Description

The Blue Pill is a development board based on ST Microelectronics? STM32F103C9T6 microcontroller that has an ARM Cortex-M3 core that runs at 72MHz max. Software libraries are available that allow users to program the chip using the Arduino IDE. It is a 32-bit Arduino compatible development board that features the STM32F103C8T6, a member of the STM32 family of ARM Cortex-M3 core microcontrollers. This board aims to bring the 32-bit ARM core microcontrollers to the hobbyist market with the Arduino style form factor.

The Blue Pill has 37 GPIO pins spread across four ports ? A and B (16 pins), C (3 pins) and D (2 pins). Each pin has a current sink/source ability of 6mA. Pull-up and pull-down resistors can be enabled on each of the pins.

Most pins have extra functionality as well:

• Serial ports ? receive and transmit data via the UART protocol
• I2C ports ? two-wire communication via the IIC protocol
• SPI ? serial communication
• PWM
• Pin 13 has a built-in LED

Features

• Input voltage : 5V
• Operating voltage : 3.3V
• 10 Analog inputs
• 37 Digital IO pins
• Maximum current per pin : 6mA
• 64/128 KB Flash memory
• 20KB SRAM memory
• 72MHz clock speed
• Support I2C, SPI, UART, CAN, USB communications

This is the comparison between Arduino Uno and STM32 blue pill.

Blue Pill vs. Arduino Uno

Attachments

• Introduction to STM32 Blue Pill – STM32-base
• Tutorial : Getting Started with STM32 (Blue Pill) using Arduino IDE: Blinking LED – CircuitDigest
• Schematic
• Pinout

** The product images are for illustration purposes only, this module comes with unsoldered header pins, kindly contact us if you need soldering help **