FireBeetle ESP8266 IOT Microcontroller (Supports Wi-Fi) - แท้จาก DFRobot

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Board Overview

FireBeetle Board - ESP8266 is not only compatible with ESP8266 PinMap, but also make a special compatible with Arduino IDE PinMap. Dx (x=0,1,2,3...9)

• CHG Blink = not connect battery; Light on = Charging; Light off = Charge complete

 NOTE: NC = Empty; VCC = VCC (5V under USB power supply, Around 3.7V under 3.7V lipo battery.power supply)

Tutorial

In this tutorial, we'll show you some basic operation with FireBeetle-ESP8266 Microcontroller.

Requirements

• Hardware
  • FireBeetle ESP8266 IOT Microcontroller x 1
  • Micro USB Cable x1

• Software

  • Arduino IDE (newest), Click to Download Arduino IDE from Arduino®

  • Download CH340 FireBeetle ESP8266 Window Driver

 NOTE: CH340 driver is free to install for most of Windows OS, if you find there is no COM Port in Device Manager, please download the driver and install it.

Setup Arduino IDE Development Environment

• Plug FireBeetle to your computer, install the driver manually.
• Add FireBeetle Board URL to Arduino IDE
• Open Arduino IDE, File->Preferences, find Additional Boards Manager URLs, copy the below link, and paste in the blank.

For domestic users: http://download.dfrobot.top/FireBeetle/package_firebeetle8266_index.json

For overseas users: https://raw.githubusercontent.com/DFRobot/FireBeetle-ESP8266/master/package_firebeetle8266_index.json

File->Preferences

paste url here

• Click OK
• Open Tools->Board->Boards Manager, waiting automatic update. You'll find FireBeetle-ESP8266

Now, the development environment has been installed, you can use it like a normal Arduino board.

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); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(LED_BLINK, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}

 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"

void setup() {
Serial.begin(115200);

// Set WiFi to station mode and disconnect from an AP if it was previously connected
WiFi.mode(WIFI_STA);
WiFi.disconnect();
delay(100);

Serial.println("Setup done");
}

void loop() {
Serial.println("scan start");

// WiFi.scanNetworks will return the number of networks found
int n = WiFi.scanNetworks();
Serial.println("scan done");
if (n == 0)
Serial.println("no networks found");
else
{
Serial.print(n);
Serial.println(" networks found");
for (int i = 0; i < n; ++i)
{
// Print SSID and RSSI for each network found
Serial.print(i + 1);
Serial.print(": ");
Serial.print(WiFi.SSID(i));
Serial.print(" (");
Serial.print(WiFi.RSSI(i));
Serial.print(")");
Serial.println((WiFi.encryptionType(i) == ENC_TYPE_NONE)?" ":"*");
delay(10);
}
}
Serial.println("");

// Wait a bit before scanning again
delay(5000);
}

Open your Arduino IDE serial monitor: