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Dodeca blink

barafael·dodeca-blink-pcb

Dodeca blink PCB layout, top view — open source ESP32 board by barafael

About the Dodeca blink PCB

Dodeca blink is an open source ESP32 PCB design by barafael, published on GitHub. It is a 2-layer board measuring 86.6 × 96.9 mm, with 20 components from 8 distinct parts.

Its main chip is the ESP32-DEVKITC-32D, from the ESP32 family. Other key parts include the 74HCT125, INMP441 and sdcard_module. By type, the board carries 6 capacitors, 6 resistors, 5 ICs and 3 connectors.

Dodeca blink, from the project README
From the project README

Main components on the Dodeca blink

ESP32-DEVKITC-32D74HCT125INMP441sdcard_module

Dodeca blink bill of materials (BOM)

20 components, 8 distinct parts.

QtyPartRefs
1
ESP32-DEVKITC-32D
U1
2
74HCT125
U2, U3
1
INMP441
U4
1
sdcard_module
U5
2
Conn_02x03_Counter_Clockwise
J1, J2
1
Conn_02x01
J3
6
C
C1, C2, C3, C4, C5, C6
6
4,7k
R1, R2, R3, R4, R5, R6

Dodeca blink design files

The KiCad project lives in the barafael/dodeca-blink-pcb repository on GitHub; these links point at the commit this page was built from.

Dodeca blink: common questions

What microcontroller does the Dodeca blink use?

The Dodeca blink is built around the ESP32-DEVKITC-32D, from the ESP32 family.

How big is the Dodeca blink PCB?

The Dodeca blink measures 86.6 × 96.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Dodeca blink?

20 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the Dodeca blink design files?

From the barafael/dodeca-blink-pcb repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Dodeca blink design in my own project?

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

Can I test firmware for the Dodeca blink 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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