Multirotorsby Stoyan Zhekov

1

Drones?

2

SkyNet?

3

Ethernet of things (EOT)?

4

How it starts?

5

GY-521

6

3 AXIS !

7

3 axis = Flying !

8

Let’s dream!

9

Parrot AR.Drone

10

Apple Store!

11

Keep it real!

12

Productvs

Platform

13

Platform

• Cheap, Available

• Easy maintain - parts, cheap and available

• Easy changes

• Scalable

• Community

14

FPV vs Acro

15

A bit of theoryAerodynamics

16

Lifting!

17

Torque (momentum) ?

18

Torque!

19

20

Helicopterssingle rotor

21

Helicopter ?!

22

MULTIrotors

23

Tricopter

24

Quadcopter

25

Hexacopter

26

Octocopter

27

This is madness!!

28

Common parts

29

PropellersCW vs CCW

30

LiPoLithium Polymer battery

31

Brushless motors

32

ESCElectronic speed control

33

Flight ControllerAxis, Sensors, DOF

34

Flight Controller

• 3 axis - gyro only

• 6 axis - gyro + accelerometers

• 10 DOF - 3 x gyro, 3 x acc, 3 x compas, baro

35

Flight Controller

36

BECBattery eliminator circuit

37

MultiWii

38

RadioTransmitter (Tx) / Receiver (Rx)

39

Radio

• Freq - 2.4Ghz

• Protocols - FlySky, DSMX (Sp), DEVO (Wk)

• Channels - > 4

• Modes - Mode 2

• RTF , BNF

40

Turnigy 9XR

41

Turnigy 9XR

42

er9x

43

Size matters!Small is good?!

44

45

46

47

48

Useful Sites

•http://www.banggood.com/

•http://www.aliexpress.com/

•http://www.hobbyking.com/

•http://www.rcgroups.com/

49

kick start - SYMA X1

50

kick start (2) - V9x9

51

52

Let’s fly!

53