Arduino Wifi Redback




About: I am an electrical engineer and an Arduino and electronics enthusiasts. I believe working with electricity should be fun as well as beneficial to engineers and the world at large. Twitter handle: @arduinoha...

Adding wireless capabilities to a project normally entails attaching other boards onto your arduino, which increases the size of your gadget. This has been a headache to many hardware developers for a long time. However, now you can all sigh in relief, because the arduino wifi redback has come to the rescue.

The arduino redback is a small board that incorporates a wifi module and an arduino nano. It is double sided. One side has the wifi module and the other has the arduino nano.

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Step 1: Parts of the Redback

  • reset button – for resetting the board
  • I/O LED – a green LED that lights up to indicate digital input and output on wifi module
  • WiFi LED – a green LED that lights up to indicate that the wifi module is connected to a router or hotspot
  • Power LED – a red LED that lights up when the board is powered up
  • WiFi module – gives the board wireless capabilities

Step 2: Programing the Redback

The redback has no USB port. Therefore, you have to use an FT232RL breakout board to program it. When connecting the USB breakout to the redback it is important to ensure you match the pins as shown below

Redback—USB breakout






Step 3: Library

Before, proceeding to write code, you have to download the wifi redback library. You can get it from here.

Extract and rename the library then copy it to the arduino libraries folder as described here.

After doing that, you can upload some of the examples and see what they do. For more information on the arduino wifi redback go to this page.

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    10 Discussions


    3 years ago

    All your link are broken, can you update it ?

    Chaplain DaveS

    3 years ago

    For anyone wanting an Arduino with WiFi, consider the Espduino, which is an Arduino board with an ESP8266 WiFi chip on board. I just ordered one from Banggood for US$9.25 with free shipping.

    Which version of the Arduino IDE did you use for this project? I have had this device for quite a while and got it to work with an example project about a year ago, but now it will no longer compile new code.

    2 replies

    use arduino 1.0.5.
    Later versions of arduino IDE handle progmem commands differently. I will try and editing the library so that it can be compatible with the latest IDEs.

    Thank you. Do you have an example of a code that actually DOES something other than the CuHead examples? For example to control an LED? I have been unable to find any information of someone actually using the redback in a project.


    Reply 4 years ago on Introduction

    Can I stream audio using this? Example, I get speech from a microphone and would like to stream it over wifi to another device like a mobile at another location.


    Reply 4 years ago on Introduction

    I guess you can. Though i havent tried it. Please check out this tutorial and see if it offers any insight to the matter.


    5 years ago on Introduction

    is this easy to interface with Android phones?
    The only thing that I want this Redback will do is to send data to android through wifi connection. The data is the reading from UV sensor.

    thanks for this.