Arduino Bluetooth HC-05 Interfacing

                                            
                      Arduino Bluetooth HC-05 Interfacing 

Arduino bluetooth hc05 module interfacing and controlling it from a smartphone (android) is a great idea. After learning this interface a bluetooth module operates at Scientific and Medical (ISM) 2.4GHz short-range radio frequency band. Bluetooth uses frequency-hopping spread spectrum This type of bluetooth has a range around 30 meters.
There is a different bluetooth module in the market for hobby and embedded system development. We are using HC 05 bluetooth module in this tutorial.

In this tutorial, we interface bluetooth module to the arduino and one LED at digital pin 13. An android device will be paired to HC-05, and by some android app we switch ON and OFF the led.

Description

The hc-05 bluetooth module has six pins Vcc, GND, RX, TX, Key and State. By default, this is a slave device.

But if you want to send something from this module then we need to change it from the main mode. If we are connecting HC 05 with the Android phone we just use it in Slave Mode. The default transfer rate will be 9600 baud rate. The HC-05 module has a factory set pin "1234" which is used for pairing to the phone.

Hardware Required

• Arduino Uno
• Bluetooth Module HC 05
• LED
• Resistor 220 ohm
• Breadboard

Arduino Bluetooth Connection

Arduino and bluetooth hc05 serial connection is made. For This project, They Should Knov  Arduino serial communication .

13. Arduino already has a led at pin 13 But we are going to understand here

Arduino Android Bluetooth App

There is a different arduino android bluetooth app for controlling the arduino from the android. We have used  Bluetooth Controller App  developed by FineApps because we are using a long time and it's very easy to understand. You can configure this application

You can easily see that all the buttons are empty and we can edit according to the project.

So press button "SET KEYS"

A new window will open:
Key Name:  Led ON and Led OFF => This is button Text
Key Value:  => A and B respectively, this key value sends via bluetooth of android to HC-05 module Now press OK.

Now connect the bluetooth module as shown above and then supply it. Pair the HC-05 device with the mobile It is just like we pair the other mobiles. The passkey is "1234". Once you've got the bluetooth controller app pressing the button "SCAN".

And its Done! Now we write some code to arduino that ON and OFF the LED by accepting 'A' for "ON" and "B" for "OFF".

Arduino Bluetooth HC-05 Code

By this bluetooth programming, we can create different arduino bluetooth projects.
Here the function  Serial.available() is used to monitor the incoming character 'A' and 'B'. This function will be true if it gets anything from the serial port. Once it gets some value it checks whether it is coming from the Led ON or LED OFF button and according to take decision.

/ * In this program, a user controls the Led by ON and OFF the button.
Each switch has a key value so the arduino can identify based on the key.
Button Key Value
Led ON 'A'
Led OFF 'B'
* /
Int  ledPin  =  13 ;                  // LED connected to digital pin 13 
char  read_bt ;

Void  setup ( )  { 
  pinMode ( ledPin ,  OUTPUT ) ;       // the digital pin us Output Sets 
  serial . Begin ( 9600 ) ;      // opens serial port, sets data rate to 9600 bps 
}

Void  loop ( )  {  
  If  ( serial . Available ( )  >  0 )  { 
  were // read incoming byte: 
  Reed_bt  =  Serial . Read ( ) ; 
  If ( read_bt == 'A' ) 
   digitalWrite ( ledPin ,  HIGH ) ;    // sets the LED on

   If ( read_bt == 'B' ) 
   digitalWrite ( ledPin ,  LOW ) ;     // sets the LED off 
  } 
}

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How to use a vinyl cutter

                                                How to use a vinyl cutter

What is vinyl cutter ?

A vinyl cutter is a type of computer-controlled machine. Small vinyl cutters look like computer printers. The computer controls the movement of a sharp blade. This blade is used to cut out shapes and letters from sheets of thin self-adhesive plastic (vinyl).

The vinyl cutter uses a small knife to precisely cut the outline of a picture into a sheet or piece of vinyl. The knife moves side to side and turns, while the vinyl is moved beneath the knife. What results from the cut process is an image cut into the material. The material is then 'weeded' where the excess parts of the picture are removed. It is possible to remove the positive parts, which would give a negative sticker, or you could weed the negative parts, giving a positive sticker. Removing the letters would be like removing the positive, giving a negative image of the word, etc.


Now i can say how to use vinyl cutter ?



Loading your Material

• Cut off a large piece of material from the roll. This works better than feeding directly from the roll.
• Lift the rollers using the lever to the back left of the machine.

• Notice the white markings along the cutting area of the machine. Move the rollers by hand to where you will place the edges of your piece. If the blade is in the way move it to the right. Make sure the rollers coinside with the white markings so that they can catch the moving ridges.

Then put your piece under the rollers and use the lever to put the rollers down, holding the piece in place.



Now there will probably be a message about sheet unloaded. Select "piece". The machine will measure the width and length of your piece.

• Use the arrow keys to get to where you want your origin to be (the origin will be the bottom left corner of the cam.py window). Press and hold the origin button until the message appears in the display that origin is set.

• It might be necessary to prop up the cutter, if your copper piece is longer than 12" as it needs to remain bent (it does not flatten out completely when taken of the rool) otherwise it will crumple.

Sending the File
Method One - cad.py file

• Open a shell and type "cad". You can make any shape in cad.py you want to cut out.
  
• Next, select the right output device and do 1 contour. Set the desired force and velocity.

Method Two - png file

• Open cad.py - Open a shell and type "cad" or open it from the desktop icon. Your first screen will look something like this. Click the "camm" button. 

Click on "output format" and select "camm" from the drop down menu.



Next, click "contour". Set the desired force and velocity - most likely you will use the settings preselected by cad.py (force = 45, velocity = 2).



Wait a moment for cad.py to contour your png image. When it's done, you will see a "send to machine" button. Click there, and the vinyl cutter will begin on your cutting job.

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Make a slippers stand

                                                    Make a slippers stand

सबसे  पहेले मैं ने चप्पल स्टेंड का पूरा rought डायग्राम  निक्कल लिया था .

पूरा चप्पल स्टेंड का measurements  ये है.

                                   hight --75  cm

width --50 cm

lenght -- 30 cm

ये ही पूरा चप्पल स्टेंड के measurements  है .

इस पूरा स्टेंड आयरन राड से ही बनाया था .

complete prose's

सबसे पहेले मैंने 75 cm के राड्स को 8 क्वांटिटी से कटर को use करके कट किया था .

उस के बाद 50 cm   के राड्स को 8 क्वांटिटी से कटर को  use करके कट किया था .

उस के बाद 30 cm   के राड्स को 8 क्वांटिटी से कटर को use करके कट किया था .

पूरा कट कर के होने के बाद पुरे राड्स को ग्रंडिंग कर के फिनिशिंग दिया था .

उस के बाद 75 - cm  and ,50 - cm , also 30 - cm के कट किया हुआ राड्स को use कर के

एक squer बनाया था.

सेम उसी तरह से 4 squer बनाया था.

पूरा complect होने के बाद squer's को wellding की या था.

उस के बाद 75  - cm के राड्स को use कर के एक स्ट्रेचर बनाया था.

उस के बाद 75  - cm राड्स को squer को वेल्लिडिंग कर के चप्पल स्टेंड का काम complete  किया था.

पूरा चप्पल स्टेंड complete उसी measurements से iron के नेट को निकाला था.

our उस  नेट  को squer  में रककर wellding किया था .

                  finally look like this

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Incubation process of chicken

                                              Incubation process of chicken

1. 1. Contents 
2. 2.Incubation & its Types 
3. 3. Obtaining hatching eggs 
4. 4.Storage and care of eggs prior to incubation 
5. 5.Location of incubator 
6. 6.Readying the incubator for operation 
7. 7.Preparing the eggs for incubation 
8. 8.21st day developmental stages of embryo 
9. 9.Final stage of incubation 
10. 10. Factors affecting the incubation 

1. Incubation : “The process of changes of fertile egg to a living organism capable of walking and eating. Through Natural incubation at small scale using “Broody Hen” and Artificial incubation at large scale for the commercial purpose using different machines called “Incubator”is called incubation. 

1. Types of Incubation :There are two types/methods of incubation 1. Natural incubation (Broody Hen) 2. Artificial incubation (Incubator) 

Now i can talk with  Natural incubation 

Natural incubation (Broody Hen)  The Broody hen is a time tested way to hatch eggs. Very good at her job.  To use a hen for hatching you have to do one of two things Find a hen sitting.  Induce a hen to sit .

