STM32F103C8T6 Blue Pill Development Board

$30.19 $55.85
1)Chip details: STM32F103C8T6 Kernel: Cortex-M3; Operating frequency: 72MHz; Storage resources: 64K Byte Flash, 20KByte SRAM; Interface Resources: 2x SPI, 3x USART, 2x I2C, 1x CAN, 37x I / O ports, Analog-to-digital conversion: ADC (12-bit / 16-channel) PWM: 16-bit/15 channel. Timers: 3 general timers and 1 advanced timer Debug Download: Support JTAG / SWD debug interface to download, support for IAP.   2) internal RTC clock. 3)On board 3.3V voltage regulator. 4)Boot0 and boot1 selection jumpers.
Arm Development Board

Arm Development Board