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Arduino

Using ESP-WROOM-02 Wifi Module As Arduino MCU

Device Plus Editorial Team
Published by Device Plus Editorial Team at January 9, 2018
Categories
  • Arduino
Tags
  • Arduino
  • esp-wroom-02
  • led
  • mcu

esp-wroom-02

Using ESP-WROOM-02 Wifi module as Arduino MCU

In this tutorial, we will write Arduino program to ESP-WROOM-02 so we can use the wifi module as an Arduino MCU. From this time on, we will be using ESP-WROOM-02 development board which we can easily try ESP – WROOM – 02 we introduced in the previous installment.

 

Today’s Electronic Recipe

Estimated time to complete: 60 minutes

Parts needed:

  • ESP-WROOM-02 Development Board 1,2,3,etc.
  • Breadboard
  • LED (3 mm green) 1,2,3,etc.
  • Resistor 220 Ω
  • CdS optical sensor (5 mm)

 

Download Arduino IDE

First, in order to use ESP-WROOM-02 as Arduino, we need to make sure we’re using the proper version of Arduino IDE. In the past, Arduino IDE used to be released from two separate websites: arduino.cc and arduino.org. To use ESP-WROOM-02, please install the Arduino IDE released from arduino.cc. (Now the two websites are sort of merged so when you go to arduino.org, you will be redirected to arduino.cc.)

esp-wroom-02

Figure 1. Arduino IDE download screen from arduino.cc

Add ESP-WROOM-02 to Arduino

To use ESP-WROOM-02 as Arduino, you need to add the ESP-WROOM-02 board to  Arduino IDE. Follow the steps below to add ESP-WROOM-02 to Arduino.

  1. Start the Arduino IDE.
  2. Open “File” → “Preferences”
  3. Under “Preferences,” enter the following URL in “Additional Boards Manager URLs:”

URL: http: //arduino.esp8266.com/stable/package_esp8266com_index.json

Distributor: https: //github.com/esp8266/Arduino

This is an administration manager function that you can use to easily add new boards to Arduino by entering the URL describing the board information.

 

esp-wroom-02

Figure 2. Arduino IDE preference screen

 

  1. After entering the URL, click “OK” at the bottom right corner of the “Preferences” screen and close it. Next, select “Tools” → “Board” → “Boards Manager”.

 

esp-wroom-02

Figure 3. “Tools” → “Board” → “Boards Manager”

 

  1. Once the board manager screen is displayed, enter “ESP 82” in the search field. It will be displayed as ESP8266. Since this ESP8266 is a board corresponding to ESP-WROOM-02, press “Install” to add a board.

 

esp-wroom-02

Figure 4. Boards Manager Screen

 

  1. After the installation is completed, restart Arduino, and open “Tools” → “Board” once again. If you see a set of boards related to ESP8266 added, then it’s done!
esp-wroom-02

Figure 5. Adding ESP8266

Now that the preparation is complete, let’s write an Arduino program!

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Device Plus Editorial Team
Device Plus Editorial Team
Device Plus is for everyone who loves electronics and mechatronics.

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