Natural incubation (Broody Hen)

  Signs of broodiness 

 Clucking 

 Stays away from the rest of the flock

 Ruffled feathers

 Aggressive and protective of nest 

 On the nest at night .

Natural incubation (Broody Hen)  Characteristics:  No electricity required  Hen does all the work herself  Will brood chicks after they hatch.  High hatchability rate  Some breeds hatch better under hens (Nankin) than in incubators.  Good for hatching small # of chicks per year. 

Cont… 

 Drawbacks:

 Can only sit on a small # of eggs at a time.

 Hen sometimes breaks eggs. 

 Will occasionally quit and get off nest. 

 Disease transmission from hen to chick 10

 Artificial Incubation Incubator

 An incubator is basically a box that holds eggs while maintaining appropriate temperature, humidity, and oxygen level. 

 Incubators have varying capacities and adapters for eggs from different species 

 Popular incubator models often include 

 Automatic turners 

 Humidifiers, and  Temperature controllers 

Artificial Incubation 

 Incubators comes in 

 Forced air incubator 

 Still air incubator 

 The temperature and humidity in a forced air incubator is more consistent. They also return to       desired temperature and humidity more quickly after being opened. 

 Still air incubators can give inaccurate humidity and temperature readings and the temperature in them can vary considerably. 

Preparation Stage 

 Chick incubation process is 21 days 

 Gather fertilized eggs 2 – 3 days in advance 

 Grading and cleaning of eggs 

 Storage of hatching eggs 

 Disinfection of hatching eggs 

 Location and set up of incubator 

From Egg to Chick: 

Incubation Procedures 

1. Obtaining and caring of eggs

  Gather fertilized eggs from a disease free breeder farm 

2. Grading and cleaning of hatching eggs 

 In selecting hatching eggs, the requirements regarding shell quality and egg shape will be higher for layers than for broilers.

Eggs unfit for hatching are 

 dirty eggs 

 Cracked eggs 

 thin shelled eggs 

 eggs with shells, which are rough and not uniform 

 misshapen eggs 

 eggs with abnormal spaces - loose or floating air cells 

 too large air cells 

Location and Preparation of incubator

The incubator should be in a room that has 

 No drafts 

 No direct sunlight; 

 The temperature (85-99°F ) and humidity should be controlled and stable. 

 The incubator and hatcher should also be isolated from the growing facilities. 

Cleaning and Sanitation of incubator

 Sanitize the incubator with detergent or with the combination of detergent and disinfectant and run it     for several days before setting the eggs. 

  *  This will ensure that the incubator is maintaining the proper temperature and relative humidity 2-3       before the eggs are set. 

 Adjusting the temperature and humidity after the eggs are set can decrease hatchability. 

Preparing the eggs for incubation 

 To ensure proper turning, mark all eggs on one side with an “x”, the other side with an “o” 21 .

The day eggs are set  
 Let stored eggs warm to room temperature for 4 hours to 8 hours before setting them in the incubator. 
 If you place cold eggs in a warm, humid incubator, condensation will form on them and lead to possible contamination or suffocation. 
 Once the eggs are in the incubator, do not adjust the temperature or humidity for a few hours, unless the temperature exceeds 95 to 99°F.

Cont… 
 After 4 hours, make proper adjustments. The final temperature should vary only 0.5 degree above or below 99.5°F. 





The development of the embryo can roughly be divided into the following stages: 
a. In the hen : three layers of cells 
b. During incubation:

 1st - 4th day : initial stage of inner organs 
 5th - 14th day : initial stage of outer organs 
 15th - 20th day : growth of the embryo 
 21st day : hatch of the chicken 

Summary of the embryonic development from day to day. 
Stage I: Development of the internal organs

 1st day : enlargement of the blastodisc 
 2nd day : heart starts beating, tiny bloodspots appear 
 3rd day : initial stage of the beak, legs, wings 
 4th day : initial stage of the tongue 
 5th day : shaping on the reproduction organs 

 Stage II:Development of the external organs 

 6th day : beak gets shape 
 8th day : shaping of the feathers 
 10th day : hardening of the beak 
 13th day : shaping of the leg scales and claws the size of the allantois reached its maximum 
 14th day : the structure of the embryo is completed the embryo settles for its final position .

