Access Point with Arduino on ESP32-C3

// https://raw.githubusercontent.com/espressif/arduino-esp32/990e3d5b431b63b4adc364b045a79afdad645a3f/libraries/WiFi/examples/WiFiAccessPoint/WiFiAccessPoint.ino

// The code below is an example of how to create an access point using the ESP32-C3. The code creates an access point with the SSID "hello" and password "12345678". The code then starts a server on port 80. When a client connects to the server, the server sends the message "Hello World!" to the client.

#include <WiFi.h>
#include <WiFiClient.h>
#include <WiFiAP.h>

#define LED 3

const char *ssid = "hello";
const char *password = "12345678";
WiFiServer server(80);

void setup() {
  Serial.begin(115200);
  Serial.println();
  Serial.println("Configuring access point...");

  pinMode(LED, OUTPUT);

  if (!WiFi.softAP(ssid, password)) {
    Serial.println("Soft AP creation failed.");
    while (1) {}
  }
  IPAddress myIP = WiFi.softAPIP();
  Serial.print("AP IP address: ");
  Serial.println(myIP);
  server.begin();

  Serial.println("Server started");
}

void handleClient(WiFiClient client) {
  Serial.println("New Client.");
  String currentLine = "";
  while (client.connected()) {
    if (client.available()) {
      digitalWrite(LED, HIGH);

      client.println("HTTP/1.1 200 OK");
      client.println("Content-type:text/html");
      client.println();

      client.print("Hello World!");

      client.println();
      break;
    }
  }
  client.stop();
  Serial.println("Client Disconnected.");
  digitalWrite(LED, LOW);
}

void loop() {
  WiFiClient client = server.accept();

  if (client) {
    handleClient(client);
  }
}

BOARD?=esp32:esp32:esp32c3
PORT?=/dev/cu.SLAB_USBtoUART*
BUILD=build

.PHONY: default lint all flash clean

default: lint all flash clean

lint:
	cpplint --extensions=ino --filter=-legal/copyright *.ino

all:
	arduino-cli compile --fqbn $(BOARD) --output-dir $(BUILD) ./

flash:
	arduino-cli upload --fqbn $(BOARD) --port $(PORT) --input-dir $(BUILD)

clean:
	rm -r build