WeAct Black Pill V3.0

STM32F401CEU6


Board

NameWeAct Black Pill V3.0
PartUnknown
BrandWeAct Studio
OriginChina

Microcontroller

PartSTM32F401CEU6
ManufacturerST-Microelectronics
CoreArm Cortex-M4
Max. Clock Speed84MHz
PackageUFQFPN 48 pins

Internal memories

FLASH512KiB
SRAM96KiB

Oscillators

HSI16MHz
LSI32kHz
HSE25MHz
LSE32.768kHz

Power

Sources
Any +3.3V pin (+3.3V)
Any +5V pin (+5V)
USB connector (+5V)
VDDA pinNo
VSSA pinNo
VREF- pinNo
VREF+ pinNo
Backup batteryPin

Regulator

ManufacturerDiodes Incorporated
PartAP7343 (6T)
PackageX2-DFN1010-4 4 pins
Input+3.52V to +5.25V
Output+3.3V @ 300mA
DatasheetAP7343.pdf

PCB

ColorBlack
Size (w x l)20.78mm x 52.81mm
MountingBreadboard

Remarks

  • Note: The board shown in the images is the variant with an STM32F411CEU6 microcontroller. The PCB is identical.
  • Warning: The +5V pins on this board are directly connected to the +5V pin of the USB connector. There is no protection in place. Do not power this board through USB and an external power supply at the same time.

Pictures

WeAct Black Pill V3.0: Perspective view
WeAct Black Pill V3.0: Perspective view
WeAct Black Pill V3.0: Top view
WeAct Black Pill V3.0: Top view
WeAct Black Pill V3.0: Bottom view
WeAct Black Pill V3.0: Bottom view

Inputs & outputs


Reset button

Name NRST
Reference -
Type Button
Connected to NRST
Mode Active low

BOOT0 button

Name BOOT0
Reference -
Type Button
Connected to BOOT0
Mode Active high

User button

Name KEY
Reference -
Type Button
Connected to PA0
Mode Active low

Power LED

Name PWR
Reference -
Type LED
Connected to +3.3V rail
Mode N.A.

User LED

Name PC13
Reference -
Type LED
Connected to PC13
Mode Sink

Connectors & headers


Header 1 properties

Name Unknown
Reference None
Type pin header (2.54mm, 20x1, male)

Header 1 pins

# Name Function Connected to
1 5V - +5V rail
2 G - Ground plane
3 3.3 - +3.3V rail
4 B10 - PB10
5 B2 - PB2
6 B1 - PB1
7 B0 - PB0
8 A7 - PA7
9 A6 - PA6
10 A5 - PA5
11 A4 - PA4
12 A3 - PA3
13 A2 - PA2
14 A1 - PA1
15 A0 - PA0
16 R - NRST
17 C15 - PC15
18 C14 - PC14
19 C13 - PC13
20 VB - VBAT

Header 2 properties

Name Unknown
Reference None
Type pin header (2.54mm, 20x1, male)

Header 2 pins

# Name Function Connected to
1 B12 - PB12
2 B13 - PB13
3 B14 - PB14
4 B15 - PB15
5 A8 - PA8
6 A9 - PA9
7 A10 - PA10
8 A11 - PA11
9 A12 - PA12
10 A15 - PA15
11 B3 - PB3
12 B4 - PB4
13 B5 - PB5
14 B6 - PB6
15 B7 - PB7
16 B8 - PB8
17 B9 - PB9
18 5V - +5V rail
19 G - Ground plane
20 3.3 - +3.3V rail

USB connector properties

Name Unknown
Reference None
Type USB C

USB connector pins

# Name Function Connected to
A1/B12 - GND Ground plane
A4/B9 - VBUS +5V rail
B8 - SBU2 Ground plane via 5.1kΩ (R8)
A5 - CC1 Ground plane via 5.1kΩ (R8)
B7 - D- PA11 via 10Ω (R9)
A6 - D+ PA12 via 10Ω (R7)
A7 - D- PA11 via 10Ω (R9)
B6 - D+ PA12 via 10Ω (R7)
A8 - SBU1 Ground plane via 5.1kΩ (R8)
B5 - CC2 Ground plane via 5.1kΩ (R8)
B4/A9 - VBUS +5V rail
B1/A12 - GND Ground plane

SWD header properties

Name SW
Reference None
Type pin header (2.54mm, 4x1, male)

SWD header pins

# Name Function Connected to
1 3.3V VCC +3.3V rail
2 SWDIO SWDIO PA13
3 SWCLK SWCLK PA14
4 GND GND Ground plane

Devices


Generic EEPROM properties footprint

Name Unknown
Reference U3
Manufacturer Unknown
Part Generic EEPROM
Marking Unknown
Datasheet Unavailable
Package SOP 8 pins
Description Generic I2C EEPROM

Generic EEPROM pins footprint

# Name Function Connected to
1 - /CS PA4
2 - DO PB4
3 - /WP +3.3V rail
4 - GND Ground plane
5 - DI PA7
6 - CLK PA5
7 - /HOLD +3.3V rail
8 - VCC +3.3V rail