This directory contains the hardware designs for the ray component. All the designs are made using KiCad which is free and opensource software, you can download it here: www.kicad.org
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ray2: Is the latest version of the design, based on the RISC-V esp32c3 chip from espressif, with embedded 4MB flash.
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microdimmer: Is a small footprint version, based on ESP8266, using SMD components and a DC/DC regulator.
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base_prototype: This was the initial protpotype, based on ESP8266, using insertion components on a 2-layer PCB.