VOICE CONTROLLED VEHICLE USING MQTT SERVER

The voice-controlled vehicle was createdto make human work easier, since we live in an artificialintelligence-driven world where robots perform manytasks. The human voice is used to drive the vehicle. A stableandroid mobile application built with android studiosoftware transmits the speech. It's essentially a Wi-Fi link.Using the mobile application, we can operate the vehiclewith our voice from anywhere. The NodeMCU IoTframework is free and open source. It includes firmware forthe ESP8266 Wi-Fi module, a Espressif Systems SoC, andESP-12 module hardware. With the application that hasbeen created, human work may become simpler. Since thevehicle will be linked to Wi-Fi, we will be able to access itfrom any location in our project. He or she will use theAndroid application to send commands or voice commandssuch as forward, backward, left, right, left forward, leftbackward, right forward, right backward, and rightforward, right backward. The pins have been connected tothe NodeMCU esp8266, and the code to control the car hasbeen written. When an object or vehicle inhibits the car'smovement, an ultrasonic sensor is used to stop it. The voiceis recognised and forwarded to the HiveMQ server, whereit is processed. HiveMQ's MQTT broker is optimised forcloud native deployments to take advantage of cloudresources. The use of MQTT reduces the amount ofbandwidth used to transport data across the network. Lowoverall operating costs are a result of efficient IoT solutions.The hivemq server receives the command from the Androidapplication and sends it to the NodeMCU microcontroller,which programmes the code to drive the vehicle. The voicecontrolled robot vehicle project has military, surveillance,and human applications in scope. It's a voice-activatedwireless robot vehicle. The project's main goal is to guidethe robotic vehicle to a specific location. In addition, theproject's main goal is to use voice to control the robot. It isnow possible to have