HardLabs

RKD-OLD

PTALTS-LK·RKD-OLD·PCB/stand+sdvx/Type-C/RKD.kicad_pcb

RKD-OLD PCB layout, top view — open source RP2040/RP2350 board by PTALTS-LK
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About the RKD-OLD PCB

RKD-OLD is an open source RP2040/RP2350 PCB design by PTALTS-LK, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 100 × 94 mm, with 86 components from 33 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the W25Q32JV, CH9329 and AP1117-33. By type, the board carries 20 resistors, 19 capacitors, 15 connectors, 6 relays, 6 switches and 4 ICs.

It belongs with the keyboards and dev boards & breakouts designs in this gallery.

From the project

一个基于RP2040+CH9329的4k音游控制器/可编程键盘 支持扩展 硬件宏 SDVX v2版本正在开发中

Main components on the RKD-OLD

W25Q32JVRP2040CH9329AP1117-33

RKD-OLD bill of materials (BOM)

86 components, 33 distinct parts.

QtyPartRefs
1
W25Q32JV
U1
1
RP2040
U2
1
CH9329
U3
1
AP1117-33
U4
1
Crystal 12MHZ HC49
Y1
1
USB_C_Receptacle_USB2.0
J1
2
Conn_02x02_Odd_Even
J2, J4
2
Conn_02x04_Odd_Even
J3, J5
2
Conn_02x04_Odd_Even
J6, J9
2
Conn_02x02_Odd_Even
J7, J8
1
Conn_01x04_Male
J10
1
Conn_02x06_Odd_Even
J11
1
Conn_01x06
J12
1
Conn_01x03
J13
2
Conn_01x04
J14, J15
11
MountingHole
H1, H2, H3, H4, H5, H6, H7, H8 +3
6
Key
K1, K2, K3, K4, K5, K6
1
SW_DIP_x04
SW2
2
SW_Push
SW3, SW5
2
RotaryEncoder_Switch
SW6, SW8
Show 13 more
QtyPartRefs
1
SW_Push
SW7
4
LED
D1, D2, D3, D4
2
1u
C1, C2
2
27p
C3, C4
2
10u
C5, C6
13
100n
C7, C8, C9, C10, C11, C12, C13, C14 +5
8
27
R1, R2, R5, R6, R7, R8, R10, R11
2
1k
R3, R15
1
4.7k
R4
2
0
R9, R12
4
1k 0805
R13, R14, R16, R17
1
4.7k 0805
R18
2
5.1k
R19, R20

RKD-OLD design files

The KiCad project lives in the PTALTS-LK/RKD-OLD repository on GitHub; these links point at the commit this page was built from.

RKD-OLD: common questions

What microcontroller does the RKD-OLD use?

The RKD-OLD is built around the RP2040, from the RP2040/RP2350 family.

How big is the RKD-OLD PCB?

The RKD-OLD measures 100 × 94 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the RKD-OLD?

86 components, from 33 distinct parts. The full bill of materials is listed on this page.

Where can I download the RKD-OLD design files?

From the PTALTS-LK/RKD-OLD repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the RKD-OLD design in my own project?

Yes, under the terms of its GPL-3.0 license, which PTALTS-LK chose for the repository.

Can I test firmware for the RKD-OLD 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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