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The interactive extension board consists of an electret microphone, an IR-Proximity sensor, a 3-axis accelerometer, and RGB led and a driver chip for interfacing RGB led strip. The interactive extension board is divided into two parts bridged by cables. One of the boards accommodates the sensors while the other board stacks over the Bela and contains the strip LED driver. Most of the modules are available in the form of break-out boards with standard 2.54mm pitch that can be for prototyping over perfboard, however, alternatively a single PCB can be fabricated to reduce time, get rid of unnecessary dangling wires and making the overall circuit more stable and robust.