Introduction - If you have any usage issues, please Google them yourself
The STM series belongs to the 32 - bit arm microcontroller of the middle and low end, which is produced by stmicroelectronics ( st ) company and its core is cortex - m3. The series chips can be divided into three categories according to the size of flash: small capacity ( 16k and 32k ), medium capacity ( 64k and 128 ), large capacity ( 256, 384, and 512k ). Chip integrated timer, can, ADC, SPI, I2C, USB, UART, and other functions.