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ENCE 4231 Alexis Romo

alexisromo22·ENCE_4231_Alexis_Romo·PhaseB/2025_04_STM32F103_RobotBrain.kicad_pcb

ENCE 4231 Alexis Romo PCB layout, top view — open source STM32 board by alexisromo22

About the ENCE 4231 Alexis Romo PCB

ENCE 4231 Alexis Romo is an open source STM32 PCB design by alexisromo22, published on GitHub. It is a 2-layer board measuring 90 × 80 mm, with 47 components from 31 distinct parts.

Its main chip is the STM32F103RCTx, from the STM32 family. Other key parts include the USBLC6-2SC6. By type, the board carries 11 connectors, 11 capacitors, 10 resistors, 4 diodes, 3 switches and 2 ICs.

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

Main components on the ENCE 4231 Alexis Romo

STM32F103RCTxUSBLC6-2SC6

ENCE 4231 Alexis Romo bill of materials (BOM)

47 components, 31 distinct parts.

QtyPartRefs
1
STM32F103RCTx
U1
1
USBLC6-2SC6
U2
1
BSS138
Q1
1
16MHz
Y2
1
USB_B_Mini
J1
1
CONN_MPU6050
J2
1
CONN_ULTRA
J3
1
CONN_SWD
J4
1
CONN_5V
J5
1
CONN_3V3
J6
1
CONN_DRIVE
J7
1
CONN_HAL
J8
1
CONN_PS2
J9
1
CONN_TRACK
J10
1
CONN_UART
J11
1
PTCSMD
F1
1
MDBT42T-AT
MDBT42T-AT1
1
JS202011SCQN
S1
1
SW_uP_Reset
SW1
1
SW_USER
SW2
Show 11 more
QtyPartRefs
2
IN-PI55TATPRPGPB
LED1, LED2
1
USB_PWR_LED
D1
1
uP_PWR_LED
D2
1
USER_LED
D3
1
BL_IND_LED
D4
7
0.1uF
C1, C2, C3, C4, C5, C11, C12
1
10uF
C6
1
0.01uF
C7
2
22pF
C8, C9
8
10k
R1, R4, R5, R6, R7, R8, R9, R10
2
22
R2, R3

ENCE 4231 Alexis Romo design files

The KiCad project lives in the alexisromo22/ENCE_4231_Alexis_Romo repository on GitHub; these links point at the commit this page was built from.

ENCE 4231 Alexis Romo: common questions

What microcontroller does the ENCE 4231 Alexis Romo use?

The ENCE 4231 Alexis Romo is built around the STM32F103RCTx, from the STM32 family.

How big is the ENCE 4231 Alexis Romo PCB?

The ENCE 4231 Alexis Romo measures 90 × 80 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ENCE 4231 Alexis Romo?

47 components, from 31 distinct parts. The full bill of materials is listed on this page.

Where can I download the ENCE 4231 Alexis Romo design files?

From the alexisromo22/ENCE_4231_Alexis_Romo repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ENCE 4231 Alexis Romo design in my own project?

The repository has no license, so all rights stay with alexisromo22. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ENCE 4231 Alexis Romo without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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