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Worldclockv1

orri93·electronics·circuits/worldclockv1/worldclockv1.kicad_pcb

Worldclockv1 PCB layout, top view — open source ESP32 board by orri93
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About the Worldclockv1 PCB

Worldclockv1 is an open source ESP32 PCB design by orri93, published on GitHub under the MIT license. It is a 2-layer board measuring 193.8 × 120 mm, with 116 components from 70 distinct parts.

Its main chip is the ESP32-WROOM-32UE, from the ESP32 family. Other key parts include the DS3232M, LD1117S33TR_SOT223, L7805 and LM386. By type, the board carries 28 test points, 26 resistors, 18 capacitors, 10 connectors, 10 jumpers and 7 ICs.

From the project

Electronics Projects

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

Main components on the Worldclockv1

ESP32-WROOM-32UEDS3232MLD1117S33TR_SOT223L7805LM386

Worldclockv1 bill of materials (BOM)

116 components, 70 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-WROOM-32UE
U1
1
DS3232M
U2
1
LD1117S33TR_SOT223
U3
3
L7805
U4, U5, U6
1
LM386
U7
6
BSS138
Q1, Q2, Q3, Q4, Q5, Q6
1
IRLML6402
Q7
1
Rotary Encoder Module
J1
1
UART
J2
1
Power
J3
1
Display 1 A
J4
1
Display 2 A
J5
1
Display 3 A
J6
1
Display 1 B
J7
1
Display 2 B
J8
1
Display 3 B
J9
1
BOOT
J10
1
Battery_Cell
BT1
1
Polyfuse
F1
10
ID_WP
JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8 +2
Show 50 more
QtyPartRefs
1
Speaker
LS1
1
100k
RV1
1
100k
RV2
1
EN
SW1
1
BOOT
SW2
1
RotaryEncoder_Switch
SW3
1
Alt
SW4
1
EN GND
TP1
1
EN
TP2
1
TZ1 CLK
TP3
1
TZ1 DIO
TP4
1
TZ2 CLK
TP5
1
TZ2 DIO
TP6
1
DAC1
TP7
1
TZ3 CLK
TP8
1
TZ3 DIO
TP9
1
Audio
TP10
1
RTC SCL
TP11
1
RTC SDA
TP12
1
RTC RST
TP13
1
RTC INT
TP14
1
I A
TP15
1
I B
TP16
1
I 3.3V A
TP17
1
I 5V #1 A
TP18
1
I 5V #2 A
TP19
1
I 5V #3 A
TP20
1
I 3.3V B
TP21
1
I 5V #1 B
TP22
1
I 5V #2 B
TP23
1
I 5V #3 B
TP24
4
GND
TP25, TP26, TP27, TP28
1
LED_Dual_AKA
D1
3
100 nF
C1, C3, C18
1
1 uF
C2
1
1 uF
C4
4
22 uF
C5, C6, C7, C8
3
10 uF
C9, C10, C11
1
10nF
C12
2
100nF
C13, C15
1
1uF
C14
1
1000uF
C16
1
100uF
C17
1
10
R1
19
10k
R2, R5, R6, R7, R8, R9, R10, R11 +11
2
470
R3, R4
1
1k
R20
1
4k7
R21
1
4R7
R22
1
100k
R23

Worldclockv1 design files

The KiCad project lives in the orri93/electronics repository on GitHub; these links point at the commit this page was built from.

Worldclockv1: common questions

What microcontroller does the Worldclockv1 use?

The Worldclockv1 is built around the ESP32-WROOM-32UE, from the ESP32 family.

How big is the Worldclockv1 PCB?

The Worldclockv1 measures 193.8 × 120 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Worldclockv1?

116 components, from 70 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 Worldclockv1 design files?

From the orri93/electronics 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 Worldclockv1 design in my own project?

Yes, under the terms of its MIT license, which orri93 chose for the repository.

Can I test firmware for the Worldclockv1 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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