Creating a Siri clone with an Arduino Yún

An Arduino Yún can act just like Siri, allowing users to ask it a question and get an audio response.

Over the years, voice control applications have risen in popularity with programs like Siri, Alexa, Cortana, and “OK Google” revolutionizing the way in which people interact with their mobile devices. With this in mind, Maker Bob Hammell decided to recreate the capabilities of Apple’s intelligent personal assistant using an Arduino.


An Arduino Yún (ATmega32U4) was chosen to mimic Siri, enabling users to ask it a question and to receive an audio response moments later. A Proto Shield with a pushbutton sits on top of the Internet-connected Arduino, while an audio interface plugged into the Yún’s USB socket is attached to a microphone and a battery-powered speaker.

Whenever the circuit’s pushbutton is pressed, the Arduino sketch running on the ATmega32U4 launches a Python script on the Atheros AR9331, which emits a tone promoting a user’s question. The inquiry is recorded through the microphone and saved as a WAV file. From there, the file is translated to text using AT&T’s Speech to Text API. This then gets passed into the WolframAlpha computational knowledge engine using the Temboo library, and upon receiving a response, calls another Linux command to share the answer through the speaker.

Interested? You can find out more about the project, including its source code and sketches, on the Maker’s detailed page here. Or, simply watch it in action below.

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