@Reza said:
this module ( ir transmitter ) is weak in transmit . for more than 2 or 3 meter distance dont work . also for less than 1 meter we must direct connection exactly.
i think this is related to power or noise or problem of module ?!
can you guidance me ?
I'm thinking of building this but am concerned about limited range. I'd like it to work 10ft/3m. Can someone confirm that this does not work at these distances? If so, is there a way to increase the range?
@tlustoch said:
Any progress? I like to build simple low-power temperature sensor based on attiny85 but cannot compile mysensors sketch if attiny85 set as a processor
I've switched over to the ESP8266 runing ESPEasy firmware. Very cheap and very easy to use.
@sundberg84 said:
@chuckconnors - BMP180 or Bmp280 for example.
Those appear to be atmospheric pressure sensors. Looking for humidity sensors other than the DHT11/DHT22.
@sundberg84 said:
@AWI probably because its mentioned in the build page? But i agree - I now know as well there is better out there.
Can you tell me what better sensors are out there? These DHT11's I have vary wildly with regards to relative humidity.
I just built two new Humidity/Temp/Motion sensors. I'm using OpenHAB 1.3.8 with Mysensors 1.5.1
I can see that things are working okay in Arduino IDE:
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
sensor started, id=255, parent=0, distance=1
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
0
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
T: 80.60
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
H: 40.00
Netcat to my ethernet gateway shows this:
root@debian# nc 192.168.0.99 5003
255;255;3;0;3;
255;255;3;0;3;
255;255;3;0;3;
255;255;3;0;3;
255;255;3;0;3;
255;255;3;0;3;
255;255;3;0;3;
255;255;3;0;3;
OpenHAB is receiving information from my other Mysensors nodes and those values update. I am not seeing anything in the logs about the new sensors not being assigned. It's like it's not seeing them.
Can anyone help?
@tbowmo said:
if you look at the "examples" repository, it both examples folder, and libraries that should work with the enclosed examples. Copy the library, that you want to use, to Arduino/libraries/... and the example to Arduino/... and try to compile them.
HOLY SMOKES! I totally missed the libraries directory. Thank you and sorry for the troubles.
@AWI said:
@chuckconnors this is what I found as a working example on my system. I still don't understand why the DHT keeps being so popular. There are much better temp/hum sensors around..... But anyway, this one should work.
Installation ------------ Place the [DHT][download] library folder in your `<arduinosketchfolder>/libraries/` folder. You may need to create the `libraries` subfolder if its your first library. Restart the Arduino IDE. [download]: https://github.com/markruys/arduino-DHT/archive/master.zip "Download DHT library" [example]: https://github.com/markruys/arduino-DHT/blob/master/examples/DHT_Test/DHT_Test.pde "Show DHT example" [header]: https://github.com/markruys/arduino-DHT/blob/master/DHT.h "Show header file"```
Thanks for the reply. I'm pretty sure that's one of the ones I tried. I ended up finding an old install I had and copied the library from there and it's working now.
Can someone please look at their libraries and tell me which one I need to use? Apparently installing Arduino IDE does not install this library by default and all the ones I've tried have failed. I don't see any documentation on which one to use.
I've got a handful of sensors built but I can't program them until I get this resolved. I really appreciate your time and help. Thanks!
I'm trying to compile the Humidity sketch 2.0 and am getting an error. Here's the sketch I'm using:
/**
* 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
* This sketch provides an example how to implement a humidity/temperature
* sensor using DHT11/DHT-22
* http://www.mysensors.org/build/humidity
*/
// Enable debug prints
//#define MY_DEBUG
// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69
#include <SPI.h>
#include <MySensors.h>
#include <DHT.h>
#define CHILD_ID_HUM 0
#define CHILD_ID_TEMP 1
#define HUMIDITY_SENSOR_DIGITAL_PIN 3
unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)
DHT dht;
float lastTemp;
float lastHum;
boolean metric = true;
MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
void setup()
{
dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN);
metric = getConfig().isMetric;
}
void presentation()
{
// Send the Sketch Version Information to the Gateway
sendSketchInfo("Humidity", "1.0");
// Register all sensors to gw (they will be created as child devices)
present(CHILD_ID_HUM, S_HUM);
present(CHILD_ID_TEMP, S_TEMP);
}
void loop()
{
delay(dht.getMinimumSamplingPeriod());
// Fetch temperatures from DHT sensor
float temperature = dht.getTemperature();
if (isnan(temperature)) {
Serial.println("Failed reading temperature from DHT");
} else if (temperature != lastTemp) {
lastTemp = temperature;
if (!metric) {
temperature = dht.toFahrenheit(temperature);
}
send(msgTemp.set(temperature, 1));
#ifdef MY_DEBUG
Serial.print("T: ");
Serial.println(temperature);
#endif
}
// Fetch humidity from DHT sensor
float humidity = dht.getHumidity();
if (isnan(humidity)) {
Serial.println("Failed reading humidity from DHT");
} else if (humidity != lastHum) {
lastHum = humidity;
send(msgHum.set(humidity, 1));
#ifdef MY_DEBUG
Serial.print("H: ");
Serial.println(humidity);
#endif
}
sleep(SLEEP_TIME); //sleep a bit
}
The error I'm getting is this:
Arduino: 1.6.6 (Windows 7), Board: "Arduino Pro or Pro Mini, ATmega328 (3.3V, 8 MHz)"
C:\Users\User\Documents\Arduino-new\sketch_jul17e\sketch_jul17e.ino:39:19: fatal error: DHT.h: No such file or directory
#include <DHT.h>
^
compilation terminated.
exit status 1
Error compiling.
I noticed a case sensitive issue so I changed DHT.h to dht.h and I get a bit further but then hit an error on line:
DHT dht;
I changed that to dht dht; and get a bit further still:
Arduino: 1.6.6 (Windows 7), Board: "Arduino Pro or Pro Mini, ATmega328 (3.3V, 8 MHz)"
C:\Users\User\Documents\Arduino-new\sketch_jul17e\sketch_jul17e.ino: In function 'void setup()':
sketch_jul17e:55: error: 'class dht' has no member named 'setup'
dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN);
^
C:\Users\User\Documents\Arduino-new\sketch_jul17e\sketch_jul17e.ino: In function 'void loop()':
sketch_jul17e:72: error: 'class dht' has no member named 'getMinimumSamplingPeriod'
delay(dht.getMinimumSamplingPeriod());
^
sketch_jul17e:75: error: 'class dht' has no member named 'getTemperature'
float temperature = dht.getTemperature();
^
sketch_jul17e:81: error: 'class dht' has no member named 'toFahrenheit'
temperature = dht.toFahrenheit(temperature);
^
sketch_jul17e:91: error: 'class dht' has no member named 'getHumidity'
float humidity = dht.getHumidity();
^
exit status 1
'class dht' has no member named 'setup'
As you've probably guessed, I'm just trying things to see if I can get it to work. I'm guessing it's a library thing and could use some guidance as to what library I should be using. Thanks!
@tbowmo Sorry. I was unclear. I don't mind using the Arduino IDE on my windows machine, but I don't know how to install the correct libraries to use the legacy code. Either that or is there a temp/humidity example sketch for 2.0? I can't find one in the code examples and I don't know what needs to be modified from the older version to make it work with 2.0. Just changing the include name is not enough.