A simple diary of my experience with quadcopters.

1. Multirotors
by Stoyan Zhekov
1

2. Drones?
2

3. SkyNet?
3

4. Ethernet of things (EOT)?
4

5. How it starts?
5

6. GY-521
6

7. 3 AXIS !
7

8. 3 axis = Flying !
8

9. Let’s dream!
9

10. Parrot AR.Drone
10

11. Apple Store!
11

12. Keep it real!
12

13. Product
vs
Platform
13

14. Platform
• Cheap, Available
• Easy maintain - parts, cheap and available
• Easy changes
• Scalable
• Community
14

15. FPV vs Acro
15

16. A bit of theory
Aerodynamics
16

17. Lifting!
17

18. Torque (momentum) ?
18

19. Torque!
19

20. 20

21. Helicopters
single rotor
21

22. Helicopter ?!
22

23. MULTIrotors
23

24. Tricopter
24

25. Quadcopter
25

26. Hexacopter
26

27. Octocopter
27

28. This is madness!!
28

29. Common parts
29

30. Propellers
CW vs CCW
30

31. LiPo
Lithium Polymer battery
31

32. Brushless motors
32

33. ESC
Electronic speed control
33

34. Flight Controller
Axis, Sensors, DOF
34

35. Flight Controller
• 3 axis - gyro only
• 6 axis - gyro + accelerometers
• 10 DOF - 3 x gyro, 3 x acc, 3 x compas, baro
35

36. Flight Controller
36

37. BEC
Battery eliminator circuit
37

38. MultiWii
38

39. Radio
Transmitter (Tx) / Receiver (Rx)
39

40. Radio
• Freq - 2.4Ghz
• Protocols - FlySky, DSMX (Sp), DEVO (Wk)
• Channels - > 4
• Modes - Mode 2
• RTF , BNF
40

41. Turnigy 9XR
41

42. Turnigy 9XR
42

43. er9x
43

44. Size matters!
Small is good?!
44

45. 45

46. 46

47. 47

48. 48

49. Useful Sites
• http://www.banggood.com/
• http://www.aliexpress.com/
• http://www.hobbyking.com/
• http://www.rcgroups.com/
49

50. kick start - SYMA X1
50

51. kick start (2) - V9x9
51

52. 52

53. Let’s fly!
53