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4 layers42 × 27 mmDRP.004, the printed circuit board in 3D

The QUACKer

Size
42 × 27 mm
Copper layers
4
Thickness
1.6 mm
Parts
71
Nets
55
Pads
235
Tracks, vias
271, 176
Pours
245
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
5 Apr 2025
Updated
12 Jul 2026

Overview

DRP.004 is an open-source printed circuit board by MuffinKing-jpeg, from the MuffinKing-jpeg/DRP.004 repository on GitHub. It is a 4-layer board of 42 × 27 mm with 71 parts on 55 nets, routed with 271 tracks and 176 vias.

It is built around the TPS61022RWUR, TPD1E10B06DPYR and AP2112K-1.8, with the BQ24073RGTR, DTC143Z and 1N4148WS among its other parts. Its parts include 18 resistors, 16 capacitors, 7 ICs, 6 connectors and 4 diodes. It belongs with the STM32 boards of this library.

Main components

8

README

readme.md

DRP.004

Quack with the new level! bottom image

Docs

Changes in v3

  • Completely new power design
    • 1.8v for MCU + LDR
    • ~5.5v for servo only
  • Interface moved to one side.
  • MOAR SILK!
  • ENIG

Changes in v4.2

  • Switches moved to SMT parts
  • Moved USB to same side as other user interfaces
  • Changed battery connector to PH2.0
  • Changed NTC thermistor to 0402
  • Rerouted almost everything

Changes in v4.3

  • Threw to trash few useless resistors
  • Removed power-on by button
  • Squished PCB to 27*42mm size
  • Fresh docs

Changes in v4.4

  • CI/CD
  • TPS61022 -> TPS63020

Issues to overcome

  • [] Please works as v3

Parts

71
QtyValueFootprintReferences
5100nCapacitor_SMD:C_0603_1608MetricC7, C10, C11, C14, C18
510kResistor_SMD:R_0603_1608MetricR1, R17, R18, R19, R22
53.3kResistor_SMD:R_0603_1608MetricR5, R16, R20, R21, R23
31uCapacitor_SMD:C_0603_1608MetricC5, C6, C17
322uCapacitor_SMD:C_0805_2012MetricC2, C3, C4
34.7uCapacitor_SMD:C_0603_1608MetricC1, C8, C12
35.1kResistor_SMD:R_0603_1608MetricR9, R10, R11
3LEDLED_SMD:LED_0805_2012MetricD3, D4, D5
3TPD1E10B06DPYRMuffin_SMD:X1SON-2_L1.0-W0.6-P0.65-BIU2, U3, U4
21nCapacitor_SMD:C_0603_1608MetricC9, C16
2Conn_01x03_PinConnector_Muffin_THT.pretty:Molex_PicoBlade_53048-0310_1x03_P1.25mm_HorizontalJ5, J6
2DTC143ZMuffin_SMD:SOT-523Q3, Q6
2FiducialFiducial:Fiducial_0.5mm_Mask1.5mmFID1, FID2
2GNDTestPoint:TestPoint_Pad_D1.0mmTP7, TP8
11.1kResistor_SMD:R_0603_1608MetricR3
11.5uhInductor_SMD:L_Changjiang_FTC322512SL1
1100Resistor_SMD:R_0603_1608MetricR7
1100kResistor_SMD:R_0402_1005MetricR2
110k NTCResistor_SMD:R_0402_1005MetricTH1
11MResistor_SMD:R_0402_1005MetricR6
11N4148WSDiode_SMD:D_SOD-323D1
133kResistor_SMD:R_0603_1608MetricR4
1AO3400APackage_TO_SOT_SMD:SOT-23Q1
1AP2112K-1.8Package_TO_SOT_SMD:SOT-23-5U7
1BQ24073RGTRMuffin_SMD:RGT16U1
1Conn_01x02_PinConnector_Muffin_THT.pretty:JST_PH_S2B-PH-K_1x02_P2.00mm_HorizontalJ1
1Conn_01x03_PinConnector_Muffin_THT.pretty:PinHeader_1x03_P2.54mm_HorizontalJ3
1Conn_01x05_PinConnector_Muffin_THT.pretty:Molex_PicoBlade_53048-0510_1x05_P1.25mm_HorizontalJ4
1DMG1012TMuffin_SMD:SOT-523Q4
1STM32G031G8UxMuffin_SMD:QFN-28_4x4mm_P0.5mmU6
1SWCLKTestPoint:TestPoint_Pad_D1.0mmTP9
1SWDIOTestPoint:TestPoint_Pad_D1.0mmTP4
1SW_PushMuffin_SMD:SW_Push_1P1T-MP_NO_Horizontal_Alps_SKRTLAE010SW2
1SW_SPDT_SHMuffin_SMD:MSK12C02SW1
1TPS61022RWURMuffin_SMD:DSJ14_2P85X1P58U5
1TestPointTestPoint:TestPoint_Pad_D1.0mmTP10
1USB_C_Receptacle_PowerOnly_6PConnector_USB:USB_C_Receptacle_GCT_USB4125-xx-x-0190_6P_TopMnt_HorizontalJ2
1U_RXTestPoint:TestPoint_Pad_D1.0mmTP2
1U_TXTestPoint:TestPoint_Pad_D1.0mmTP1
1VBATTestPoint:TestPoint_Pad_D1.0mmTP3
1~{NRST}TestPoint:TestPoint_Pad_D1.0mmTP5

The 70 most common of 71 parts.

Questions

How big is the DRP.004 PCB?

It measures 42 × 27 mm and has 4 copper layers, 1.6 mm thick.

What parts does the DRP.004 use?

71 parts, built around the TPS61022RWUR, TPD1E10B06DPYR, AP2112K-1.8 and BQ24073RGTR. 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 DRP.004 KiCad files?

From the MuffinKing-jpeg/DRP.004 repository on GitHub, at the commit this page was made from: the board is DRP.004.kicad_pcb and its schematic DRP.004.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the DRP.004 design in my own project?

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

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