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ESP32 CLOCK

DeniAr111·Clock

ESP32 CLOCK PCB layout, top view — open source ESP32 board by DeniAr111

About the ESP32 CLOCK PCB

ESP32 CLOCK is an open source ESP32 PCB design by DeniAr111, published on GitHub. It is a 2-layer board measuring 110.1 × 64.4 mm, with 45 components from 25 distinct parts.

Its main chip is the ESP32-WROOM-32E, from the ESP32 family. Other key parts include the L7805, AMS1117-3.3 and Pololu_Breakout_A4988. By type, the board carries 12 connectors, 8 modules, 8 capacitors, 7 resistors, 4 switches and 3 ICs.

It belongs with the robotics & motion and iot & wireless designs in this gallery.

From the project

🕰️ Gear Flip-Clock Using ESP32, DS3231 RTC, and Stepper Motors This project is a mechanical clock built using an ESP32 microcontroller, a DS3231 real-time clock module, and four stepper motors to control gears that flip number segments — mimicking a 9-segment flip-disk display. T

🕰️ Gear Flip-Clock Using ESP32, DS3231 RTC, and Stepper Motors This project is a mechanical clock built using an ESP32 microcontroller, a DS3231 real-time clock module, and four stepper motors to control gears that flip number segments — mimicking a 9-segment flip-disk display. The electronics were entirely designed in KiCad as a two-part breakaway PCB, with separate sections for control logic and motor power handling.

ESP32 CLOCK, from the project README
From the project README

Main components on the ESP32 CLOCK

ESP32-WROOM-32EL7805AMS1117-3.3Pololu_Breakout_A4988

ESP32 CLOCK bill of materials (BOM)

45 components, 25 distinct parts.

QtyPartRefs
1
ESP32-WROOM-32E
U1
1
L7805
U2
1
AMS1117-3.3
U3
4
Pololu_Breakout_A4988
A1, A2, A3, A4
4
Stepper_Motor_bipolar
M1, M2, M3, M4
1
DS3231 RTC
J1
1
Conn_01x02_Socket
J2
1
m1i
J3
1
m1o
J4
1
m2i
J5
1
m2o
J6
1
m3i
J7
1
bt_conn_i
J8
1
m3o
J9
1
m4i
J10
1
m4o
J11
1
bt_conn_o
J12
2
Jumper_2_Open
JP1, JP2
4
SW_SPST
SW3, SW4, SW5, SW6
1
LED
D1
Show 5 more
QtyPartRefs
3
10μF
C1, C2, C7
4
0.1μF
C3, C4, C5, C8
1
100μF
C6
6
10KΩ
R1, R2, R4, R5, R6, R7
1
1KΩ
R3

ESP32 CLOCK design files

The KiCad project lives in the DeniAr111/Clock repository on GitHub; these links point at the commit this page was built from.

ESP32 CLOCK: common questions

What microcontroller does the ESP32 CLOCK use?

The ESP32 CLOCK is built around the ESP32-WROOM-32E, from the ESP32 family.

How big is the ESP32 CLOCK PCB?

The ESP32 CLOCK measures 110.1 × 64.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32 CLOCK?

45 components, from 25 distinct parts. The full bill of materials is listed on this page.

Where can I download the ESP32 CLOCK design files?

From the DeniAr111/Clock repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ESP32 CLOCK design in my own project?

The repository has no license, so all rights stay with DeniAr111. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ESP32 CLOCK 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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