4 jonathan STM32F103 2011-04-06 SMD LQFP-48 IC false STM32F103 Medium density Cortex-M3 microcontroller. http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00161566.pdf 4

21

5

22

6

23

7

8

24

9

25

10

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

11

12

13

14

15

16

17

18

19

20

1

2

3