The L401520 is a part of Cellevia, a line of hardware components specifically designed for creating artificial life. It is a 5-channel digital output module containing an oscillator, sound generators, and five control signal amplifiers. The module can be used to control various devices, including sound modules and robotics, via a digital signal from an external control system. It features five outputs, each with an adjustable frequency, plus adjustable signal levels, which can be used to accurately govern the speed of robot and sound module functionality.