Design, Hardware, and Modular Assembly
NetBlocks have been design for fabrication in a laser cutter and modular assembly. Each NetBlock has a custom-made LED matrix for output, and a touchpad for input, made from an acrylic surface supported on four button switches. Each block uses four pairs of TX/RX magnetic contact pads to both snap and communicate with neighboring blocks. PCB design is modular consisting of four layers: 2 I/O layers, one layer for the microcontroller, and one layer for communication.