sparkfun MicroMod ESP32 - Page 14

Having a hard time seeing? Click the image for a closer look.
Then select your serial port under the Tools > Port menu.
Having a hard time seeing? Click the image for a closer look.
You can also select the Upload Speed: "921600" baud -- the fastest selectable rate -- will get the code loaded
onto your ESP32 the fastest, but may fail to upload once-in-a-while. (It's still way worth it for the speed increase!)
Loading Blink
To make sure your toolchain and board are properly set up, we'll upload the simplest of sketches -- Blink! The
STAT LED on the ESP32 Processor Board is perfect for this test. This is also a good time to test out serial
communication. Copy and paste the example sketch below into a fresh Arduino sketch:
int ledPin = 2;
void setup()
{
pinMode(ledPin, OUTPUT);
Serial.begin(115200);
}
void loop()
{
Serial.println("Hello, world!");
digitalWrite(ledPin, HIGH);
delay(500);
digitalWrite(ledPin, LOW);
delay(500);
}