HardLabs

RLab Keyboard

RADARC·Modular-PA-Controller·Kicad/PA_Power_V1/RLab Keyboard/RLab Keyboard.kicad_pcb

RLab Keyboard PCB layout, top view — open source RP2040/RP2350 board by RADARC

About the RLab Keyboard PCB

RLab Keyboard is an open source RP2040/RP2350 PCB design by RADARC, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 66 components from 29 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. Other key parts include the MPR121QR2, LM386 and PCM5102. By type, the board carries 19 connectors, 19 capacitors, 18 resistors, 3 ICs, 2 switches and 1 module.

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

From the project

Controller for High Power RF Power Amplifiers based Raspberry Pi Pico

Reading and District Amateur Radio Club(RADARC) are working together on a number of collaborative construction projects. This one is to design and build a Modular PA controller for High Power (1kW plus) semiconductor Power amplifiers. This prototype implementation is targetted on the High Power HF PA Modules from W6PQL :

Kilowatt PA LPF Filter * Directional Coupler

RLab Keyboard, from the project README
From the project README

Main components on the RLab Keyboard

MPR121QR2LM386PCM5102RaspberryPi_Pico

RLab Keyboard bill of materials (BOM)

66 components, 29 distinct parts.

QtyPartRefs
1
MPR121QR2
U1
1
LM386
U2
1
PCM5102
U3
1
RaspberryPi_Pico
A1
7
Conn_01x01_Pin
J1, J2, J3, J4, J5, J6, J7
5
Conn_01x01_Pin
J8, J9, J10, J11, J12
1
AudioJack3_Switch
J13
1
Conn_01x04
J14
1
Conn_01x08
J15
1
Conn_01x09
J16
3
Conn_01x03
J17, J18, J19
1
Speaker
LS1
1
10k
RV1
2
10k
RV2, RV3
2
SW_MEC_5G
SW1, SW2
9
100n
C1, C2, C4, C11, C14, C15, C16, C21 +1
1
47u
C3
1
220u
C5
1
47n
C6
5
2u2
C9, C10, C17, C18, C19
Show 9 more
QtyPartRefs
2
2n2
C12, C13
7
4k7
R1, R2, R3, R9, R10, R11, R12
1
75k
R4
1
1k8
R5
3
100
R6, R15, R16
1
220
R7
1
10
R8
2
470
R13, R14
2
0R
R17, R18

RLab Keyboard design files

The KiCad project lives in the RADARC/Modular-PA-Controller repository on GitHub; these links point at the commit this page was built from.

RLab Keyboard: common questions

What microcontroller does the RLab Keyboard use?

The RLab Keyboard is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the RLab Keyboard PCB?

The RLab Keyboard measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the RLab Keyboard?

66 components, from 29 distinct parts. The full bill of materials is listed on this page.

Where can I download the RLab Keyboard design files?

From the RADARC/Modular-PA-Controller repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the RLab Keyboard design in my own project?

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

Can I test firmware for the RLab Keyboard 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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