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Pr clock

tobycm·pr-clock·pcb/pr-clock.kicad_pcb

Pr clock PCB layout, top view — open source ESP32 board by tobycm
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About the Pr clock PCB

Pr clock is an open source ESP32 PCB design by tobycm, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 70 mm, with 14 components from 11 distinct parts.

Its main chip is the ESP32-C3-WROOM-02, from the ESP32 family. Other key parts include the TM1637 and ME6211C33M5. By type, the board carries 3 ICs, 3 switches, 2 resistors, 1 connector, 1 fuse and 1 LED.

It belongs with the robotics & motion and rf & radio designs in this gallery.

From the project

a fun mini clock as penticton robotics merch to help fundraise them team. please speeeeed we need this we kinda mulalesssss

Pr clock, from the project README
From the project README

Main components on the Pr clock

TM1637ESP32-C3-WROOM-02ME6211C33M5

Pr clock bill of materials (BOM)

14 components, 11 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TM1637
U1
1
ESP32-C3-WROOM-02
U2
1
ME6211C33M5
U3
1
USB_C_RECEPTACLE_USB2.0_14P
USB_C_Receptacle_USB2.0_14P
J2
1
C883135
2A
F1
3
SW_Push
SW1, SW2, SW3
1
YD3641BRL-7.3
LED1
1
C82044
5V
D1
1
C85840
220Ω@100MHz
FB1
1
10U
10u
C4
2
5.1K
5.1k
R3, R4

Pr clock design files

The KiCad project lives in the tobycm/pr-clock repository on GitHub; these links point at the commit this page was built from.

Pr clock: common questions

What microcontroller does the Pr clock use?

The Pr clock is built around the ESP32-C3-WROOM-02, from the ESP32 family.

How big is the Pr clock PCB?

The Pr clock measures 100 × 70 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pr clock?

14 components, from 11 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 Pr clock design files?

From the tobycm/pr-clock 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 Pr clock design in my own project?

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

Can I test firmware for the Pr 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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