Bluetooth rc controller скетч

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Источник

Arduino Bluetooth RC Car (Android Controlled)

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Introduction: Arduino Bluetooth RC Car (Android Controlled)

Hello, in this project I will show you how to transform an RC toy car to Bluetooth controlled through your Android smartphone!

Before starting, make sure that you have:

Arduino uno board
L293D motor driver
HC-06 Bluetooth module
RC Car that can fit all the above !

1M & 100K resistor for battery level
4x leds for lights
1x speaker/buzzer for horn sound

For power, you can use the existing batteries (4x 1.5V AA), or replace them with a LiOn rechargeable battery pack.

(I used 12V LiOn rechargeable battery pack)

Step 1: Remove the Existing Rc Circuit

Before starting, remove the existing rc circuit. You will not need it any more. you will make a better one from the beginning with Arduino uno 😉

Now, with one battery AA 1.5V you must find the polarity of 2 c motors.

For movement motor (back side) the positive polarity cable will be that moves the car forward.
For direction motor (front side) the positive polarity cable will be that moves the wheels left.

Step 2: Breadboard Schematic

Ι suggest you to build your circuit on (small) breadboard first.

You can use on/off switch of car like this:

If you have a «big» rc car it will need more power so you can use L298 module board. L293D motor driver will give max 0.5A per channel and it will be come very hot after while. L298 module board has a heat sink and can give 1A per channel, but is bigger than L293D.

Step 3: Code

Download and open file with Arduino ide. Read every line of code (+comments) to understand how it’s working and then upload it to your Arduino uno board!

(for programming arduino uno board you must disconnect first the RX & TX pins of Bluetooth module)

Attachments

Step 4: Android Bluetooth Controller

To control your new Bluetooth car, download and install this android application:

First enable Bluetooth and establish connection with BT module.
(ex. HC-06, password 1234)
Use «Help & info» button if you can not understand how it is working.

Accelelometer function is under developing, use with attention!

If you have problem with this app on your android device you can also use this one.

Step 5: Video of My BT ArduiCar

Video is in Greek language but I believe that you can understand it.

Remember that Bluetooth technology will give you max 15-20 meters of control.

13 People Made This Project!

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192 Comments

HariN27

bro i want to add a ultrea sonic [distance sensoer] to the same code that is the car will stop automatically when objects come naear 2meters,plz pm me harinadh.38@gmail.com

JomarM3

could you kindly send this also to me? i am also planning to add the ultrasonic sensor 🙂 thank you, my email is jmangubat528@gmail.com

HariN27

IM SOORY I DID NOT SEE YOUR MESSAGE
PING ME AT harinadh.38@gmail.com

HariN27

if isuccess i will send u

Hey I have an HC-05 can I use it.

I made it, but changed it, but used lighter weight materials. I created another branch of instructables at https://www.instructables.com/id/Bluetooth-RC-Car-With-STM32F103C-and-L293D-Inexpen/.

Thank you, Vasilakis Michalis!

HarisY

Hello, I have made this project and run well. But when I press forward or other button continuously, the system became hang and not respond to any command from android. After I press reset button on Arduino, it back to normal again. At first I think arduino deficient power because I use 1 battery source. So I try to separate battery for arduino and for motor DC and configure the jumper on L293D motor driver shield. But it still hang when I run the car with continuous pressing. What should I do? anybody have the same problem like me? thanks in advance.

The Bluetooth module must be configured otherwise it will NOT work! https://www.youtube.com/watch?v=ZdvKh3c_yoQ . . That’s why my module doesn’t give life signs.

How much mah battery we have to use ?

LashaG

I was using this app for a while and now it sends only S on any button can you help me?

I made rc car that is a bit bigger than it’s shown. My problem is that there is too low voltage to turn front wheels. I don’t know what to add or change to put more voltage. I think that arduino puts out too low voltage. 10V battery sould be enough. Could you help me out?

You can use L298N motor driver and add additional battery to use the motor.

RoboT16

Can i use l298n in this programing

Hello, can I change my iOS Bluetooth controlled car to Remote Control? I have

Silverlit RC 1:16 Enzo Ferrari

Can I use HC-05 bluetooth module instead of 06 and is there any AT mode settings in this project

ErvanP

Can i have the android apps code.

JhonG26

Can I use here 10000mah 5V powerbank instead of 12v LiOn battery; and instead of bluetooth module can I use wifi module instead? thanks!

Источник

Simple Bluetooth RC Car (Arduino Nano + HC-05)

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Introduction: Simple Bluetooth RC Car (Arduino Nano + HC-05)

I will share my simple project on how to use your android phone to control robot car.

