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Embedded Pi contains an ARM Cortex-M3 MCU STM32F103RBT6 which belongs to STM32 F1
series of mainstream MCUs.
The STM32 F1 is a series of mainstream MCUs covering the needs of a large variety of
applications in the industrial, medical and consumer markets. With this series of products, ST has
pioneered the world of ARM® Cortex™-M microcontrollers and set a milestone in the history of
embedded applications. High performance with first-class peripherals and low-power,
low-voltage operation is paired with a high level of integration at accessible prices with a simple
architecture and easy-to-use tools.
The features of STM32F103RBT6 are listed below:

32-bit with ARM Cortex-M3 core running at up to 72MHz.

128KB Flash for programming, 20KB SRAM.

Embedded Internal RC 8MHz and 32 kHz, Real-Time Clock.

16-bit Timers with Input Capture, Output Compare and PWM.

16-bit 6-ch Advanced Timer, 2 16-bit Watchdog Timers, SysTick Timer

Rich communication interfaces: 2 SPI, 2 I2C, 3 USART

USB 2.0 Full Speed Interface, CAN 2.0B Active

2 12-bit 16-ch A/D Converter
Figure 3-2 Embedded Pi board layout
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