Computer Controlled Letter Writing Robotic Arm Using Speech Recognition

In this research paper, we propose a robotic arm for writing using speech recognition, which uses a stepper motor and a NodeMCU. The robotic arm is capable of being controlled through voice commands, allowing it to write texts and draw images on paper. The stepper motor controls the arm's movements, while the NodeMCU acts as the microcontroller, responsible for interpreting voice commands and controlling the motor. The voice is recorded using an Android application, and then it is converted to text using a speech recognition Natural Language Processing Model. Through a Firebase database, this translated text is forwarded to Nodemcu. We have tested the accuracy and precision of the system, and the results are promising.