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27 lines
740 B
27 lines
740 B
/*
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ESP 32 Blink
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Turns on an LED on for one second, then off for one second, repeatedly.
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The ESP32 has an internal blue LED at D2 (GPIO 02)
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*/
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// int LED_BUILTIN = 02; // this var is defined in pins_arduino.h for DOIT ESP32 DEVKIT V1
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void setup()
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{
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// this code run only once:
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pinMode(LED_BUILTIN, OUTPUT);
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//serial monitor setup
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Serial.begin(115200);
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}
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void loop()
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{
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Serial.print("Hello");
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digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
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delay(250); // wait for 0.250 seconds
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Serial.print(" World!!\n");
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digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
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delay(250); // wait for 0.250 seconds
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}
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