How to make your own phone

How to make your own phone

How to make your own phone

the phone

A telephone is a device that allows people to communicate with each other from different parts of the earth, and it converts voice communication into electrical signals, which are transmitted to another person's phone and then converted back into a sound that the phone user can hear. There are four types of phones, which are: wired, wireless, cellular, and smart. With regard to wired phones, it has been dispensed with and the use of cellular and smartphones has been reported to.

cell phone

A cell phone, or what is also known as a mobile phone, is a handheld device through which calls can be made and received, in addition to the ability to send text messages. Mobile phones were previously limited to making calls only, but they have evolved in recent years to become equipped with many advantages, such as the ability to browse the web, play videos, photograph, and more.

How to make a phone

The simplest phone a person can manufacture is the scientific project for children, in which simple tools, such as plastic bags and strings, are used. The project requires some tools and equipment for its manufacture, as follows:

Necessary tools and equipment:

  - Reinforced plastic containers

  - thread

  - pencil

  - A nail, or any piece with a pointed tip

The steps:

   - With the pen, both plastic packages are broken from the bottom from the center of the cut.

   - Fixing the thread from each side to the place of the breach in the two packages, and holding it from each side so that it will not be executed. The length of the thread is preferably approximately three and a half meters.

   - Each person is given a package and kept away from each other so that the thread becomes tight. The thread must not touch any object other than the two packages.

   - One person puts his ear inside the package, while the other one, confuses him inside his package, so that the first person will be able to hear it.

 The reason a person hears the speaker through the package; It was his voice that made the thread vibrate, which transferred this vibration to the packaging of the listener.

Complex phone

With the Arduino computer board, you can build a cell phone that has a touch screen in addition to a rechargeable battery, and it can send and receive text messages, make and receive calls, as well as show the timing.

Necessary tools and equipment:

 - Arduino Uno Board.

 - TFT Touch Screen Panel; Specifically (TFT Touch Shield V2.0).

 - Unit (GPRS); Specifically (GPRS Shield V2.0).

 - Time Tracker.

 - Li-po battery, in addition to a battery charging circuit as a Li-po Rider, for example.

 - Box to contain the pieces, and can be prepared using a 3D printer.

Connections: After preparing the required equipment, they are connected to each other as follows:

 - Connect the GPRS unit to the Arduino board.

 - Connect the touch screen to the GPRS unit.

 - Connect the time tracker to the Arduino board.

  - The Arduino board is connected to an electrical source, and if you want to use a  rechargeable battery, the Arduino is connected to a charging circuit as a Li-po Rider, for example.

  - Connect the headphones to the GPRS unit.

Programming: The source code for the program to be run on the Arduino board is available on the GitHub platform, and contains all the libraries it needs. The code is obtained and installed on the Android tablet as follows:

  - Through the computer, the code is downloaded through the link ( https://github.com/Seeed-Studio/ArduinoPhone ), and this is done by clicking the (Download ZIP) button on the page.

 - Unzip the downloaded file, it will produce a folder named "ArduinoPhone-master".

 - Through the Arduino IDE development environment, the (File) button is pressed, followed by the Preferences button, and then the Sketchbook Location option.

 - Search for the folder (ArduinoPhone-master), and then press the (OK) button to save it.

 - Close the development environment program and then re-open it, and then click on the (File) button, then the (Sketchbook) button, and finally (PhoneCode) is selected, and this will open the main source code for the project.

 - After the Arduino board is connected to the computer, the Arduino board type corresponding to the used board is selected in addition to the port type, and then the code is raised to the Arduino board.

 After completing all the previous steps, a simple cell phone powered by a touch screen will be acquired.

Using a Raspberry Pi plate

Through the Raspberry Pi computer board, it is possible to build a touch-screen cell phone, and programmer David Hunt built a cell phone in this way, which he called an iPhone.

Necessary tools and equipment:

- Raspberry Pi Board.

- A dedicated TFT touch screen for Raspberry Pi.

- Lithium polymer battery, preferably 2500 mAh capacity.

- A unit (GPRS, GSM) with antenna, in addition to the earphone input, examples of such units are: (Adafruit's FONA, SIMCom's Sim900).

- DC converter to DC 5V difference, this converter converts the battery voltage difference of 3.7V to 5V to match the Raspberry Pi plate.

- A small electric switch.

- Foam board is square in the same surface area as the Raspberry Pi surface.

- Headphones and microphone.

- Wires, fasteners, seals, and velcro boxes; To install and connect parts.

- Subscriber Identity Module slide.

 Programming: The Raspberry Pi must support any Python language in addition to the accompanying libraries, as the project requires a (WiringPi) library, and finally the code that David Hunt wrote for the project, and it is downloaded through the link ( https://github.com/climberhunt/PiPhone ).

Connections: After installing the necessary software on the Raspberry Pi tablet, the connections are made as follows:

- Connect the touch screen to the Raspberry Pi tablet.

- Connect the battery to the electric switch, and connect the key to the GSM unit.

- Connect the head of the GSM unit to the DC adapter.

- Connect the DC power adapter to the Raspberry Pi board.

- Connect the transmission pin and the reception pin located on the GSM unit to the Raspberry Pi board.

- Insert the subscriber identification unit chip into the GSM unit.

- Place the Raspberry Pi on the insulation board, and then combine the components together using adhesive and velcro boxes. Battery is preferably placed between the Raspberry Pi plate and the screen.

After completing all the steps, the device turns on and the headphones and microphone are connected to the GSM unit, so the number to be called can be written on the touch screen. David Hunt believes that if the battery is of 2500 mAh capacity, it is sufficient to keep the device running for about three hours.

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