circuit diagram
pin connection
- gnd -- Gnd
- vcc -- 5v
- in1 --gpio21
- in2 --gpio22
- in3 --gpio25
- in4 --gpio26
#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
char auth[] = "blynk auth";
// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "wifiName";
char pass[] = "wifi-password";
void setup()
{
// Debug console
Serial.begin(9600);
Blynk.begin(auth, ssid, pass);
}
void loop()
{
Blynk.run();
}
youtube tutorial:
1.led1--2
2.led2--3
3.led3--4
4.ir module --5
code:
int rled= 2;
int gled= 3;
int bled= 4;
int ir= 5;
void setup() {
// put your setup code here, to run once:
pinMode(rled,OUTPUT);
pinMode(gled,OUTPUT);
pinMode(bled,OUTPUT);
pinMode(ir,INPUT);
}
void loop() {
// put your main code here, to run repeatedly:
int irv = digitalRead(ir);
if(irv == 0)
{
digitalWrite(rled,LOW);
digitalWrite(gled,LOW);
digitalWrite(bled,LOW);
}
else
{
digitalWrite(rled,HIGH);
delay(1500);
for(int i=0;i<10;i++)
{
digitalWrite(gled,HIGH);
delay(1000);
digitalWrite(gled,LOW);
delay(1000);
}
digitalWrite(bled,HIGH);
delay(1600);
}
}
youtube video:
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