I use a Relay module connected to Raspberry's GPIO pins. Using speech recognition to translate speech to text. - Based on the text result, turn On/Off the light or fan ... - You also can control whatever you want, such as opening a website, triggering a camera, opening a photo, opening a youtube video ... Hardware used in this video: - Relay module: - 7 " LCD with touch: - Raspberry pi4 8G RAM: - USB Audio: - Microphone: - Speaker: Code: © Copyright by Relax Tech quangthanh010290@ #RelaxTech