DFRobot FireBeetle ESP8266 Manual - Página 6

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Sample Code ‐ Blink

The default LED for FireBeetle Board-ESP8266 is D5 (IO2), input following code:

// GPIO 2 (D5) has a LED_BLINK attached to it. Give it a name:

int LED_BLINK = 2;

// the setup function runs once when you press reset or power the board

void setup() {

// initialize digital pin LED_BUILTIN as an output.

pinMode(LED_BLINK, OUTPUT);

}

// the loop function runs over and over again forever

void loop() {

digitalWrite(LED_BLINK, HIGH);

vel)

delay(1000);

digitalWrite(LED_BLINK, LOW);

LOW

delay(1000);

}

Note: ESP8266 has different pinmap in different development environment, For example: the LED

connects IO2, which maps D5 in Arduino IDE It is totally different mean with 2 and D2 !

Sample Code ‐ Scan WiFi

After you have installed the FireBeetle ESP8266 development environment, it will comes with a lot of

sample code in Arduino IDE, you can find them in File > Examples. The follow sample code scans

the around WiFi:

This sketch demonstrates how to scan WiFi networks.

The API is almost the same as with the WiFi Shield library,

the most obvious difference being the different file you need to include:

#include "ESP8266WiFi.h"

// turn the LED on (HIGH is the voltage le

// wait for a second

// turn the LED off by making the voltage

// wait for a second