Skip to the content
PCBKitNew board
2 layers193.8 × 120 mmWorldclockv1, the printed circuit board in 3D

Electronics Projects

Size
193.8 × 120 mm
Copper layers
2
Thickness
1.6 mm
Parts
120
Nets
70
Pads
338
Tracks, vias
641, 126
Pours
2
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
4 Apr 2024
Updated
14 May 2026

Overview

Worldclockv1 is an open-source printed circuit board by orri93, from the orri93/electronics repository on GitHub, published under the MIT licence. It is a 2-layer board of 193.8 × 120 mm with 120 parts on 70 nets, routed with 641 tracks and 126 vias.

It is built around the ESP32-WROOM-32UE-N4, LM386 and L7805, with the DS3232MZ+, BSS138 and IRLML6402 among its other parts. Its parts include 26 resistors, 18 capacitors, 10 connectors, 7 ICs and 7 transistors. It belongs with the ESP32 boards of this library.

Main components

6

README

README.md

electronics

A personal collection of electronics projects, experiments, and reusable design assets.

This repository includes circuit designs (mostly KiCad), component libraries, simulation files, prototypes, firmware/code, and supporting documentation. It is organized as a working archive where each project can include one or more of the following:

  • Hardware design files (schematics and PCB layouts)
  • Build/manufacturing outputs (for example gerbers)
  • Notes, references, and datasheets
  • Source code or firmware when the project includes programmable parts

Folder Structure

Top-level folders are grouped by purpose. Common locations include:

  • circuits/: Main project folders for KiCad designs (schematics/PCBs).
  • doc/: Documentation, references, datasheets, books, project notes, and how-to material.
  • src/: Source code and firmware-related project code when applicable.
  • 3d/: 3D models (for example STEP files) used for PCB/mechanical integration.
  • symbols/: KiCad symbol libraries.
  • footprints/: KiCad footprint libraries.
  • gerber/: Generated manufacturing outputs for selected projects.
  • spices/: SPICE/LTspice simulation files.
  • prototype/: Early-stage prototypes and exploratory files.
  • projects/: Additional project work that may not fit the main circuits/ layout.
  • media/: Images and other media assets.
  • pcb/: Standalone PCB-related utilities or adapter boards.
  • tools/: Tooling and utility resources.
  • repares/: Repair-related project material.
  • tmp/: Temporary files.

Project Organization Notes

Project contents are not always in a single folder. Depending on the project stage and history:

  • KiCad circuit files are often located under circuits/<project-name>/.
  • Documentation can be stored separately under doc/.
  • Code or firmware is sometimes placed under src/.

This split keeps hardware design, documentation, and software concerns organized while still allowing each project to evolve over time.

Parts

120
QtyValueFootprintReferences
1910kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR2, R5, R6, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R24, R25, R26 +3
10ID_WPJumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mmJP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8, JP9, JP10
6BSS138Package_TO_SOT_SMD:SOT-23Q1, Q2, Q3, Q4, Q5, Q6
422 uFCapacitor_SMD:CP_Elec_4x5.4C5, C6, C7, C8
4GNDTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP25, TP26, TP27, TP28
4MountingHole_3.2mm_M3MountingHole:MountingHole_3.2mm_M3Hole1, Hole2, Hole3, Hole4
310 uFCapacitor_SMD:CP_Elec_4x5.4C9, C10, C11
3100 nFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC1, C3, C18
3L7805Package_TO_SOT_SMD:TO-263-3_TabPin2U4, U5, U6
2100nFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC13, C15
2470Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR3, R4
11 uFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC2
11 uFCapacitor_SMD:CP_Elec_4x5.4C4
110Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR1
11000uFCapacitor_SMD:CP_Elec_10x10.5C16
1100kPotentiometer_THT:Potentiometer_Runtron_RM-065_VerticalRV2
1100kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR23
1100kPotentiometer_THT:Potentiometer_Alps_RK163_Single_HorizontalRV1
1100uFCapacitor_SMD:CP_Elec_6.3x7.7C17
110nFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC12
11kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR20
11uFCapacitor_SMD:CP_Elec_4x5.4C14
14R7Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR22
14k7Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR21
1AltButton_Switch_THT:SW_PUSH_6mmSW4
1AudioTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP10
1BOOTConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ10
1BOOTButton_Switch_THT:SW_PUSH_6mmSW2
1Battery_CellBattery:BatteryHolder_Keystone_3000_1x12mmBT1
1DAC1TestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP7
1DS3232MPackage_SO:SOIC-8_3.9x4.9mm_P1.27mmU2
1Display 1 AConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ4
1Display 1 BConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ7
1Display 2 AConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ5
1Display 2 BConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ8
1Display 3 AConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ6
1Display 3 BConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ9
1ENTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP2
1ENButton_Switch_THT:SW_PUSH_6mmSW1
1EN GNDTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP1
1ESP32-WROOM-32UERF_Module:ESP32-WROOM-32UEU1
1I 3.3V ATestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP17
1I 3.3V BTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP21
1I 5V #1 ATestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP18
1I 5V #1 BTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP22
1I 5V #2 ATestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP19
1I 5V #2 BTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP23
1I 5V #3 ATestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP20
1I 5V #3 BTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP24
1I ATestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP15
1I BTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP16
1IRLML6402Package_TO_SOT_SMD:SOT-23Q7
1LD1117S33TR_SOT223Package_TO_SOT_SMD:SOT-223-3_TabPin2U3
1LED_Dual_AKALED_THT:LED_D3.0mm-3D1
1LM386Package_SO:SOIC-8_3.9x4.9mm_P1.27mmU7
1PolyfuseFuse:Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolderF1
1PowerConnector_BarrelJack:BarrelJack_HorizontalJ3
1RTC INTTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP14
1RTC RSTTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP13
1RTC SCLTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP11
1RTC SDATestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP12
1Rotary Encoder ModuleConnector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_VerticalJ1
1RotaryEncoder_SwitchRotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmSW3
1SpeakerTerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type055_RT01502HDWU_1x02_P5.00mm_HorizontalLS1
1TZ1 CLKTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP3
1TZ1 DIOTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP4
1TZ2 CLKTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP5
1TZ2 DIOTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP6
1TZ3 CLKTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP8
1TZ3 DIOTestPoint:TestPoint_Loop_D2.50mm_Drill1.0mmTP9
1UARTConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ2

