Black Pill STM32F411CEU6 Development Board

Overview

Black Pill STM32F411CEU6 Development Board featuring STMicroelectronics' STM32F411CEU6 ARM Cortex-M4 32-bit microcontroller with floating-point unit (FPU) running up to 100MHz. A compact, high-performance, and low-cost development board designed for embedded systems, robotics, motor control, DSP applications, industrial automation, IoT devices, USB applications, and real-time control systems.

The Black Pill board provides significantly higher performance than STM32F103 Blue Pill boards while maintaining a compact breadboard-friendly form factor. Features USB Type-C connectivity, onboard boot/reset buttons, high-speed peripherals, and support for STM32CubeIDE, Arduino IDE, PlatformIO, MicroPython, and bare-metal development.

Specifications

Parameter	Value
Model	Black Pill STM32F411CEU6
Main Chip	STM32F411CEU6
CPU Core	ARM Cortex-M4 with FPU
Clock Speed	Up to 100MHz
Flash Memory	512KB
SRAM	128KB
Architecture	32-bit
Operating Voltage	1.7V – 3.6V
Logic Level	3.3V
GPIO Pins	Up to 37
ADC	1× 12-bit ADC (16 channels)
DAC	None
UART / USART	3×
SPI / I2S	Up to 5×
I2C	3×
USB	USB 2.0 Full Speed OTG
Timers	Up to 11
RTC	Yes
DMA	Yes
Debug Interface	SWD / JTAG
USB Connector	USB Type-C
Crystal Oscillator	25MHz HSE + 32.768kHz RTC
Dimensions	~53mm × 21mm

Pin Configuration

Interface	Pins
UART1	PA9 (TX), PA10 (RX)
UART2	PA2 (TX), PA3 (RX)
SPI1	PA5 (SCK), PA6 (MISO), PA7 (MOSI)
I2C1	PB6 (SCL), PB7 (SDA)
USB FS	PA11 (D-), PA12 (D+)
ADC Inputs	PA0–PA7, PB0, PB1
PWM Outputs	Multiple GPIOs
User LED	PC13
User Button	PA0
SWD	PA13 (SWDIO), PA14 (SWCLK)
Power	3V3, 5V, GND

Features

• ARM Cortex-M4 with FPU — hardware floating-point acceleration
• 100MHz CPU frequency — high embedded processing performance
• 512KB Flash + 128KB SRAM — large memory capacity
• USB Type-C connector — modern reversible USB interface
• USB OTG support — device and host capability
• DSP instruction support — digital signal processing applications
• Compact breadboard-friendly design
• High-speed peripherals — SPI, I2C, UART, USB
• Real-time embedded performance
• MicroPython compatible
• Arduino IDE support
• STM32CubeIDE support
• Low-cost professional development board
• Onboard BOOT and RESET buttons
• SWD debugging support

Black Pill STM32F411 vs Blue Pill STM32F103

Feature	Black Pill F411	Blue Pill F103
CPU Core	Cortex-M4 + FPU	Cortex-M3
Clock Speed	100MHz	72MHz
Flash	512KB	64KB
SRAM	128KB	20KB
USB Type	USB-C	Micro USB
DSP Support	Yes	No
Floating Point Unit	Yes	No
I2C	3×	2×
SPI	5×	2×
Performance	Very High	Medium
Best For	Advanced embedded	Basic embedded

Wiring Common Modules

SSD1306 OLED Display

OLED	Black Pill
VCC	3.3V
GND	GND
SDA	PB7
SCL	PB6

HC-SR04 Ultrasonic Sensor

HC-SR04	Black Pill
VCC	5V
GND	GND
TRIG	PA0
ECHO	PA1

WS2812B LED Strip

WS2812B	Black Pill
VCC	5V
GND	GND
DATA	PA8

L298N Motor Driver

L298N	Black Pill
ENA	PA8
IN1	PB0
IN2	PB1
IN3	PB10
IN4	PB11
ENB	PA9
GND	GND

Common Applications

• Robotics systems
• Motor control
• DSP applications
• Industrial automation
• USB HID devices
• Real-time control systems
• IoT gateways
• Embedded Linux peripherals
• Audio processing
• Sensor data acquisition
• Drone controllers
• Smart devices

Getting Started

STM32CubeIDE Setup

1. Download STM32CubeIDE from STMicroelectronics
2. Create new STM32 project
3. Select STM32F411CEUx
4. Configure peripherals using CubeMX
5. Generate code and build project
6. Upload using ST-Link

Arduino IDE Setup

1. Open Arduino IDE
2. Add STM32 Board Manager URL: https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json
3. Install STM32 core package
4. Select: Generic STM32F4 series
5. Board: BlackPill F411CE
6. Upload via USB or ST-Link

MicroPython Setup

1. Download STM32F411 firmware
2. Enter bootloader mode
3. Flash firmware using DFU or STM32CubeProgrammer
4. Connect via serial terminal or Thonny IDE

Basic LED Blink Example

#define LED_PIN PC13

void setup() {
    pinMode(LED_PIN, OUTPUT);
}

void loop() {

    digitalWrite(LED_PIN, LOW);
    delay(500);

    digitalWrite(LED_PIN, HIGH);
    delay(500);
}

Package Includes

• 1× Black Pill STM32F411CEU6 Board

Notes

• GPIO logic level is 3.3V only
• PC13 onboard LED is active LOW
• Some GPIO pins are not 5V tolerant
• USB Full-Speed may require 96MHz clock configuration
• External ST-Link debugger recommended for development
• Board variants may differ slightly between manufacturers
• Do not power USB and external 5V simultaneously

Applications in Advanced Embedded Systems

The STM32F411 Black Pill is widely used in:

• Professional embedded development
• Real-time robotics systems
• USB communication devices
• Digital signal processing
• Industrial monitoring systems
• High-speed sensor interfaces
• Motor control systems
• IoT edge devices
• Automation controllers

Its Cortex-M4 architecture with hardware floating-point support makes it significantly more powerful than entry-level STM32F1 boards for computationally intensive applications.