STM32
What Is an STM32?
STM32F103C8
Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 72 MHz CPU, motor control, USB and CAN.
It's a very fast, very cheap microcontroller.
--me
Visit the ST Website
https://www.st.com/en/microcontrollers-microprocessors/stm32f103c8.html