This code summarizes an Arduino sketch that controls a motor using Blynk. It defines pins and tokens for connecting an Arduino to a Blynk project over Bluetooth. Slider values written to different Blynk pins are used to control motor direction and speed. The motor is enabled or disabled based on the value of one pin, and analogWrite is used to control speed on the motor pins based on the slider values and direction controls.

1. #define BLYNK_PRINT Serial
#include <BlynkSimpleSerialBLE.h>
#include <SoftwareSerial.h>
SoftwareSerial SwSerial(10, 11); // RX, TX
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "c52bbc1504a2449d89667a2b320b2d47";
int pinValue;
SoftwareSerial SerialBLE(10, 11); // RX, TX
int enable=0;
int frwd=0;
int revr=0;
int spd=0;
void setup()
{
// Debug console
Serial.begin(9600);
SerialBLE.begin(9600);
Blynk.begin(SerialBLE, auth);
Serial.println("Waiting for connections...");
pinMode(5,OUTPUT);
pinMode(6,OUTPUT);
}
BLYNK_WRITE(V1)
{
pinValue = param.asInt(); // assigning incoming value from pin V1 to a
variable
// You can also use:
// String i = param.asStr();
// double d = param.asDouble();
Serial.print("V1 Slider value is: ");
Serial.println(pinValue);
}
BLYNK_WRITE(V2)
{
frwd = param.asInt(); // assigning incoming value from pin V1 to a variable
}
BLYNK_WRITE(V3)
{
revr = param.asInt(); // assigning incoming value from pin V1 to a variable
}
BLYNK_WRITE(V4)
{ enable = param.asInt(); // assigning incoming value from pin V1 to a variable
}
void loop()
{
Blynk.run();
// You can inject your own code or combine it with other sketches.
// Check other examples on how to communicate with Blynk. Remember
// to avoid delay() function!
if(enable==1)
{
if(frwd==1 && revr==0)
{
analogWrite(5,0);
analogWrite(6,pinValue);

2. Serial.println("forward");
}
if(frwd==0 && revr==1)
{
analogWrite(5,pinValue);
analogWrite(6,0);
Serial.println("reverse");
}
if(frwd==0 && revr==0)
{
analogWrite(5,0);
analogWrite(6,0);
}
if(frwd==1 && revr==1)
{
analogWrite(5,0);
analogWrite(6,0);
}
}
else{
analogWrite(5,0);
analogWrite(6,0);
}
}