HardLabs

RD56

lhm0·rotating_display_color·RD56c_electronics/RD56c/RD56.kicad_pcb

RD56 PCB layout, top view — open source RP2040/RP2350 board by lhm0
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About the RD56 PCB

RD56 is an open source RP2040/RP2350 PCB design by lhm0, published on GitHub under the CC-BY-NC-4.0 license. It is a 4-layer board measuring 120 × 118.5 mm, with 263 components from 44 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the TPS54202DDC, ESP32-S3, W25Q128JVS, USBLC6-2SC6 and MH253. By type, the board carries 122 capacitors, 60 diodes, 50 resistors, 17 ICs, 5 inductors and 4 switches.

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

From the project

56 LED rotating color display with RP2040 and ESP32 microcontrollers

The Rotating Color Display device comprises two primary units: a power supply unit and a display board (figure 1). Both are circular in design, with a diameter of 120mm, similar to the dimensions of a standard Compact Disk. The display board is rotated by a CD motor. Energy is wirelessly transmitted from the power supply unit to the display board, eliminating the need for wired connections.

RD56, from the project README
From the project README

Main components on the RD56

TPS54202DDCESP32-S3W25Q128JVSUSBLC6-2SC6RP2040MH253STP24DP05BTR

RD56 bill of materials (BOM)

263 components, 44 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
TPS54202DDC
U201, U202
1
~
U301
1
ESP32-S3
U302
2
W25Q128JVS
U303, U404
2
USBLC6-2SC6
U304, U401
1
RP2040
U402
1
MH253
U403
7
STP24DP05BTR
U501, U502, U503, U601, U602, U701, U702
1
C379787
40 MHz
Y301
1
12MHZ
12MHz
Y401
1
C5155564
Micro_SD_Card
J301
2
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
J302, J401
1
C5381238
boot
SW301
2
C5381238
reset
SW302, SW401
1
C5381238
USB boot
SW402
4
SS34
D201, D202, D203, D204
56
C513366
LED_BARG
D801, D802, D803, D804, D805, D806, D807, D808 +48
2
C177245
33µH
L201, L203
1
Coil
L202
2
2N2
2n2
L301, L302
Show 24 more
QtyPartRefs
31
100NF
100nF
C201, C203, C210, C212, C301, C304, C308, C309 +23
2
C13585
10µF, 50V
C202, C211
4
C12891
22µF, 25V
C204, C205, C213, C214
2
47PF
47pF
C206, C216
2
C45783
22µF, 25V
C207, C208
3
10PF
10pF
C209, C313, C314
1
30PF
30pF
C215
1
10NF
10nF
C302
6
C52923
1µF
C303, C305, C310, C317, C412, C413
2
3P3
3p3
C306, C307
65
C96446
10µF
C311, C319, C502, C504, C506, C602, C604, C702 +57
1
C15850
10µF
C411
2
27PF
27pF
C414, C415
5
100K
100k
R201, R202, R204, R205, R303
1
22K
22k
R203
1
13K
13k
R206
6
10K
10k
R301, R304, R310, R403, R501, R508
1
22
R302
5
0
R305, R306, R307, R308, R309
4
5K1
5k1
R311, R312, R401, R402
2
27R
R404, R405
23
1k
R406, R407, R502, R503, R504, R505, R506, R507 +15
1
do not fit
R408
1
20K
20k
R409

RD56 design files

The KiCad project lives in the lhm0/rotating_display_color repository on GitHub; these links point at the commit this page was built from.

RD56: common questions

What microcontroller does the RD56 use?

The RD56 is built around the RP2040, from the RP2040/RP2350 family.

How big is the RD56 PCB?

The RD56 measures 120 × 118.5 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the RD56?

263 components, from 44 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 RD56 design files?

From the lhm0/rotating_display_color 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 RD56 design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the RD56 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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