README.md

Blink Project

This Arduino project demonstrates how to blink an LED using the ESP32-C3 super tiny module. The LED will turn on for two seconds and then off for one second, repeatedly.

Schematic

The LED is connected to pin 8 as per the schematic below.

Components

• ESP32-C3 super tiny module
• LED
• Resistor (220 ohms)
• Breadboard and jumper wires

Code Explanation

The code initializes the built-in LED pin (pin 8) as an output and then enters a loop where the LED is turned on for two seconds and off for one second.

#define LED_BUILTIN 8 // Internal LED pin is 8 as per schematic

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, LOW);   // turn the LED on (LOW because the LED is inverted)
  delay(2000);                      // wait for two seconds
  digitalWrite(LED_BUILTIN, HIGH);  // turn the LED off by making the voltage HIGH
  delay(1000);                      // wait for a second
}

Instructions

1. Connect the ESP32-C3 module to your computer using a USB cable.
2. Open the Arduino IDE and load the provided blink.ino file.
3. Ensure the correct board and port are selected in the Arduino IDE.
4. Upload the code to the ESP32-C3 module.
5. Observe the LED blinking on and off as per the code.

Result

Notes

• Ensure you have the ESP32 board package installed in your Arduino IDE.
• If the LED does not blink, double-check the connections and the pin number defined in the code.