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You're reading from  Learn Robotics Programming - Second Edition

Product typeBook
Published inFeb 2021
PublisherPackt
ISBN-139781839218804
Edition2nd Edition
Concepts
Robotics
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Danny Staple
Danny Staple
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Danny Staple

Danny Staple builds robots and gadgets as a hobbyist, makes videos about his work with robots, and attends community events such as PiWars and Arduino Day. He has been a professional Python programmer, later moving into DevOps, since 2009, and a software engineer since 2000. He has worked with embedded systems, including embedded Linux systems, throughout the majority of his career. He has been a mentor at a local CoderDojo, where he taught how to code with Python. He has run Lego Robotics clubs with Mindstorms. He has also developed Bounce!, a visual programming language targeted at teaching code using the NodeMCU IoT platform. The robots he has built with his children include TankBot, SkittleBot (now the Pi Wars robot), ArmBot, and SpiderBot.
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Adding sound input and output to the Raspberry Pi

Before we can use a voice processing/voice assistant, we need to give the Raspberry Pi some speakers and a microphone. A few Raspberry Pi add-ons provide this. My recommendation, with a microphone array (for better recognition) and a connection to speakers, is the ReSpeaker 2-Mics Pi HAT, which is widely available.

The next photograph shows the ReSpeaker 2-Mics Pi HAT:

Figure 15.1 – The ReSpeaker 2-Mics Pi HAT

Figure 15.1 shows a photo of a ReSpeaker 2-Mics Pi HAT mounted on a Raspberry Pi. On the left, I've labeled the left microphone. The hat has two microphones, which are two tiny rectangular metal parts on each side. The next label is for 3 RGB LEDs and a button connected to a GPIO pin. After this are the two ways of connecting speakers – a 3.5mm jack or a JST connector. I recommend you connect a speaker to hear output from this HAT. Then, the last label highlights the right microphone...

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Learn Robotics Programming - Second Edition
Published in: Feb 2021Publisher: PacktISBN-13: 9781839218804
© 2021 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Danny Staple

Danny Staple builds robots and gadgets as a hobbyist, makes videos about his work with robots, and attends community events such as PiWars and Arduino Day. He has been a professional Python programmer, later moving into DevOps, since 2009, and a software engineer since 2000. He has worked with embedded systems, including embedded Linux systems, throughout the majority of his career. He has been a mentor at a local CoderDojo, where he taught how to code with Python. He has run Lego Robotics clubs with Mindstorms. He has also developed Bounce!, a visual programming language targeted at teaching code using the NodeMCU IoT platform. The robots he has built with his children include TankBot, SkittleBot (now the Pi Wars robot), ArmBot, and SpiderBot.
Read more about Danny Staple

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