Questions

How big is the Worldclockv1 PCB?

It measures 193.8 × 120 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Worldclockv1 use?

120 parts, built around the ESP32-WROOM-32UE-N4, LM386, L7805 and DS3232MZ+. 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 Worldclockv1 KiCad files?

From the orri93/electronics repository on GitHub, at the commit this page was made from: the board is circuits/worldclockv1/worldclockv1.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Worldclockv1 design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

More from orri93/electronics

12
  • 2 layers100 × 100 mmCompassv0, the printed circuit board in 3D

    Compassv0

    orri93/electronics

    Electronics Projects

    62 parts1MIT
  • 2 layers93.5 × 67.3 mmMat464tdrv1, the printed circuit board in 3D

    Mat464tdrv1

    orri93/electronics

    Electronics Projects

    41 parts1MIT
  • 2 layers56.6 × 57.7 mmMjk14v1, the printed circuit board in 3D

    Mjk14v1

    orri93/electronics

    Electronics Projects

    37 parts1MIT
  • 2 layers60.5 × 84.1 mmEsp32htv0, the printed circuit board in 3D

    Esp32htv0

    orri93/electronics

    Electronics Projects

    36 parts1MIT
  • 2 layers58.7 × 47.8 mmMat464agc, the printed circuit board in 3D

    Mat464agc

    orri93/electronics

    Electronics Projects

    33 parts1MIT
  • 2 layers65 × 56.5 mmRpiampdacv1, the printed circuit board in 3D

    Rpiampdacv1

    orri93/electronics

    Electronics Projects

    32 parts1MIT
  • 2 layers68.6 × 53.3 mmArdampdacv1, the printed circuit board in 3D

    Ardampdacv1

    orri93/electronics

    Electronics Projects

    30 parts1MIT
  • 2 layers83.6 × 51.8 mmMat464psv1, the printed circuit board in 3D

    Mat464psv1

    orri93/electronics

    Electronics Projects

    27 parts1MIT
  • 2 layers56.6 × 57.7 mmSingletramtransv1, the printed circuit board in 3D

    Singletramtransv1

    orri93/electronics

    Electronics Projects

    25 parts1MIT
  • 2 layers56.6 × 57.7 mmEsp32htv1, the printed circuit board in 3D

    Esp32htv1

    orri93/electronics

    Electronics Projects

    24 parts1MIT

Similar boards

  • 2 layers90 × 80 mmH2S Sensor, the printed circuit board in 3D

    H2S Sensor

    Global-Health-Engineering/h2s-monitor

    Design and Development of a Low-Cost Hydrogen Sulfide Sensor System for Biogas Monitoring

    52 parts
  • 4 layers401.3 × 203.2 mmCpu010, the printed circuit board in 3D

    Cpu010

    thorpej/pg68k

    The 68k Playground, a 680x0-based home-brew computer with multiple CPU options

    272 parts15
  • 4 layers500 × 34 mmPrecision clock, the printed circuit board in 3D

    Precision clock

    Alan-JH/precision-clock

    ECE 362 Final Project

    150 parts
  • 4 layers70 × 50 mmTimekeeper, the printed circuit board in 3D

    Timekeeper

    liam-tirpitz/TickTock

    A custom ESP32-based clock platform driving WS2812B/NeoPixel LED displays. Firmware and PCB are display-agnostic, supporting any addressable LED clock with minimal adjustments.

    57 parts
  • 2 layers31.5 × 50.5 mmAkashi ir arena, the printed circuit board in 3D

    Akashi ir arena

    sizu-07/akashi-ir-arena

    明石光線

    52 parts
  • 4 layers88.9 × 57.8 mmTinyTimer V01, the printed circuit board in 3D

    TinyTimer V01

    cd334/TD_TinyTimer

    This is a hardware for Phobos Lap Timer

    111 parts1
  • 2 layers95 × 73 mmWs1-basestation pcb, the printed circuit board in 3D

    Ws1-basestation pcb

    artichoked1/weatherStationHubBoard

    This is a hub board that collects data from multiple sensors via RS485 and sends it to a server via LoRaWAN. d

    51 parts
  • 2 layers152 × 152 mmSpinne Werkstatt, the printed circuit board in 3D

    Spinne Werkstatt

    tatze1305/Spinne_Kicad

    Dies ist ein KiCad-Projekt, das einen vollständigen Schaltplan sowie ein PCB-Layout beinhaltet. Ziel ist es, eine modulare Elektroniklösung zu entwickeln, die verschiedene Komponenten wie Sensoren, Versorgungseinheiten…

    80 partsMIT