Help with on fauxmo.onSetState function

Original report by Lucas Schirmer (lucs) (Bitbucket: [L S](https://bitbucket.org/L S), ).

I tried to run a simple blink function in the standard example. Device detection runs demo, unfortunately the LED is just switching on and not running the whole blink function. Any idea what I'm doing wrong?

#!arduino

#include <Arduino.h>
#ifdef ESP32
#include <WiFi.h>
#else
#include <ESP8266WiFi.h>
#endif
#include "fauxmoESP.h"
#include "credentials.h"

#define SERIAL_BAUDRATE                 115200
#define LED                             2

fauxmoESP fauxmo;
// -----------------------------------------------------------------------------
// Wifi
// -----------------------------------------------------------------------------

void wifiSetup() {

  // Set WIFI module to STA mode
  WiFi.mode(WIFI_STA);

  // Connect
  Serial.printf("[WIFI] Connecting to %s ", WIFI_SSID);
  WiFi.begin(WIFI_SSID, WIFI_PASS);

  // Wait
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
    delay(100);
  }
  Serial.println();

  // Connected!
  Serial.printf("[WIFI] STATION Mode, SSID: %s, IP address: %s\n", WiFi.SSID().c_str(), WiFi.localIP().toString().c_str());

}

void blink() {
  for (int i = 0; i <= 5; i++) {
    digitalWrite(LED, HIGH);
    delay(500);
    digitalWrite(LED, LOW);
    delay(500);
  }
}

void setup() {

  // Init serial port and clean garbage
  Serial.begin(SERIAL_BAUDRATE);
  Serial.println();
  Serial.println();

  // Wifi
  wifiSetup();

  // LED
  pinMode(LED, OUTPUT);
  digitalWrite(LED, HIGH);

  // You have to call enable(true) once you have a WiFi connection
  // You can enable or disable the library at any moment
  // Disabling it will prevent the devices from being discovered and switched
  fauxmo.enable(true);
  fauxmo.enable(false);
  fauxmo.enable(true);

  // You can use different ways to invoke alexa to modify the devices state:
  // "Alexa, turn light one on" ("light one" is the name of the first device below)
  // "Alexa, turn on light one"
  // "Alexa, set light one to fifty" (50 means 50% of brightness)

  // Add virtual devices
  fauxmo.addDevice("light 1");

  // fauxmoESP 2.0.0 has changed the callback signature to add the device_id,
  // this way it's easier to match devices to action without having to compare strings.
  fauxmo.onSetState([](unsigned char device_id, const char * device_name, bool state, unsigned char value) {
    Serial.printf("[MAIN] Device #%d (%s) state: %s value: %d\n", device_id, device_name, state ? "ON" : "OFF", value);
    blink();
  });

}

void loop() {

  // Since fauxmoESP 2.0 the library uses the "compatibility" mode by
  // default, this means that it uses WiFiUdp class instead of AsyncUDP.
  // The later requires the Arduino Core for ESP8266 staging version
  // whilst the former works fine with current stable 2.3.0 version.
  // But, since it's not "async" anymore we have to manually poll for UDP
  // packets
  fauxmo.handle();

  static unsigned long last = millis();
  if (millis() - last > 5000) {
    last = millis();
    Serial.printf("[MAIN] Free heap: %d bytes\n", ESP.getFreeHeap());
  }

}

vintlabs / fauxmoESP

Help with on fauxmo.onSetState function #72