Voice and Google Assistant Control Universal Remote For TV & AC

This smart universal remote system bridges modern voice processing with traditional infrared (IR) appliance control using a dual-controller architecture powered by a Raspberry Pi 5 and an Arduino board. The Raspberry Pi runs a Python-based software stack leveraging PyAudio and SpeechRecognition to capture and interpret vocal commands, optionally integrating with Google Assistant. Once a valid voice command is parsed, the Raspberry Pi transmits the corresponding control instruction over a serial interface via PySerial to the Arduino board. The Arduino acts as the hardware-level executor, running an Infrared library to modulate data signals. It drives an attached IR LED to emit specific infrared light patterns that mimic the original handheld remotes for your television or air conditioner. Conversely, the system can also learn new remote signals using an IR receiver (TSOP) connected to capture incoming carrier frequencies and pulse trains. Connecting wires complete the low-voltage circuitry between the microcontrollers and the optical components, creating an end-to-end pipeline that translates spoken intent into physical IR light pulses.