Raspberry Pi Pico Relay Board can control up to 4 appliances and loads up to 250V AC@ 7A, 30V DC@ 10A. It provides a way for the users to control the high voltage/current devices. Our research and development team built the Raspberry Pi Pico Relay Board to enhance the intelligence of the appliances. It comprises an “Optocoupler” that allows the circuit to transmit an electrical signal between two isolated circuits through light energy. The Optocouplers work to prevent the high voltages in one part of the circuit from affecting the other part of the circuit. It gives safety to the system that would save money, time, and resources for the user. There are relay control jumpers that allow the user to control the relays by custom pins other than the default pins.