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Xmas orn

MRobertEvers·esp32-xmas·board/xmas_orn/xmas_orn.kicad_pcb

Xmas orn PCB layout, top view — open source ESP32 board by MRobertEvers

About the Xmas orn PCB

Xmas orn is an open source ESP32 PCB design by MRobertEvers, published on GitHub. It is a 2-layer board measuring 27.5 × 41.5 mm, with 20 components from 15 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N16R8, from the ESP32 family. Other key parts include the TLV75733PDBVR-MS. By type, the board carries 6 resistors, 4 diodes, 3 connectors, 3 capacitors, 2 ICs and 2 switches.

It belongs with the displays & leds and iot & wireless designs in this gallery.

From the project

ESP32 xmas display

ESP-IDF firmware for an ESP32-S3 driving a 240×240 ST7789 SPI LCD. It renders an animated Old School RuneScape model in software — no GPU, no PSRAM — using toridraw for the raster and rscache for the cache formats.

The model, its animation, its textures and toridraw's lookup tables are all baked into flash at build time. The device decodes nothing at boot.

Current subject: the Tree Gnome Village spirit tree (dat2 model 2851) playing entendseq, the idle that fades the orbs in its branches.

Main components on the Xmas orn

ESP32-S3-WROOM-1-N16R8TLV75733PDBVR-MS

Xmas orn bill of materials (BOM)

20 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1-N16R8
ESP32-S3-WROOM-1
U1
1
TLV75733PDBVR-MS
TLV75733PDBV
U2
1
HX PM2.54-1x7P ZC-Y
Conn_01x07_Socket
J1
1
DC-002
J2
1
TYPE-C-31-M-12
USB_C_Receptacle_USB2.0_16P
J3
1
B3U-1000P
RST
SW1
1
B3U-1000P
BOOT
SW2
2
19-217/R6C-AL1M2VY/6T
LED
D1, D2
2
B5819W
D3, D4
2
CL21A106KOQNNNE
10uF
C1, C2
1
CL10A105KA8NNNC
1uF
C3
2
RC0603FR-075K1L
5.1k
R1, R2
2
AC0603JR-0710KL
10k
R3, R4
1
RC0603JR-072KL
2k
R5
1
RC0603FR-07470RL
470
R6

Xmas orn design files

The KiCad project lives in the MRobertEvers/esp32-xmas repository on GitHub; these links point at the commit this page was built from.

Xmas orn: common questions

What microcontroller does the Xmas orn use?

The Xmas orn is built around the ESP32-S3-WROOM-1-N16R8, from the ESP32 family.

How big is the Xmas orn PCB?

The Xmas orn measures 27.5 × 41.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Xmas orn?

20 components, from 15 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Xmas orn design files?

From the MRobertEvers/esp32-xmas repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Xmas orn design in my own project?

The repository has no license, so all rights stay with MRobertEvers. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Xmas orn without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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