Skip to the content
2 layers228.6 × 78.7 mmPlonck, the printed circuit board in 3D

An attempt at making a planck-compatible pcb with bluetooth

Size
228.6 × 78.7 mm
Copper layers
2
Thickness
1.6 mm
Parts
132
Nets
97
Pads
610
Tracks, vias
1,014, 140
Pours
3
Routed
Yes
KiCad
KiCad 5 (file 20210606)
Created
14 Apr 2021
Updated
24 Jun 2021

Overview

Plonck is an open-source printed circuit board by swampmonster, from the swampmonster/plonck repository on GitHub. It is a 2-layer board of 228.6 × 78.7 mm with 132 parts on 97 nets, routed with 1,014 tracks and 140 vias.

It is built around the SRV05-4, 1N4148W and 19-217/BHC-ZL1M2RY/3T, with the KT-0603R, SS14 and TYPE-C-31-M-12 among its other parts. Its parts include 51 diodes, 9 resistors, 5 capacitors, 4 ICs and 3 connectors. It belongs with the radio and wireless boards and the nRF52 and nRF5x boards of this library.

Main components

6

README

README.md

plonck

An attempt at making a planck-compatible pcb with bluetooth
PCB Render

Current status:

Rev A0 (NOT RECOMMENDED FOR PRODUCTION, READ STATUS)

I've received and built this version and it works fine but i made the mistake of wiring up the GND and VBUS pins on the ESD chip incorrectly.
Thankfully those are the middle pins and simply desoldering and turning the chip around solves the problem.
Update: Finally had time to test the load sharing circuitry and i had the pinout of the mosfet setup incorrectly which requires bodge wires to fix.
If you are looking to get boards made from this revision you need to be aware of this but my recommendation would be to wait for the next one.

Rev B0

This should address all the issues in A0 while also adding some features that were not previously present such as:

  • Leds for charge and bootloader status.
  • Voltage divider for charge monitoring.
  • SMD USB port so it can be mounted by JLC.

Boards have been ordered but not yet received so production is still not recommended.

License

The project is licensed under CERN-OHL-S (see LICENSE file) with the exceptions of:

Thanks

Huge shoutout to 4pplet for tons of advice and help.

Parts

132
QtyValueFootprintReferences
481N4148WDiode_SMD:D_SOD-123D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +32
48MX-NoLEDMX_Alps_Hybrid:MX-1U-NoLEDMX1, MX2, MX10, MX11, MX12, MX13, MX14, MX15, MX16, MX17, MX18, MX19, MX20, MX21, MX22, MX23 +32
6MountingHoleMountingHole:MountingHole_2.7mm_M2.5_Pad_TopBottomH1, H2, H3, H4, H5, H6
3MX-NoLEDMX_Alps_Hybrid:MX-2U-ReversedStabilizers-NoLEDMX49, MX50, MX51
210kResistor_SMD:R_0603_1608MetricR4, R6
24.7uFCapacitor_SMD:C_0603_1608MetricC3, C5
247uFCapacitor_SMD:C_1206_3216MetricC1, C2
25.1kResistor_SMD:R_0603_1608MetricR1, R2
1100kResistor_SMD:R_0603_1608MetricR5
119-217/BHC-ZL1M2RY/3TLED_SMD:LED_0603_1608MetricD51
11uFCapacitor_SMD:C_0603_1608MetricC4
12MResistor_SMD:R_0603_1608MetricR9
133Resistor_SMD:R_0603_1608MetricR7
1470Resistor_SMD:R_0603_1608MetricR3
1806kResistor_SMD:R_0603_1608MetricR8
1Battery_connectorSM02B-SRSS-TB_LF__SN_:SM02B-SRSS-TB(LF)(SN)J2
1Conn_01x06Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_VerticalJ3
1KT-0603RLED_SMD:LED_0603_1608MetricD37
1Q_PMOS_GSDul_SI2301CDST1GE3:SI2301CDS-T1-GE3Q1
1SMD Fuse Fast Blow 500mAFuse:Fuse_1206_3216MetricF1
1SRV05-4Package_TO_SOT_SMD:SOT-23-6U1
1SS14Diode_SMD:D_SMAD50
1SW_PushButton_Switch_SMD:SW_Push_SPST_NO_Alps_SKRKSW1
1TP4054-42-SOT25-RPackage_TO_SOT_SMD:TSOT-23-5U2
1TYPE-C-31-M-12Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12J1
1XC6206PxxxMR-Regulator_LinearPackage_TO_SOT_SMD:SOT-23U4
1nRF52840_holyiot_18010holyiot-18010:nRF52840_holyiot_18010_HS_simpleU3

Similar boards

  • 2 layers385 × 127.3 mmKeyboard, the printed circuit board in 3D

    Keyboard

    kitspace-test-repos/kicad6-file-collection

    312 partsMIT
  • 2 layers429.6 × 540.7 mmKeyboard, the printed circuit board in 3D

    Keyboard

    joshajohnson/louise

    A project between Josh and RiotPunch to build a 75% alice keyboard with a southpaw numpad.

    327 parts5
  • 2 layers160 × 100 mmBase, the printed circuit board in 3D

    Base

    florolf/lab-automation

    Plugs into relay and can be used to provide switchable 5V USB power to downstream devices.

    83 parts1
  • 4 layers25 × 40 mmScarab, the printed circuit board in 3D

    Scarab

    MarkR42/malenki-nano

    Speed controller and receiver for small robots

    59 parts73GPL-3.0
  • 4 layers88 × 58 mmECG V-0.2, the printed circuit board in 3D

    ECG V-0.2

    Doenec/ecg-esp32

    open source project ecg with esp32 and ad8232

    115 parts8
  • 4 layers33.5 × 66.8 mmNet bmp, the printed circuit board in 3D

    Net bmp

    elagil/net-bmp

    An Ethernet-connected SWD/JTAG debug adapter (blackmagic probe)

    97 parts3GPL-3.0
  • 6 layers84.5 × 56 mmVLF4 PCB, the printed circuit board in 3D

    VLF4 PCB

    McMaster-Rocketry-Team/VLF4r2

    PCB schematics and layout for Void Lake Fusion 4 Avionics

    156 parts3

Questions

How big is the Plonck PCB?

It measures 228.6 × 78.7 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Plonck use?

132 parts, built around the SRV05-4, 1N4148W, 19-217/BHC-ZL1M2RY/3T and KT-0603R. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Plonck KiCad files?

From the swampmonster/plonck repository on GitHub, at the commit this page was made from: the board is plonck.kicad_pcb and its schematic plonck.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Plonck design in my own project?

Its repository states no licence, so its author keeps all rights: ask swampmonster before reusing the design.