Built your own portable charger with IC7805

Built your own portable mobile charger with simple circuit.....

Components required:

     1. LM7805(voltage regulator)

     2.Bread board or PCB

     3.Connecting wires

     4.Solder and soldering paste if in PCB

     5.9V battery

     6.Battery snip

     7. Usb


Procedure:

Step 1: Select the components required

Step 2: Now place 7805 IC into the board

Step 3: Now make power supply of 9v into input pin

Step 4: Now ground the middle pin into 9v battery

Step 5: Then connect the out pin into mobile usb cable

Step 6: Connect with insulating tape

Step 7: Connect your mobile with usb pin

Step 8: It is now charging

Step 9: Watch below video..

Bluetooth controlled car by using Arduino

Apparatus required: 

1 X  Arduino Atmega328

1  X Bluetooth module ( HC-05/HC-06 )

1 X Chassis

4 X  Wheels ( OR ) 2 x Wheels supports to chassis


4 X  Motors ( OR ) 2 x Motors supports to chassis

1 X  L293D IC   ( OR )   H-Bridge


1 X Android mobile with Bluetooth controller app

Circuit:

Connection:

Step 1:     Here pin configuration is that arduino pin 3 is going to connect with in1 in L293D

Step 2:     Then arduino pin 3 is going to connect with in2 in L293D

Step 3:     Then arduino pin 4 is going to connect with in3 in L293D

Step 4:     Then arduino pin  5 is going to connect with in4 in L293D

Step 5:     Then Arduino pin 6  is going to connect with in5 in L293D

Step 6:     Then connect the bluetooth module HC-05/HC-06  with arduino with below pins

Step 7:     The pin TX in the Bluetooth module to the arduino pin 10 

Step 8:     The pin RX in the Bluetooth module to the Arduino pin 11

Step 9:     Then connect 5V and GND  pins to that Arduino pins

Step 10:     Then upload the program given below to the Arduino board

Step 11:     Download the Android mobile app given below and install it to your Android mobile  OR                     to learn how to develop this android app CLICK HERE

                                 App screen looks like

Step 12:     Then pair HC-05/HC-06   with your mobile 

Step 13:     Then connect the  HC-05/HC-06 with that app.

Step 14:     Then make use of that app to control the car. 

Working:  

Program:

Bluetooth control program


Bluetooth control mobile app

To learn how to develop this android app click here

Implementing:

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