8 Channel Relay Board FOR ESP32 30 pin DEVKIT V1 5V 8CH ET6267

• ESP32 DEVKIT V1 NOT INCLUDED

• Size -101.5Lx75Wx19H mm

• Support ESP32 DEVKIT V1 30 PIN Development Board

• RELAY PINS 23 ,22,21,19.32,33,25,26

• SUPPLY VOLTAGE 5V 2A DC (ONLY Works if power given in green connector)

• Xinya make (XY128) 15A High quality terminal block connector

• INBUILT RESETTABLE PPTC FUSE & TVS DIODE

• 100uF ceramic capacitor across 5V and 3.3V

• 1000uF electrolytic capacitor across 5V

• Reverse Polarity protection

• Opto isolated signal pins

• Double side PCB

• MADE IN INDIA

Sample code

// SELECT ESP32 Dev Module
//// relay pins
#define relay1 23
#define relay2 22
#define relay3 21
#define relay4 19
#define relay5 32
#define relay6 33
#define relay7 25
#define relay8 26
void setup()
{
// initialize RELAY pins as an output.
pinMode(relay1, OUTPUT);
pinMode(relay2, OUTPUT);
pinMode(relay3, OUTPUT);
pinMode(relay4, OUTPUT);
pinMode(relay5, OUTPUT);
pinMode(relay6, OUTPUT);
pinMode(relay7, OUTPUT);
pinMode(relay8, OUTPUT);
digitalWrite(relay1, HIGH);
digitalWrite(relay2, HIGH);
digitalWrite(relay3, HIGH);
digitalWrite(relay4, HIGH);
digitalWrite(relay5, HIGH);
digitalWrite(relay6, HIGH);
digitalWrite(relay7, HIGH);
digitalWrite(relay8, HIGH);
timer();
digitalWrite(relay1, LOW);
digitalWrite(relay2, LOW);
digitalWrite(relay3, LOW);
digitalWrite(relay4, LOW);
digitalWrite(relay5, LOW);
digitalWrite(relay6, LOW);
digitalWrite(relay7, LOW);
digitalWrite(relay8, LOW);
timer();

}

// the loop function runs over and over again forever
void loop()
{
digitalWrite(relay1, HIGH);
timer();
digitalWrite(relay1, LOW);
digitalWrite(relay2, HIGH);
timer();
digitalWrite(relay2, LOW);
digitalWrite(relay3, HIGH);
timer();
digitalWrite(relay3, LOW);
digitalWrite(relay4, HIGH);
timer();
digitalWrite(relay4, LOW);
digitalWrite(relay5, HIGH);
timer();
digitalWrite(relay5, LOW);
digitalWrite(relay6, HIGH);
timer();
digitalWrite(relay6, LOW);
digitalWrite(relay7, HIGH);
timer();
digitalWrite(relay7, LOW);
digitalWrite(relay8, HIGH);
timer();
digitalWrite(relay8, LOW);
}

void timer(void)
{
delay(500);
}