Board
| Name | Blue Pill |
| Part | Unknown |
| Brand | Unknown |
| Origin | China |
Microcontroller
| Part | STM32F103C8T6 |
| Manufacturer | ST-Microelectronics |
| Core | Arm Cortex-M3 |
| Max. Clock Speed | 72MHz |
| Package | LQFP 48 pins |
Internal memories
| FLASH | 64KiB |
| SRAM | 20KiB |
Oscillators
| HSI | 8MHz | |
| LSI | 40kHz | |
| HSE | 8MHz | |
| LSE | 32.768kHz |
Power
| Sources | Any +3.3V pin (+3.3V) Any +5V pin (+5V) USB connector (+5V) |
| VDDA pin | No |
| VSSA pin | No |
| VREF- pin | No |
| VREF+ pin | No |
| Backup battery | None |
Regulator
| Manufacturer | Shanghai TX Electronics Sci-Tech Co., Ltd |
| Part | TX6211B (DE=A1D) |
| Package | SOT23-5 5 pins |
| Input | +3.6V to +5.5V |
| Output | +3.3V @ 300mA |
| Datasheet | TX6211B.pdf |
PCB
| Color | Blue |
| Size (w x l) | 23mm x 53mm |
| Mounting | Breadboard |