For this project, you will need to laser cut two boxes. In one, you will put in a slide potentiometer, and an ESP32 feather board that is coded to receive the signal from the slide potentiometer, and send its value to another ESP32 feather board. The other ESP32 board will be in the other box, connected to a servo. The second ESP32 feather board will need to receive the signal from the other board, and then send the value to the servo. The servo is connected to a gear on a rail, connected to a slider design, which can show where on the gradient the user is.