HardLabs

PMK Dongle S3 HW00

PumaFPV·PMK·Hardware/PMK_Dongle/PMK_Dongle_S3_HW00/PMK_Dongle_S3_HW00.kicad_pcb

PMK Dongle S3 HW00 PCB layout, top view — open source RP2040/RP2350 board by PumaFPV

About the PMK Dongle S3 HW00 PCB

PMK Dongle S3 HW00 is an open source RP2040/RP2350 PCB design by PumaFPV, published on GitHub under the MIT license. It is a 4-layer board measuring 10.4 × 15.4 mm, with 26 components from 20 distinct parts.

Its main chip is the ESP32-S3FN8, from the RP2040/RP2350 family. Other key parts include the MIC5528-3.3YMT-T5. By type, the board carries 8 capacitors, 5 resistors, 3 test points, 3 inductors, 2 ICs and 2 switches.

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

From the project

PMK - Full wireless split keyboard

The goal is to make a suit of wireless devices such as "smart keyboard" (combined mouse and keyboard), gamepad, LEDs, knobs, display, etc The first step is to make a wireless split keyboard, and then we will see later...

Currently, you can connect up to 8 (software limited) devices per dongle, each of them having up to 8 (software limited) layers. Layers only affect keyboards and LED.

PMK Dongle S3 HW00, from the project README
From the project README

Main components on the PMK Dongle S3 HW00

MIC5528-3.3YMT-T5ESP32-S3FN8

PMK Dongle S3 HW00 bill of materials (BOM)

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

QtyPartRefs
1
MIC5528-3.3YMT-T5
U20
1
ESP32-S3FN8
U30
1
USB_A
J10
1
2450AT18A100E
ANT40
2
SKRPABE010
S30, S31
3
TestPoint
TP30, TP31, TP32
1
LED
D30
1
2p7
L40
1
2n7
L41
1
3n9
L42
2
2u2
C20, C21
1
22u
C30
1
100n
C31
1
100n
C32
1
1p2
C40
1
1p8
C41
1
1p
C42
3
10k
R30, R33, R34
1
2k
R31
1
499
R35

PMK Dongle S3 HW00 design files

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

PMK Dongle S3 HW00: common questions

What microcontroller does the PMK Dongle S3 HW00 use?

The PMK Dongle S3 HW00 is built around the ESP32-S3FN8, from the RP2040/RP2350 family.

How big is the PMK Dongle S3 HW00 PCB?

The PMK Dongle S3 HW00 measures 10.4 × 15.4 mm, has 4 copper layers and is 0.8012 mm thick.

How many components are on the PMK Dongle S3 HW00?

26 components, from 20 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 PMK Dongle S3 HW00 design files?

From the PumaFPV/PMK 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 PMK Dongle S3 HW00 design in my own project?

Yes, under the terms of its MIT license, which PumaFPV chose for the repository.

Can I test firmware for the PMK Dongle S3 HW00 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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