HardLabs

ESP32BB

asukiaaa·esp32bb·main_pcb/esp32bb.kicad_pcb

ESP32BB PCB layout, top view — open source ESP32 board by asukiaaa
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About the ESP32BB PCB

ESP32BB is an open source ESP32 PCB design by asukiaaa, published on GitHub. It is a 2-layer board measuring 43.2 × 61 mm, with 27 components from 23 distinct parts.

Its main chip is the ESP32-WROOM, from the ESP32 family. Other key parts include the NCP1117ST33T3G and CP2102. By type, the board carries 8 capacitors, 6 resistors, 3 ICs, 3 connectors, 3 diodes and 2 transistors.

It belongs with the dev boards & breakouts and usb & debug tools designs in this gallery.

From the project

A KiCad project for esp-wroom-32 and breadboard.

- espressif/arduino-esp32 - espressif/esp-idf - Mongoose OS

ESP32BB, from the project README
From the project README

Main components on the ESP32BB

ESP32-WROOMNCP1117ST33T3GCP2102

ESP32BB bill of materials (BOM)

27 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-WROOM
U1
1
NCP1117ST33T3G
U2
1
CP2102
U3
2
4020290A
MMBT3904
Q1, Q2
2
CONN_01X17
P1, P2
1
USB_OTG
P3
2
SWITCH_SPST
SW1, SW2
1
D
D1
1
D02
D
D2
1
D05
D3
1
1NF
1nf
C1
1
0.1UF
1nf
C2
1
10UF
10uf
C3
1
0.1UF
10uf
C4
1
10UF
0.1uf
C5
1
0.1UF
0.1uf
C6
1
1NF
0.1uf
C7
1
100UF
100uf
C8
2
10K
R1, R3
1
10K
R2
Show 3 more
QtyPartRefs
1
100
10K
R4
1
100
R5
1
10K
100
R6

ESP32BB design files

The KiCad project lives in the asukiaaa/esp32bb repository on GitHub; these links point at the commit this page was built from.

ESP32BB: common questions

What microcontroller does the ESP32BB use?

The ESP32BB is built around the ESP32-WROOM, from the ESP32 family.

How big is the ESP32BB PCB?

The ESP32BB measures 43.2 × 61 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32BB?

27 components, from 23 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 ESP32BB design files?

From the asukiaaa/esp32bb repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the ESP32BB design in my own project?

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

Can I test firmware for the ESP32BB 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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