sudo apt-get update
sudo apt-get install owfs python-ow ow-shell -y

(ignore errors about not being configured)

sudo nano /etc/owfs.conf
Comment out
server: FAKE = DS18S20,DS2405

Find
# USB device: DS9490

Insert this below
server: device = /dev/i2c-1

Remove hashes from
mountpoint = /mnt/1wire
allow_other

sudo mkdir /mnt/1wire

sudo systemctl enable owserver.service

Reboot

sudo docker exec -it mosquitto sh

cd mosquitto/config

mosquitto_passwd -c passwd_file <username>

type password

re-enter password

exit

sudo nano /home/pi/IOTstack/services/mosquitto/mosquitto.conf

add

password_file /mosquitto/config/passwd_file

Piclone (gui) only backups the actual data - https://github.com/raspberrypi-ui/piclone

To run from command line

Copy this script https://github.com/raspberrypi-ui/piclone/blob/master/src/backup

On raspberry pi, run

sudo nano sdclone.sh

paste in the text

cntrl-x then y to save and exit

sudo chmod 777 sdclone.sh

I'm using a Sandisk external SD card and USB micro SD card reader

16gb Sandisk class 10 Micro SD card - https://amzn.to/350eGpw

Kingston Micro SD card reader USB - https://amzn.to/2Ver1BX

Run lsblk

NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda           8:0    1 14.9G  0 disk
├─sda1        8:1    1 43.2M  0 part
└─sda2        8:2    1 14.8G  0 part
mmcblk0     179:0    0  7.5G  0 disk
├─mmcblk0p1 179:1    0 43.2M  0 part /boot
└─mmcblk0p2 179:2    0  7.4G  0 part /

To run

sudo ./sdclone.sh /dev/sda /dev/macblk0

sudo apt-get update
sudo rpi-update
sudo apt-get -y dist-upgrade
sudo apt-get update

sudo apt-get install python-smbus i2c-tools mariadb-client-10.0 python-mysqldb git minicom build-essential python-serial python-dev python-pip fswebcam git scons swig python-openssl python3-lxml python-lxml -y

MQTT

sudo pip install --index-url=https://pypi.python.org/simple/  paho-mqtt

DHT22

git clone https://github.com/adafruit/Adafruit_Python_DHT.git

cd Adafruit_Python_DHT

sudo python setup.py install

BMP085

git clone https://github.com/adafruit/Adafruit_Python_BMP.git
cd Adafruit_Python_BMP
sudo python setup.py install

LEDs

git clone https://github.com/jgarff/rpi_ws281x.git
cd rpi_ws281x
scons

cd python
sudo python setup.py install

BME680

curl https://get.pimoroni.com/bme680 | bash

 Used as a central hub

Originally had My SQL database running but this was moved to a web site.

• Rasberry Pi B+
• 512mb ram
• Adblocker DNS server
• Pimornoni mini Black HAT Hack3r
• RFM69Pi 433Mhz Raspberry Pi Base Station Receiver Board
• Energenie Pi-mote Remote Control
• Owl +USB CM160 Wireless Electricity Energy Monitor

Another Raspberry Pi monitoring the weather

Uploads data every 10 minutes to a My SQL database

I tried using a Raspberry Pi to count the number of times the Wind Speed Anemometer revolved, but the Pi was unable to keep up.

So I used an Arduino Nano to do the counting.  The Raspberry Pi then looks for the output from the Arduino Nano

volatile byte count;

unsigned int loopcount;

unsigned int maxofcount;
unsigned int araysum;

unsigned int duration;
unsigned long tenseconds;
unsigned long sixtyseconds;

int countarray[6];

void setup()
{
  pinMode(13, OUTPUT);
  Serial.begin(9600);
  attachInterrupt(0, arduino_anemometer, RISING);
  
  tenseconds = millis() + 10000;
  sixtyseconds = millis() + 60000;
  
  //countarray[]= {0,0,0,0,0,0};
  
  loopcount = 0;
  maxofcount = 0;
  Serial.print("Startup\n");
  //printwait();
  count = 0;
}

void loop()
{
  if (millis() > tenseconds) 
    {
      countarray[loopcount] = count;
      loopcount++;
      if (loopcount > 5)
        {
            maxofcount = getIndexOfMaximumValue(countarray, 6); 
            araysum = getSumofArray(countarray, 6);
            Serial.print("Current Count#");
            Serial.print(araysum,DEC);
            Serial.print("#Burst#");
            Serial.print(maxofcount,DEC); 
            Serial.print("#\r");
            
            loopcount = 0;
            sixtyseconds = millis() + 60000;
        }

      //printwait();
      tenseconds = millis() + 10000; 
      count = 0;
      //Serial.print("\n");
    }
  else
     {
        if(millis() < (tenseconds - 20000))
          {
            tenseconds = millis() + 10000;
          }
     } 
}

void arduino_anemometer()
{
  count++;
  digitalWrite(13, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(50);
  digitalWrite(13, LOW);    // turn the LED off by making the voltage LOW
}


void printwait()
  {
      Serial.print("\n");
      Serial.print("                                   Current time - ");
      Serial.print(millis());
      Serial.print("      tenseconds = ");
      Serial.print(tenseconds);
      Serial.print("      sixtyseconds = ");
      Serial.print(sixtyseconds);
  }
  

int getIndexOfMaximumValue(int* array, int size)
  {
    int maxvalue = 0;
    for (int i=0; i<size; i++)
      {
        //Serial.print("\n");
        //Serial.print("              Array Number ");
        //Serial.print(i);
        //Serial.print("  Array value ");
        //Serial.print(array[i]);
        //Serial.print("  Max value ");
        //Serial.print(maxvalue);
  
        if (maxvalue < array[i])
          {
            maxvalue = array[i];
          }
    }
    return maxvalue;
  }

int getSumofArray(int* array, int size)
  {
    int sumofarray = 0;
    for (int i=0; i<size; i++)
      {
        sumofarray = sumofarray + array[i];
      }
    return sumofarray;
  }

Raspbian Jessie

sudo nano /etc/dhcpcd.conf
interface eth0

static ip_address=192.168.1.82/24
static routers=192.168.1.1
static domain_name_servers=192.168.1.162

On Older Raspbian

sudo nano /etc/network/interfaces

address 192.168.1.67
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1

Configure channel and speed on emonPi to work with Tintx3 - 433mhz group 210

minicom -D /dev/ttyAMA0 -b 38400

(pi 3 -  sudo minicom -D /dev/serial0 -b 38400)

type:-

210g

4b

Pi is on IP 192.168.1.50
Pi web server is on 192.168.1.51

Router is 192.168.1.1

DNS are both pointing to google DNS servers
8.8.8.8
8.8.4.4

sudo service dnsmasq status

sudo nano /etc/dnsmasq.d/dnsmasq.custom.conf

sudo nano /etc/resolv.conf

dig adafruit.com

sudo nano /etc/network/interfaces