Stage III: The growth of the embryo 

 15th day : leg scales and claws become horny from the 15th – 19th day the intestines are withdrawn      into the body cavity. The neck bends forwards 
 16th day : the contents of the allantois has disappeared completely 
 17th day : the beak directs itself toward the air cell the fluid of the amnion continues to disappear.        This will be finished at the 19th day .

Cont…

 19th day : the yolk is being withdrawn into the body cavity the air cell gets penetrated by the beak 
 20th day : the yolk is withdrawn, the embryo fills the whole egg, excluding the air space the eggshell is fractured 
 21st day : the chicks is hatched .

Candling “Shining a light through the egg to observe embryo development is called candling.” 

 White or pale eggs are easier to candle than dark or spotted eggs. 
 Embryos can be confirmed easily after 8 to 12 days of incubation.

Candling

 The living embryo will appear as a dark spot in the large end of the egg surrounded by a faint outline     of blood vessels. 
 The embryo appears as dark spot that becomes larger as incubation progresses. 
 Eventually you will see only a dark mass and the air cell. 

Candling In comparison, 
 An infertile or un-incubated egg transmits light brightly. 
 Dead embryos will sometimes appear as a ring or a smear of blood in the egg or a dark spot dried to     the inside of the shell. 
 Once it dies, the embryo no longer grows and the blood system fades. 
 Cooling that occurs for less than 10 minutes during candling does not harm the embryo. 



 Hatch stage

 This stage refers to final 2 to 3 days of incubation when chicks hatch out of the shell. 
 Transfer eggs to a dedicated hatcher for the last 3 days to 4 days of incubation and do not turn      them. 
 During this stage, decrease the temperature 1°F and increase the relative humidity to 65- 70%.
  You can increase the humidity by adding a wet sponge or wet paper towels to the incubator.

Final Stages of Incubation

After the 17th day... 
 Eggs should not be turned 
 Incubator should not be opened unless it is necessary to add water 
 Chicks will start to pip the shell around the 19th day. 
 All chicks which are going to hatch should be out of their shells by the 21st day 

Managemental factors for the incubation and hatching process 
For a special incubation and hatching the following factors are of major importance: 
1. Temperature 
2. Humidity 
3. Ventilation 
4. Turning

Temperature

 During incubation till 18th days the temperature should be 99.5◦-100◦ F. 
 In the hatcher the temperature should be 98.5 - 99◦ F. 
 Make sure of a constant temperature and regularly check the thermometers of deviations. 
 Too high as well as a too low temperature has influence on the hatching results. 
 Check the temperature at least twice a day. 



Humidity

 The ideal moisture level is about 50 – 55% relative humidity (83o - 87o F (28 - 31o C) on a wet bulb    thermometer) for the first 18 days. 
 About 65 % (89o - 90o F (31 - 32o C) wet bulb) for the last 3 days. 
 Excessive drying because of low humidity will cause the chick to stick to the shell and fail to survive.  To increase the humidity level the last three days, set an extra pan of water in the incubator. 

Turning the eggs

 During the incubation period (1-18days) the hatching eggs need regular turning (90o ) to prevent that the embryos from sticking to the shell membranes. 
 As it will do if it is left in one position too long. 
 Turn the eggs at least (10-12) times a day.

Cont…

 Temperatures too high, too low, or too variable during incubation 
 Too little humidity in the incubator or occasionally too much 
 Improper ventilation 
 Oxygen starvation 


Naw make a  Automatic Egg Turner

First thing you have to know about me is I am NOT going to spend any big money on anything.  I can always make it myself, with a little help from my friend also sir.  We are remodeling so I just so happened to have cabinets laying around taking up room.  I also just happened to get addicted to chickens about the same time.  So now that i have my bigger chickens settled into their new coops/pens I just had to start a new project.  So first things first the cabinet.  It is a 30" base cabinet that had sliding trays we are using for the egg turner trays. 

What we need

This motor is a 10 RPM 12V DC motor for the IncuKit DC. Use this motor to make your own egg turner. The IncuKit DC allows you to set an interval so the motor will turn on for a few seconds every few hours (Customize to your own turning needs).

