RC Car to BT Car Controlled with Blynk

Converting a common RC car to a Bluetooth car, using an Arduino 101 & controlling with a smartphone via Blynk app.

IntermediateFull instructions provided2 hours12,207

Things used in this project

Hardware components

Arduino 101

SparkFun Dual H-Bridge motor drivers L298

SparkFun Logic Level Converter - Bi-Directional

Software apps and online services

Blynk

Story

Hi! Everyone loves RC car, but sometimes there are some problems like too short range or conflict with another RC car (when use same frequency).

But inspired in BT feature of Arduino 101, I wanted to start this project by turning a broken car to BT controlled with phone inclusive.

1. Setting Blynk App

For a tutorial setting Blynk app with an Arduino 101 using BT see: https://create.arduino.cc/projecthub/nhuberfeely/arduino-101-blynk-bluetooth-tutorial-cb4c5d

2. Setting Circuit

For Safe !!!

I burned a Genuino 101 testing the L293D :'(

L298N

I'm using original NiCd batteries of the RC car.

3. Connecting Car Motors

4. Setting Blynk Project

5. Testing and Fun!

Code

Hello101

//#define BLYNK_USE_DIRECT_CONNECT

#define BLYNK_PRINT Serial

#include <BlynkSimpleCurieBLE.h>
#include <CurieBLE.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "282...";

BLEPeripheral  blePeripheral;

void setup() {
  Serial.begin(9600);
  delay(1000);

  blePeripheral.setLocalName("Blynk");
  blePeripheral.setDeviceName("Blynk");
  blePeripheral.setAppearance(384);

  Blynk.begin(blePeripheral, auth);

  blePeripheral.begin();

  Serial.println("Waiting for connections...");
}

void loop() {
  Blynk.run();
  blePeripheral.poll();
}

Credits

Laurence Daxes

2 projects • 35 followers

Systems Engineer Bachellor, I Love technology, and IoT World https://youtube.com/c/DaxesHacks

RC Car to BT Car Controlled with Blynk