Muse round AMOLED gadget: KiCad project (rev A, work in progress)

Open round_display/round_display.kicad_pro in KiCad 9 or 10.

Status

• ERC: 0 errors. DRC: 0 violations. Schematic/PCB parity: OK.
• 4 connections still unrouted. Do not order yet.
  • I2S_DOUT: U1 pad 12 to U3 pad 9
  • MIC2_N: C41 to U4 pad 20
  • VBAT: C8 to U2 pad 33
  • VSYS: U2 pad 17 to the VSYS track on In2
• Route them in KiCad (press X on the ratsnest line) and run DRC before ordering.

Board

• Ø46 mm, 4 layers, 1.0 mm thick, ENIG.
• Blue mask, white silk. Choose blue when ordering; JLCPCB ignores the colour in the file.
• All parts are on the top side. The 1.75" CO5300 AMOLED is taped to the back, and its 31-pin FPC wraps into J3 (Hirose FH26W-31S-0.3SHW).
• Firmware: stock muse-gadget-sdk, tools/muse/board.sh build s3n (Waveshare ESP32-S3-Touch-AMOLED-1.75 pin map).

Contents

• round_display/: schematic, PCB, project libraries.
  • lib/3d: generated 3D models, including the display and its flex.
• round_display/fab/: Gerber+drill zip, JLC BOM (LCSC codes), JLC CPL, schematic PDF.
  • These are out of date until the 4 nets are routed; regenerate after routing.
• renders/: 3D renders.
• viewer/: interactive 3D viewer. Run python3 -m http.server -d viewer 8792 and open http://localhost:8792/?board=round_display

Check before ordering

• Mic pads (GMI4015-2C) are estimated from the datasheet image; verify them against the real part.
• FH26 pinout copied from Waveshare's J3; confirm it against your panel's datasheet.
• Muse logo and Jolly artwork: Meta trademarks; personal use only.