simple esp32 AP/client code for testing range

esp-mini-wifi.cpp

#include <Arduino.h>
#include <WiFi.h>

#define AP 1

#ifdef AP
void setup()
{
	IPAddress ip;

	Serial.begin(115200);
	Serial.println();
	delay(10);

	Serial.print("Setting soft-AP ... ");
	boolean result = WiFi.softAP("Chrono", "chrono-slalom");
	if(result == true)
	{
		Serial.println("Ready");
	}
	else
	{
		Serial.println("Failed!");
	}

	pinMode(2, OUTPUT);
	digitalWrite(2, LOW);

	ip = WiFi.softAPIP();
	Serial.println(ip);
}

void loop()
{
	int nb = WiFi.softAPgetStationNum();

	if (nb > 0)
		digitalWrite(2, HIGH);
	else
		digitalWrite(2, LOW);
	Serial.print("Stations connected = ");
	Serial.println(WiFi.softAPgetStationNum());
	delay(3000);
}
#else
void setup()
{

	Serial.begin(115200);
	Serial.println();
	delay(10);

	Serial.println("Connecting to AP...");
	WiFi.mode(WIFI_STA);
	WiFi.begin("Chrono", "chrono-slalom");
	while (WiFi.status() != WL_CONNECTED) {
		delay(500);
		Serial.print(".");
	}
	Serial.println(" Connected");
	WiFi.setAutoConnect(true);
	pinMode(2, OUTPUT);
	digitalWrite(2, LOW);
}

void loop()
{
	uint32_t m = millis();

	Serial.print(m);
	if (WiFi.isConnected()) {
		Serial.println(" - connected");
		digitalWrite(2, HIGH);
	}
	else {
		Serial.println(" - not connected");
		digitalWrite(2, LOW);
		Serial.println("  Trying to reconnec...");
		WiFi.reconnect();
	}
	delay(1000);
}

#endif