EchoGlow is an ultrasonic distance monitoring system that uses a sensor to measure the distance of nearby objects. Three LEDs provide visual feedback, with green indicating a safe distance, amber indicating a moderate distance, and red indicating a close object. A buzzer sounds and flashes in sync with the active LED, providing both visual and audible alerts as objects move closer.
By moving the joystick along the X and Y axes, users can adjust the red, green, and blue color values in real time, creating a wide range of colors.