Posts made by Konrad Walsh

@alexsh1 Thank you

I am sorry.. I should have been more clear...
When you say PCB.. Is that a fully assembled product with all the mentioned sensors? Or is it a board and you add sensors to it..

Please excuse my ignorance

Phenomenal!

I have a stupid question.. clicking buy on the page.. what exactly does that buy you>?

i am "semi" abandoned it.. I couldn't get it work at all... but I cant say I fully grasp the syntax yet. Hopefully @HEK gets the notion...

i am "semi" abandoned it.. I couldn't get it work at all...

@korttoma Hey

Just back on track from today.. so will getting looking to this again

@korttoma Hey

Bear with me.. I hope to complete this over the weekend.. work got in the way.. But the goal is to achieve what you requested... I just need to stabilize things first

@Nuubi LOL.. its a secret!!!

and I will share my carefully guarded secret... Air quality sensor!! or in other words.. smoke and gas detector...

@epierre OK.. I wil lget this set up functioning first as a stanadalone device. I have the sketch completed now.. Just finishing off the vera files.. Then I will look at improving things

@BulldogLowell LOL .. maybe dont depend on my skills..!!

@hek & @BulldogLowell

Thanks - I will change to that and update you

The ultimate goal here is to make a 5 in 1 sensor.. So what I have already.. this will finish that off

At the challenge from @HEK and realising we have no S_AIR_QUALITY files.. I have set out to create them..

I am stuck with finalising the .ino sketch. I want to achieve this in one device with three pieces of data. .Its early days on development but I could do with help through the last parts..

I have attached my files as they are. In the .ino sketch the problem is with my gw.send(msgxxxx) parts.

AirQualitySensor.ino
https://codebender.cc/sketch:65086

S_AirQuality1.xml
D_AirQuality1.xml
D_AirQuality1.json

@Opus40 Great!

I am currently finalising a 5 in 1 sensor... just testing and so far its working fantastic

Hey

From what I just read it shouldnt matter.. you I would double check you wiring of the DHT11. Your output should be on PIN 4.. Also, have you placed the resistor on the DHT1`1

ok.. mine enters AT mode.. and I can get it to send and receive data.. I may as well keep plugging at it so

I have given up.. I cant get anywhere with this but I think its cause I bought hc-06.. Are you closer?

@hek
I have to wait for you to figure this one out... I have tried many methods but not making progress at all...

Your code does work by the way.. It sends and receives the data without issue.. but getting it all repackaged for a MySensors plugin isn't happening for me..

I have taken the binary switch recipe and I am using that so that it will turn on on/off based on the BT id it sees ..

I might start a fresh tonight.. Ill post any updates if I make progress on it..

@NotYetRated On one side I agree as this is what I have done for the passed few years
The problem is, this is unreliable..
but this along with that will make a more robust system..

See imagine.. I have one at each door...

I know when I am in the sitting vs the kitchen vs the bedroom..

now my squeezelite music system follows me.. the lights follow me... and more..- EG - click vol up on my phone adjusts the volume in that room alone....

ah. that would explain why I cant get the module to return is device info

@hek
Thanks - Sorry to hear you killed it.. Its why I alway buy two of everything.. one to kill/learn and one to use

I have the HC-06
I noticed you are using the KEY connection... I didn't connect that at all... I will give your code a whirl

@hek
Did you get anywhere with this? I am trying in vain.. the issue I see is that the BT module and the RF module are both serial outputs/inputs..
struggling to get off the ground on this

No its not affected as the temp sensor is on the outside of the case along with the motion sensor

@Mrlynx
I would be interested in buying a few of these off you..

@chilump
Yes of course... I'll update the original post shortly..

