Skip to the content
PCBKitNew board
2 layersEeloo Pad, the printed circuit board in 3D

Eeloo Pad

YugnatD/Eeloo_Pad
Open in PCBKitView on GitHub.kicad_pcb
Copper layers
2
Thickness
1.6 mm
Parts
318
Nets
366
Pads
1,362
Tracks, vias
1,727, 101
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
10 Mar 2023
Updated
11 Oct 2026

Overview

Eeloo Pad is an open-source printed circuit board by YugnatD, from the YugnatD/Eeloo_Pad repository on GitHub. It is a 2-layer board with 318 parts on 366 nets, routed with 1,727 tracks and 101 vias.

It is built around the HT16K33A-28SSOP, AP63203WU and PCA9535PW, with the CH334F, SN74AHCT1G125DBVR(UMW) and TCA9617ADGKR among its other parts. Its parts include 110 capacitors, 93 resistors, 45 diodes, 33 switches and 16 ICs.

Main components

12

README

README.md

Eeloo Pad

A Kerbal Space Program Control Panel

A Open Source project to create a control panel for Kerbal Space Program. The goal is to create a control panel that can be used to control the game from a physical panel. The control panel will be able to control the game, and display information about the game.

Features

  • Control the game (Thrust, SAS, RCS, etc.)
  • TODO

Block Diagram

Diagram

Schematic

Parts

318
QtyValueFootprintReferences
75100nCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC1, C10, C11, C12, C13, C100, C101, C102, C103, C104, C105, C106, C107, C108, C109, C110 +59
5510kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR1, R107, R108, R109, R110, R111, R112, R113, R114, R115, R116, R117, R118, R119, R123, R124 +39
33SW_PushButton_Switch_SMD:SW_Push_1P1T_XKB_TS-1187ASW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +17
25XL-5050RGBC-WS2812BLED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mmLED1, LED2, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23 +9
1822uFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC58, C59, C60, C65, C66, C67, C68, C69, C70, C71, C72, C73, C74, C75, C76, C77 +2
1839kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28 +2
12FJ5241AHEeloo_Pad:LED-SEG-TH_18P-L25.2-W21.1-P2.54-LS15.2-BLLED26, LED27, LED28, LED29, LED30, LED31, LED32, LED33, LED34, LED35, LED36, LED37
8Conn_01x03_PinConnector_JST:JST_EH_B3B-EH-A_1x03_P2.50mm_VerticalJ4, J5, J6, J8, J9, J10, J11, J14
615pCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC5, C6, C20, C21, C83, C84
64k7Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR60, R61, R63, R64, R105, R106
6HT16K33A-28SSOPEeloo_Pad:SOP63P600X175-28NU1, U2, U3, U4, U5, U6
6SD103AWSDiode_SMD:D_SOD-323_HandSolderingD1, D2, D3, D4, D5, D6
51uCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC2, C7, C17, C22, C80
41kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR3, R5, R8, R10
427.4Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolderR6, R7, R11, R12
3100nFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC61, C62, C63
310uCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC15, C30, C81
3Conn_01x02_PinConnector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_VerticalJ3, J7, J44
25.1kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR121, R122
2ABM8-272-T3Eeloo_Pad:ABM8272T3Y1, Y2
2NCResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR4, R9
2PCA9535PWPackage_SO:TSSOP-24_4.4x7.8mm_P0.65mmIC2, IC3
2SC0914_13_Eeloo_Pad:SC091413J12, J13
2W25Q16JVUXIQ_TREeloo_Pad:SON50P300X200X60-9NIC1, IC5
11.5AFuse:Fuse_1206_3216MetricF1
1100Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR120
112MHzEeloo_Pad:ABM8272T3Y3
13.9uHInductor_SMD:L_Sunlord_SWPA4030SL1
1330Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR126
1ADS7830IPWREeloo_Pad:SOP65P640X120-16NIC4
1AO3400APackage_TO_SOT_SMD:SOT-23Q1
1AP63203WUPackage_TO_SOT_SMD:TSOT-23-6U7
1CH334FPackage_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mmU8
1Conn_01x13Connector_JST:JST_GH_SM13B-GHS-TB_1x13-1MP_P1.25mm_HorizontalJ2
1ESD5ZxxDiode_SMD:D_SOD-523D10
1SN74AHCT1G125DBVREeloo_Pad:SOT95P280X145-5NIC7
1SS34Diode_SMD:D_SMAD7
1TCA9617ADGKREeloo_Pad:SOP65P490X110-8NIC6
1USBLC6-2SC6Package_TO_SOT_SMD:SOT-23-6U9
1USB_C_Receptacle_USB2.0_16PConnector_USB:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01AJ1

Questions

What parts does the Eeloo Pad use?

318 parts, built around the HT16K33A-28SSOP, AP63203WU, PCA9535PW and CH334F. 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 Eeloo Pad KiCad files?

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

Can I use the Eeloo Pad design in my own project?

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

Similar boards

  • 4 layers65 × 56 mmInterface db hat, the printed circuit board in 3D

    Interface db hat

    ALTAIR-McGill-x-UVictoria/ALTAIR-PCBs

    ALTAIR PCB files

    89 parts
  • 2 layers61.5 × 26 mmI2C mux buffer, the printed circuit board in 3D

    I2C mux buffer

    Luca-Jones/enph-253-pet-rescue

    The mechanical design was done with Onshape as our CAD tool. It is simple to use and allows for collaboration and version control.

    21 parts
  • 2 layers136.8 × 33.5 mmBicolour matrix, the printed circuit board in 3D

    Bicolour matrix

    picafe/bicolor-matrix

    A 32x8 bicolor LED matrix module based on the Holtek HT16K33A LED driver.

    52 parts
  • 4 layers132.4 × 33.4 mmBicolour matrix, the printed circuit board in 3D

    Bicolour matrix

    picafe/bicolor-matrix-v2

    A 32x8 bicolor LED matrix module composed of 4 8x8 matrices based on the Holtek HT16K33A I2C LED driver. V1 paired it with a stacked adapter (RP2040 Zero + DS3231 module); V2 redesigns the matrix routing and puts an…

    51 parts
  • 4 layers33.2 × 33.2 mmMatrix, the printed circuit board in 3D

    Matrix

    picafe/pendant

    A pendant built from two PCBs: a 8×8 bicolor LED matrix module (red, orange, green) and controller board with battery charging, USB-C power, 5 V boost, and motion sensing.

    12 parts
  • 4 layers138.1 × 104.6 mmV7-kaleido, the printed circuit board in 3D

    V7-kaleido

    vroland/epdiy-hardware

    Hardware design files for EPDiy: https://github.com/vroland/epdiy.

    140 parts75CC-BY-SA-4.0
  • 2 layers448 × 144 mmChelizi, the printed circuit board in 3D

    Chelizi

    beeender/chelizi

    237 parts