Step 1: The Hardware

1 x Arduino Nano
1 x HC-05 Bluetooth module
1 x Motor Driver Module (TB6612FNG)
2 x Motors ( with Wheel)
1 x Battery for Arduino
2 x Battery for Motors

Step 2: Connections

D3 — PWMA
D4 — AIN2
D5 — AIN1
D6 — STBY
D7 — BIN1
D8 — BIN2
D9 — PWMB
GND — GND

Step 3: Codding

/* RC_Bluetooth_2018_v6 
* By: Khamlek HOMSOMBATH * Date: Jan 17, 2018 * Download Controller for Android : https://play.google.com/store/apps/details?id=com. > */ #include // arduino>>bluetooth // D10 (as RX) >>> Tx // D11 (as TX) >>> Rx SoftwareSerial bluetooth(10, 11); // RX, TX #define ledpin 13 // Connected to LED #define PWMA 3 #define AIN2 4 #define AIN1 5 #define STBY 6 #define BIN1 7 #define BIN2 8 #define PWMB 9

String data = ""; void loop() < while(bluetooth.available())< char a = bluetooth.read(); if(a==')') < setData(data); data = ""; return; >data += a; > >

int ledVal = 0; void setData(String data)< data.trim(); int index = data.indexOf(","); if(index != -1)< int angle = data.substring(0,index).toInt(); int strength = data.substring(index + 1).toInt(); digitalWrite(BIN1,0); digitalWrite(BIN2,0); digitalWrite(AIN1,0); digitalWrite(AIN2,0); if (angle < 180)< digitalWrite(BIN1,1); digitalWrite(AIN1,1); if(angle < 90)< analogWrite(PWMA, strength * 255 / 100); analogWrite(PWMB, strength * (angle * 255 / 90) / 100); >else if(angle > 90)< analogWrite(PWMA, strength * ((180 - angle) * 255 / 90) / 100); analogWrite(PWMB, strength * 255 / 100); >else < analogWrite(PWMA, strength * 255 / 100); analogWrite(PWMB, strength * 255 / 100); >>else if(angle > 180) < digitalWrite(BIN2,1); digitalWrite(AIN2,1); if(angle >270)< analogWrite(PWMA, strength * 255 / 100); analogWrite(PWMB, strength * ((360 - angle) * 255 / 90) / 100); >else if(angle < 270)< analogWrite(PWMA, strength * ((90 - (270 - angle)) * 255 / 90) / 100); analogWrite(PWMB, strength * 255 / 100); >else < analogWrite(PWMA, strength * 255 / 100); analogWrite(PWMB, strength * 255 / 100); >> return; > if(data.equals("a")) < if(ledVal==1) ledVal=0; else ledVal=1; digitalWrite(ledpin, ledVal); return; >Serial.print("Recieved: "); Serial.println(data); >

Attachments

Step 4: Testing

Please download Duino Joy Android App at

Pair your Arduino Car to your Mobile phone in bluetooth setting on your phone
Open Duino Joy app
Click ‘Connect’ button
Select ‘HC-05’ or any name you set for your HC-05
Let’s play!!

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12 Comments

can we give power using only 4*3.7v 1850mah ?

Sir, Can u tell the connections of HC-05 and Motor driver

lekpkd

Hi, It is just VCC and GND

Sir could you explain the black wire coming from 9v to TB6612FNG and from there to the bluetooth module. What is that connection? Please help as its not provided in the above procedure.

Hi, I want to add something else for future readers, since it has several power sources, it is necessary that the GND be common throughout the electronic circuit 🙂

lekpkd

Thank you for comment, These are GND connection, you can link from Arduino to Bluetooth module directly.

old post, but does this code only work for the Duino Joy app?

lekpkd

This code is write to work with Duino Joy app, but you can make some change to work with other app too.

1.Hola genio! Estoy armando uno, con un motor de destornillador electrico, una placa nano, el modulo y el controlador de motor, me podrías pasar una configuracion de arduino para que funcione con tu app? tambien pienso implementar leds! desde ya gracias

lekpkd

Hi, I don’t understand Spanish, but hoe this help.

You can test Arduino with my app by Simple code below:

SoftwareSerial bluetooth(10, 11); // RX, TX

Serial.begin(19200); // Display to Arduino IDE Serial Monitor

bluetooth.begin(9600); // Communicate with Bluetooth module

while(bluetooth.available()) // Wait for data from bluetooth

char a = bluetooth.read(); // Read Data as Char from Software Serial

Serial.println(a); // Print data to Serial Monitor

Could you please make one with l9110s module. I have tried making with different drivers such as l293d but i failed. At the moment i have arduino nano and l9110s but i keep failing again and again. Am totally new to connections and coding but tutorials didnt help either. Need help!

Источник

Bluetooth rc controller скетч

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