Двухслойная печатная плата 50 × 20 мм в KiCad с 3D-рендерами

Build a small sensor-board design project in KiCad starting from a supplied schematic PDF. Redraw the schematic so it follows the PDF's layout and style, change only the sensor-interface section the user specifies, and keep every other part and connection unchanged. Review component datasheets and run the electrical rules check. Then lay out and route a 50 x 20 mm two-layer PCB with four corner mounting holes, a four-pin connector on one short edge, a microcontroller, a few small ICs, a boot button and labelled test pads. Use a dark green solder mask with silk-screen labels. Finish by running the design rule check until it reports zero violations, and export a 3D board render plus front and mirrored back layout views. Deliver the KiCad project, the schematic PDF and the renders, with a short note listing unresolved checks and the fact that hardware testing has not yet been done.