RTC module

This a link How it's work

http://tronixstuff.com/2014/12/01/tutorial-using-ds1307-and-ds3231-real-time-clock-modules-with-arduino/

We keep getting requests on how to use DS1307 and DS3231 real-time clock modules with Arduino from various sources – so this is the first of a two part tutorial on how to use them. For this Arduino tutorial we have  two real-time clock modules to use, one based on the Maxim DS1307:

Arduino nano



The Arduino Nano USB Microcontroller v3 (No Headers) is a breadboard ready version of the Arduino Mini 05 Microcontroller Module with integrated USB. The Nano has everything that the Arduino Duemilanove USB Microcontroller Module has (electronically) with more analog input pins and an onboard +5V AREF jumper. The Nano automatically senses and switches to the higher power supply, so there is no need for a power select jumper.

The nano's pin layout works well with the Mini or the Basic Stamp (TX, RX, ATN, GND on one top, power and ground on the other). The Arduino Nano USB Microcontroller v3 (No Headers) can be powered via the mini-B USB connection, 6-20V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). The power source is automatically selected to the highest voltage source. The package contains only the microcontroller.

Features:
• Automatic reset during program download
• Power OK blue LED on the bottom
• Green (TX), red (RX) and orange (L) LED
• +5V to AREF jumper
• Auto sensing/switching power input
• Small mini-B USB for programming and serial monitor (cable not included)
• ICSP header for direct program download
• Power OK blue LED on the bottom
• Standard 0.1" spacing DIP (breadboard friendly)
• Manual reset switch

Pin diagram Arduino nano

How to use relay modules to control AC devices?

A relay is an electrically operated switch to control high power/voltage or AC household devices using low-power signals from a microcontroller, etc. Many relays use an electromagnet to operate a switching mechanism mechanically, but other operating principles are also used. Relays are used where it is necessary to control a high power/voltage circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal. The most common types of relays that are used in the relay modules are the 12V SPDT (Single pole, Double Throw) type relays.

Arduino Tiny RTC I2C Real Time Clock

This Arduino Tiny RTC I2C module incorporates the DS1307 I2C real time clock IC and the 24C32 32K I2C EEPROM storage. What's more, it has a DS18B20 temperature sensor on board. All of this in a tiny package of 25mm x 28mm x 8.4mm. It comes with a LIR2303 rechargeable lithium battery, and a charging circuit is included in the module. When the temperature sensor is off, the RTC module can run for 1 year on a single charge.

This module is used for applications such as datalogging, timing applications ex. turning on the sprinkers at 4pm in the evenings. Since the module is self powered the time data is maintained even if the Arduino is powered off, allowing for building low power systems which can run for a long span of time without change of batteries.

The most useful pins are duplicated from P1 to P2. If needed, the pin "BAT" can be fed into an ADC pin for monitoring the battery voltage. The pin-outs are explained below. Connecting "VCC" to 5 V will trickle charge the onboard battery. 

Arduino Tiny RTC I2C Real Time Clock Pinout
PIN	Description	Comment
BAT	Battery voltage	To monitor the battery voltage, or not connected
GND	Ground	Ground
VCC	5V supply	Power the module and charge the battery
SDA	I2C data	I2C data for the RTC
SCL	I2C clock	I2C clock for the RTC
DS	DS18B20 Temp. Sensor output	One wire inteface
SQ	Square wave output	Normally not used

The I2C wires "SDA" and "SCL" are the data line and clock line, they should be connected to the corresponding pins depending on the Arduino board.

Board	I2C / TWI pins
Uno, Ethernet	A4 (SDA), A5 (SCL)
Mega2560	20 (SDA), 21 (SCL)
Leonardo	2 (SDA), 3 (SCL)
	20 (SDA), 21 (SCL), SDA1, SCL1 Example code is available here.  For more detail, please visit the Arduino Wire Library. Now it's time to connect relay module SO first difine a pins of relay  1.VCC  2.GND 3.COM 4.signal 4.Normally open 5.normally close Now connect a relay VCC to  Arduino 5v. Gnd to arduino GND. Your motor pin connect a relay normally open. And connect a arduino difine a any digital pin to relay signal pins. And also connec a adapter nutral to relay com pin. Also Aadptar anoither wire & motor another wire to jointed. Now connect a RTC to Arduino WE can use a only VCC,GND,SDA,SCA pins only. Now connecta rtc VCc to arduino Vcc  And connecta rtc GND to arduino  Also connecta rtc sda pin to arduino A5 pin. Also connect a rtc scl pin to arduino pin A4  .

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