Connecting 4 motors to l298 motor driver using nodemcu esp8266

Other Hardware Motors, Mechanics, Power and CNC
1

I'm creating a blynk controlled car toy that uses 4 dc motors connected to a L298 motor driver. I am using nodemcu esp8266 microcontroller. The circuit runs on a 9v power supply(rectangular battery).
The nodemcu isn't powering on when I am connecting my circuit to the 9v battery however the l298 motor driver is switching on but only the power led is switching on (on the l298 motor driver). When I am connecting the nodemcu to my laptop with a USB cable, the circuits working just fine, but my motors are still not rotating but just producing a whirring sound which reflects that the power is not enough. Please help me how:

  • I can power my nodemcu without the USB &

  • I can run my motors with adequate power.

CODE --

#define BLYNK_PRINT Serial
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

//Motor PINs
#define ENA D0
#define IN1 D1
#define IN2 D2
#define IN3 D3
#define IN4 D4
#define ENB D5

bool forward = 0;
bool backward = 0;
bool left = 0;
bool right = 0;
int Speed;
char auth[] = "Ayy69d8y5h-XLQZMHBocLX-NOWBN7SBk"; 
char ssid[] = "KUMAR"; 
char pass[] = "SRAVENKY@861614"; 


void setup() {
  Serial.begin(9600);
  pinMode(ENA, OUTPUT);
  pinMode(IN1, OUTPUT);
  pinMode(IN2, OUTPUT);
  pinMode(IN3, OUTPUT);
  pinMode(IN4, OUTPUT);
  pinMode(ENB, OUTPUT);

  Blynk.begin(auth, ssid, pass);
}

BLYNK_WRITE(V0) {
  forward = param.asInt();
}

BLYNK_WRITE(V1) {
  backward = param.asInt();
}

BLYNK_WRITE(V2) {
  left = param.asInt();
}

BLYNK_WRITE(V3) {
  right = param.asInt();
}

BLYNK_WRITE(V4) {
  Speed = param.asInt();
}


void smartcar() {
  if (forward == 1) {
    carforward();
    Serial.println("carforward");
  } else if (backward == 1) {
    carbackward();
    Serial.println("carbackward");
  } else if (left == 1) {
    carturnleft();
    Serial.println("carfleft");
  } else if (right == 1) {
    carturnright();
    Serial.println("carright");
  } else if (forward == 0 && backward == 0 && left == 0 && right == 0) {
    carStop();
    Serial.println("carstop");
  }
}
void loop() {
  Blynk.run();
  smartcar();
}

void carforward() {
  analogWrite(ENA, Speed);
  analogWrite(ENB, Speed);
  digitalWrite(IN1, LOW);
  digitalWrite(IN2, HIGH);
  digitalWrite(IN3, HIGH);
  digitalWrite(IN4, LOW);
}
void carbackward() {
  analogWrite(ENA, Speed);
  analogWrite(ENB, Speed);
  digitalWrite(IN1, HIGH);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, LOW);
  digitalWrite(IN4, HIGH);
}
void carturnleft() {
  analogWrite(ENA, Speed);
  analogWrite(ENB, Speed);
  digitalWrite(IN1, HIGH);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, HIGH);
  digitalWrite(IN4, LOW);
}
void carturnright() {
  analogWrite(ENA, Speed);
  analogWrite(ENB, Speed);
  digitalWrite(IN1, LOW);
  digitalWrite(IN2, HIGH);
  digitalWrite(IN3, LOW);
  digitalWrite(IN4, HIGH);
}
void carStop() {
  digitalWrite(IN1, LOW);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, LOW);
  digitalWrite(IN4, LOW);
}
2

Just get rid of that PP3 battery and use better things made for supplying current.
Please post schematics. Words like "connect" gives no real information.