Features / Specs
- Brand / Manufacturer: WeAct Studio
- Model: BluePill Plus
- MCU: ST Micro STM32F103CBT6 (ARM Cortex-M3 32-bit RISC core)
- CPU Speed (Max): 72MHz
- Flash Memory: 128kB
- SRAM: 20kB
- External Oscillator(s): 1x 8MHz High Speed Crystal Oscillator / 1x 32.768kHz Low Speed Crystal Oscillator
- Supply Voltage Range: 3.3V – 5VDC
- Operating Voltage: 3.3VDC (3.3V LDO has a max current rating of 100mA)
- USB Connector Type: Female USB Type-C Port
- I/O Pins: Up to ~37 GPIO pins with interrupt support (Most 5V tolerant – check datasheet)
- Communication Peripheral(s): 3x USART / 2x SPI / 2x I2C / 1x CAN Interface (2.0B Active)
- Timer(s): Up to 7 (3x 16-bit General Purpose / 1x 16-bit Motor Control PWM Timer / 2x Watchdog Timers / 1x SysTick Timer)
- Analog Peripheral(s): 2x 12-bit 2.4MSPS ADC (Up to 16 Channels)
- On-Board Connectivity: USB 2.0 (Full‑Speed) Interface
- Programming & Debugging Interface: 4-Pin SWD Interface
- LEDs & Buttons: Power LED (PWR) / PB2 LED (PB2) / User, NRST, and BOOT0 Tactile Buttons
- Development Support: Supports STM32CubeIDE, IAR, ARM Keil, GCC‑based IDEs / Includes STM32Cube HAL libraries, middleware, example projects and access to ARM mbed resources
- Dimensions: ~(52.81mm x 20.78mm)
- Header Pin Pitch: 2.54mm
- Spacing Between Pin Rows (Center to Center): ~15.24mm (Breadboard Compatible)




