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STM32L0-ESP32-Breakout-Board

mohamedyanis·STM32L0-ESP32-Breakout-Board

STM32L0-ESP32-Breakout-Board layout, top view — open source ESP32 board by mohamedyanis
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About the STM32L0-ESP32-Breakout-Board

STM32L0-ESP32-Breakout-Board is an open source ESP32 PCB design by mohamedyanis, published on GitHub under the BSD-3-Clause license. It is a 4-layer board measuring 50 × 50 mm, with 31 components from 19 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the AMS1117-3.3 and STM32L031G6U6. By type, the board carries 9 capacitors, 6 resistors, 5 connectors, 3 ICs, 3 switches and 3 diodes.

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

From the project

STM32L0 and ESP32 MCU based PCB for PID and IOT applications designed using KiCad.

This is a small breakout Printed Circuit Board (PCB) that is based on the STM32 microcontroller as well as the ESP32 dev module. The PCB is designed using the free and open source software KiCad.

If you want to review the PCB or yoou wanna edit the schematics/layout, you only need to install KiCad software to your machine.

Go to the Official KiCad Download Page. Select your operating system. * Download the executable file and install it.

STM32L0-ESP32-Breakout-Board, from the project README
From the project README

Main components on the STM32L0-ESP32-Breakout-Board

AMS1117-3.3STM32L031G6U6ESP32-WROOM-32

STM32L0-ESP32-Breakout-Board bill of materials (BOM)

31 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AMS1117-3.3
U1
1
STM32L031G6U6
STM32L031G6Ux
U2
1
ESP32-WROOM-32
U3
1
16MHZ
16MHz
X1
1
Conn_01x02
J1
4
Conn_01x03
J2, J3, J4, J5
3
C231329
SW_SPST
SW1, SW2, SW3
1
C72043
Green
D1
1
C72041
Blue
D2
1
C72038
Yellow
D3
1
C85817
100 @ 100MHz
FB1
2
22U
22u
C1, C2
1
10U
10u
C3
2
100N
100n
C4, C5
1
10N
10n
C6
1
1u
C7
2
10P
10p
C8, C9
3
1K5
R1, R4, R6
3
10K
10k
R2, R3, R5

STM32L0-ESP32-Breakout-Board design files

The KiCad project lives in the mohamedyanis/STM32L0-ESP32-Breakout-Board repository on GitHub; these links point at the commit this page was built from.

STM32L0-ESP32-Breakout-Board: common questions

What microcontroller does the STM32L0-ESP32-Breakout-Board use?

The STM32L0-ESP32-Breakout-Board is built around the ESP32-WROOM-32, from the ESP32 family.

How big is the STM32L0-ESP32-Breakout-Board?

The STM32L0-ESP32-Breakout-Board measures 50 × 50 mm, has 4 copper layers and is 2.035 mm thick.

How many components are on the STM32L0-ESP32-Breakout-Board?

31 components, from 19 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 STM32L0-ESP32-Breakout-Board design files?

From the mohamedyanis/STM32L0-ESP32-Breakout-Board 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 STM32L0-ESP32-Breakout-Board design in my own project?

Yes, under the terms of its BSD-3-Clause license, which mohamedyanis chose for the repository.

Can I test firmware for the STM32L0-ESP32-Breakout-Board 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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