Make A Simple Diy Bluetooth Control Robot

Hello, all. I am going to share my experiences of making a Bluetooth control robot with you guys. This is very easy to make a cheap robot. you can get all the components on amazon and the app and sketch from play store.

Step 1: Components Needed




1.) 2 DC Geared Motors +Wheels

2.)Chasis

3.)L293D IC Based DC Motor Control Board (The one I bought is from here: www.kynix.com/Detail/334914/L293D.html)

4.) Caster Wheel

5.)Battery bank (As per your power requirement I used 11000Ah cause i want to play more)

6.)Arduino UNO Board( You can use any board .I used Arduino Uno )

7.)HC 05 Bluetooth Module(Amazon Rs.190)

8.)Jumper Wires Soldering Iron

9.) Arduino Bluetooth Control App from playstore (Because it is free and the amker also provide link to download the sketch which will work with the app.

Step 2: Connection
1.)Connect motor and caster wheel with the chasis

2.)Solder the jumper wires with motor (just take care of the polarity)

3.)Connect the motors to the motor control board (you will recognize automatically when you see the board its easy)

4.)Make a USB connector to give main supply to the board (Just cut you spare USB cables ,take care of the polarity)

5.)Now connect Motor control Board to arduino Uno (Refer the Pic)

Arduino Board
A1 -- 4
A2 -- 5
B1 -- 6
B2 -- 7
VCC- 5V
GND- GND
You can use other pins also accordingly you have to change the Sketch

6.)Connect Bluetooth Modue HC 05 to Arduino (Refer the Pic) (Do these connection after uploding sketch only or the sketch will not upload)

HC 05 Arduino
TX RX
RX TX
VCC 3.3V
GND GND

Step 3: Sketch and other details

1.)Upload the sketch to the board

2.)Download arduino bluetooth control on your mobile

Now In the app

Device 1 ON Motor 1 FWD

Device 2 ON Motor 1 Backward

Device 3 ON Motor 2 Fwd

Device 4 ON Motor 2 Backward

So for Fwd Movement Device 1 and 3 ON Other OFF

For Backward Movement Device 2 and 4 ON Other OFF

Like wise left and right

This is the best free app i got on play store and since Am not an app developer i am just using it

You can search for more apps or can modify the sketch for better control.