EDIT: UPDATED

no. usb charger powered. No idea where to start with battery powering this stuff

I am wanted to share my 3-in-1 sensor in case its of use to anyone
Its really just a combination of what's already available

I used the following hardware:

Arduino Nano LINK - Gave me both 3.3v and 5v output without having to mess with extra hardware(steppers)
1 x Motion Sensor LINK
1 x DHT22 LINK

Connections is as all other guides except:
Motion Sensor digital to Pin D3
and the DHT to Pin D4

Here is my code

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

#define CHILD_ID_HUM 0
#define CHILD_ID_TEMP 1
#define CHILD_ID_MOT 2   // Id of the sensor child
#define HUMIDITY_SENSOR_DIGITAL_PIN 4

#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)


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

MySensor gw;
DHT dht;
float lastTemp;
float lastHum;
boolean metric = true; 
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(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_HUM, S_HUM);
  gw.present(CHILD_ID_TEMP, S_TEMP);
  gw.present(CHILD_ID_MOT, S_MOTION);
   
  metric = gw.getConfig().isMetric;
}

void loop()      

{  
  // Read digital motion value
  boolean tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH; 
        
  Serial.println(tripped);
  gw.send(msgMot.set(tripped?"1":"0"));  // Send tripped value to gw 
  
  delay(dht.getMinimumSamplingPeriod());

  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);
    }
    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);
  }

  
 
  // Sleep until interrupt comes in on motion sensor. Send update every two minute. 
  gw.sleep(INTERRUPT,CHANGE, SLEEP_TIME);
}

If anyone wants more info please ask.. I will put up pictures or diagrams if needed

@hek
Thanks

@hek

Cool.. i'll race you!!!
However, I think you might win...

PS - How do I do code blocks?

Has anyone done a proximity sensor using bluetooth. I have ordered the parts and I am considering this code here and adapting it to something I can use in Vera.. but I really have no idea what I am doing.. I only ordered the parts yesterday so can't really kick this off till next week.

Just thought i'd ask if anyone else accomplished this already..

Goal:

Detect my phone
Tell Vera I am at home.

I guess my initial idea is to have it find the phone and set some soft of binary switch in vera to say on/off home/away

This is not my code... just what I am starting with...

#include
// The ID's I found during the set up,
// change these value's to match your Bluetooth Devices
char cell[] = "E4EC1064DAE4,5A0204";
char laptop[] = "2C8158B16919,6E010C";
unsigned long lastTime;
unsigned long interval = 10000;
void setup()
{
    Serial.begin(115200);  // Begin the serial monitor at 9600bps
    Serial1.begin(115200);
    Serial1.println("---"); // make sure the device is not in command mode
    Serial.println("Started....");
}

void loop()
{
    // Get current millis();
    unsigned long currentTime = millis();
    // Check if its already time for our process
    if((currentTime - lastTime) > interval) {
        lastTime = currentTime;
        // Enter command mode
        Serial1.print("$$$");
                //Wait a bit for the module to respond
        delay(200);
                // Start the inquiry scan
        Serial1.println("IN,2");
        delay(5000);
        int h = Serial1.available();
        if(h >= 42) { // we know there is a bluetooth device
            char *id = readSerial(h);
            char *str;
            while((str = strtok_r(id, "\n", &id)) != NULL) {
                if(strncmp(str, cell,19) == 0) {
                    Serial.print("Found Fritz cellphone with id: ");
                    Serial.println(str);
                } else if(strncmp(str,laptop,19) == 0) {
                    Serial.print("Found Fritz laptop with id: ");
                    Serial.println(str);
                }
            }
        } else if(h <= 21) { // we know there is no bluetooth device
            Serial.println("No device found");
        }
        Serial1.println("---");

    }
    clearAll();
}

void clearAll() {
    for(int i = 0; i < Serial1.available(); i++) {
        Serial1.read();
    }
}

// a bit hacked...
char* readSerial(int h) {
    char input;
    char buffer[100];
    if (Serial1.available() > 0) {
        int j = 0;
        for (int i = 0; i < h; i++) { // the id's start at char 21, se we copy from there
            input = (char)Serial1.read();
            if(i >= 21) {
                buffer[j] = input;
                buffer[j+1] = '\0';
                j++;
            }
        }
        return buffer;
    } else {
        return "No Data";
    }
}