on the past 3 hour mark. Initialized to 0 outside main loop.
 }

 int forecast = UNKNOWN;
 if (minuteCount < 35 && firstRound) //if time is less than 35 min on the first 3 hour interval.
 {
   forecast = UNKNOWN;
 }
 else if (dP_dt < (-0.25))
 {
   forecast = THUNDERSTORM;
 }
 else if (dP_dt > 0.25)
 {
   forecast = UNSTABLE;
 }
 else if ((dP_dt > (-0.25)) && (dP_dt < (-0.05)))
 {
   forecast = CLOUDY;
 }
 else if ((dP_dt > 0.05) && (dP_dt < 0.25))
 {
   forecast = SUNNY;
 }
 else if ((dP_dt >(-0.05)) && (dP_dt < 0.05))
 {
   forecast = STABLE;
 }
 else
 {
   forecast = UNKNOWN;
 }

 // uncomment when debugging
 //Serial.print(F("Forecast at minute "));
 //Serial.print(minuteCount);
 //Serial.print(F(" dP/dt = "));
 //Serial.print(dP_dt);
 //Serial.print(F("kPa/h --> "));
 //Serial.println(weather[forecast]);

 return forecast;
}

Edit: I'm not using the temperature function and combined both sketches from this site.