ideaspark ESP32 with 1.9" LCD exploded view

Turn it, pull it apart, and tap any part to see what it does. Outer size: 31.5 x 63.8 x 13.6 mm.

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Parts

What's inside the ideaspark ESP32 with 1.9" LCD

Simplified model. Outer size to scale; inside parts are approximate.

LCD cover glassCover glass
A thin glass layer over the LCD. There is no touch layer on this board.
1.9" color LCDScreen
A 1.9 inch color LCD, 170 by 320 pixels, driven by an ST7789 controller. Muse shows status and draws images straight to it.
Circuit boardCircuit board
A bare circuit board with no case. The screen, the chips and the pins all sit on this one board.
BOOT buttonButton
Press BOOT to confirm pairing. Hold it for 5 seconds to reset setup.
USB-C portPort
USB-C for power and data. Use a cable that carries data, not just power, when you flash Muse.
ESP32 chip (D0WD-V3)Chip
A classic ESP32: two cores at 240 MHz with Wi-Fi and Bluetooth. It has no PSRAM, so there is no home-network tunnel, but Muse can still reach and control it.
16 MB flash memoryChip
16 MB of flash memory holds the Muse firmware.
CH340 USB-to-serial chipChip
The CH340 turns USB into a serial port for flashing. It shows up as /dev/cu.usbserial-*, /dev/cu.wchusbserial* or /dev/ttyUSB*.
Pin header (left)Port
A row of pins along the long edge for jumper wires or a breadboard.
Pin header (right)Port
The second row of pins. Muse only needs the USB cable, so the pins are free for your own wiring.

Size

Numbers marked approximate are estimates; everything else comes from the linked page or drawing.

Side	Size	Source
Width	31.5 mm	manuals.plusListed as 1.24 in.
Height	63.8 mm	manuals.plusListed as 2.51 in.
Thickness	13.6 mm (approx.)	manuals.plusNot published. Estimate: LCD module, 1.6 mm PCB and soldered pin headers.