Capsicum

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

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

#define LED 3

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

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

  pinMode(LED, OUTPUT);
  pinMode(BATTERY_ENABLE_PIN, HIGH);

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

  Serial.println("Server started");
  Serial.print("Battery Analog level: ");
  Serial.println(measureBatteryVoltage());
}

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

  if (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);
  }
}

# Description: Makefile for the demo code
# Usage: make [lint] [compile] [upload] [clean]
BOARD := esp32:esp32:esp32c3:CDCOnBoot=cdc
PORT ?= /dev/cu.usbmodem1410*
BUILD = build

.PHONY: default lint compile upload clean

default: lint compile upload clean

lint:
	cpplint --extensions=ino --filter=-legal/copyright,-runtime/int,-readability/todo *.ino

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

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

clean:
	rm -rf build