Chapter 6. Building Voice-Controlled NodeBots
In this chapter, you will learn how to build a voice control for your NodeBot projects, from a basic controller using a microphone and loud sounds to a more advanced approach using speech recognition systems and an Android Wearable.
Initially, we will create a relay circuit that will be controlled with Johnny-Five, then we will create a microphone preamplifier circuit that will enable us to control the relay using loud sounds (see Figure 6-1). This approach will be useful if we are near our relay circuit. Then we will create a Node.js server that will respond to voice commands through real-time WebSockets and a REST API. At the end, we will see how to use other devices to interact ...
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