Blinky with PlatformIO VS Code on ESP32-C3

Updated on 9 October 2023

dev board ESP32-C3-DevKitM-1

chip ESP32-C3-MINI-1-N4

features blinky led serial esp32c3 platformio

This tutorial is more than 1 year old. If the steps below do not work, then please check the latest versions and the documentations of the individual tools used.

Before starting

Dependancies

Ensure the following dependancies are downloaded and available:

PlatformIO IDE for VSCode

Pre-requisites

Try these simpler or similar examples:

Blinky with Arduino on ESP32-C3

Buy the components

ESP32-C3-DevKitM-1

Code

Download code src/main.cpp

#include <Arduino.h>

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, LOW);

  Serial.begin(115200);
  Serial.println("Start blinky");
}

void loop() {
  Serial.println("LED ON");
  digitalWrite(LED_BUILTIN, LOW);
  delay(200);

  Serial.println("LED OFF");
  digitalWrite(LED_BUILTIN, HIGH);
  delay(200);
}

Prototype

A photo of the actual setup.

Serial console

Serial output from the firmware.

Description

The on-board LED LED_BUILTIN is GPIO8 as defined in the pin out.

Compile and upload the firmware via the PlatformIO plugin on VS Code.

Create new project with PlatformIO on VS Code editor
Add the project name, board Espressif ESP32-C3-DevkitM-1, and Framework Arduino
Edit file src/main.cpp with blinky Arduino code
Edit platform.ini with configurations
Click Build ✅ to compile the code
Click Upload ➡️ to flash the firmware on the board
Click Serial monitor 🔌 to view the serial prints