Pixeldust

hackclub·pixeldust·submissions/LEDial/pixeldust.kicad_pcb

About the Pixeldust PCB

Pixeldust is an open source ESP32 PCB design by hackclub, published on GitHub. It is a 2-layer board measuring 99.6 × 99.6 mm, with 110 components from 15 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the NCP1117-3.3_SOT223. By type, the board carries 85 diodes, 9 connectors, 7 resistors, 6 capacitors, 2 ICs and 1 switch.

It belongs with the displays & leds designs in this gallery, and the repository also holds 2 earlier revisions of it.

From the project

Wokwi link: https://wokwi.com/projects/428315472209826817

I have always been fascinated by thermostats, especially ones by NEST. I was wondering if I could make something similar, but for different information, with larger LEDs instead of a display.

I learned PCB design from hackpad/hackboard. I am super proud of the wiring on the back layer as well as the alignment of the rotary encoder.

Pixeldust, from the project README — From the project README

Main components on the Pixeldust

ESP32-S3-WROOM-1 NCP1117-3.3_SOT223

Pixeldust bill of materials (BOM)

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

Qty	Part	Footprint	Refs
1	ESP32-S3-WROOM-1	ESP32-S3-WROOM-1	U1
1	NCP1117-3.3_SOT223	SOT-223-3_TabPin2	U2
1	USB_C_RECEPTACLE_USB2.0_14P USB_C_Receptacle_USB2.0_14P	USB_C_Receptacle_XKB_U262-16XN-4BVC11	J1
1	CONN_01X03_SOCKET Conn_01x03_Socket	PinHeader_1x03_P2.54mm_Vertical	J2
1	CONN_01X03_PIN Conn_01x03_Pin	PinHeader_1x03_P2.54mm_Vertical	J3
1	CONN_01X02_PIN Conn_01x02_Pin	PinHeader_1x02_P2.54mm_Vertical	J4
1	CONN_01X02_SOCKET Conn_01x02_Socket	PinHeader_1x02_P2.54mm_Vertical	J5
4	CONN_01X04 Conn_01x04	PinHeader_1x04_P2.00mm_Vertical	J6, J7, J8, J9
1	RotaryEncoder_Switch	RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm	SW1
85	WS2812B	LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm	D1, D2, D3, D4, D5, D6, D7, D8 +77
5	1u	C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C1, C2, C3, C4, C5
1	10U 10u	C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C6
5	5.1K	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R1, R2, R5, R6, R7
1	100N 100n	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R3
1	10K 10k	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R4

Pixeldust design files

The KiCad project lives in the hackclub/pixeldust repository on GitHub; these links point at the commit this page was built from.

Layoutsubmissions/LEDial/pixeldust.kicad_pcb
Schematicsubmissions/LEDial/pixeldust.kicad_sch
BOMsubmissions/LEDial/bom.csv

Pixeldust: common questions

What microcontroller does the Pixeldust use?

The Pixeldust is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the Pixeldust PCB?

The Pixeldust measures 99.6 × 99.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pixeldust?

110 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 Pixeldust design files?

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