STM32 "Blue Pill" (STM32F103C8T6)
various (generic/clone boards)
72
MHz
Clock Speed
1
Cores
CPU
37
Pins
GPIO
General
Chipset
STM32F103C8T6 (ARM Cortex-M3)
RAM
20KB SRAM
Storage
64KB flash (often actually 128KB on clones)
USB
1x micro USB (device, needs external programmer like ST-Link for flashing)
Connectivity
10x analog in, 2x SPI, 2x I2C, 3x UART, CAN
Power
5V micro USB or 3.3V
Form Factor
53 x 22mm
Price
$2-$4
OS Support
none (bare metal)
Frameworks & Languages
STM32Cube HALArduino STM32 corePlatformIOlibopencm3