MultiWii 32U4 SE Bedienungsanleitung

Multiwii_32U4_SEManual

Rev01

1.Introduction

TheMultiwii_32U4_SEisanAll‐In‐OneFlight‐Controller(FC),usableforallsizesof

Multirotor helicopters.Itisequippedwithamicrocontroller,a3‐axisgyroscope

(GYRO),

a3‐axisaccelerometer(ACC),a3‐axismagnetometer(MAG)andabarometer(BARO)..

TheFCwasdevelopedforusewiththemultiWii‐software(www.multiwii.com)from

Alexandre Debus–aka.AlexInParis – anditsupportsallflightconditions.

AnAtmel AVR8‐bitmicrocontroller(MCU),the ATMEGA32U4,isusedonthe32U4_SE.

ThisMCUhas6high‐resolutionPWM(ESCsignal)outputs,anon‐chipUSBinterface

(so,noneedforaFTDIadapter)andtheabilitytoreadthesignalsofvariousRXtypes.

A5

A3

A2

A1

D13

D11

D10

D12

TXO

RXI

GND

2~3SLipo

THR

ROLL

PITCH

YAW

AUX1

AUX2

Output

GND

3.3V

SCL

SDA

MiniUSB

3.3V

GND

Signal(RX)

GND

RAW

Input

2.PowerSupply

YourMultiWii_32U4_SEhastwopowersupplies:

‐5VUBEC,connectedtooutput

‐LiPo,connectedtoLiPo 2S‐3S

TheoutputswerealwayssuppliedviaanESCBECoranexternalUBEC!

Attention:Usethe32U4_SEwith2‐3SLiPos only!

5VUBEConly

3.ConnectaRX

NormalRX

YoucanuseastandardRXwith4channels.Becauseofthesensorsusedandthe

Variousflightmodesavailable,a6channelRXisrecommended.

Youonlyneedtoconnectallthreewiresforthethrottlechannel(signalandpower

(+/‐)).Forallotherchannelsonlythesignalwiresareneeded.Thiswillsimplifyyour

wiringandalsosavesomeweight.

PPMsumRX

WithaPPMsumRXyoucanuseupto8channels(atthetimeofwriting)withonly

onesinglepatchwire.

Spektrum Satellite

ASpektrum satellitereceiveroutputsallchannelsofthetransmitterover aserial

interface(UART).WiththeuseofaSpektrum satelliteyoucanuseupto8channels

(aswithaPPMSumreceiver).Inaddition,itisquitesmalland lightweight.

AUX2

AUX1

RUDD

PITCH

ROLL

NormalRX

THR

PPMRX

PPM

‐+s

Spektrum

Satellite

3.3V

GND

4.ConnecttheESC's

TheMultiWii_32U4_SEwasdesignedtoprovideupto8ESCconnectionsplusupto5

additionalservos(maximum,butdependsfromtheconfigurationandtheon‐board

resourcesused!).Theimageshowsthemotorspositionsandspindirections.

ESCconnections

ESC

GND

5VESCBEC

Servoconnections

Servo

GND

5VESCBEC

Quad+ 6

610

QuadX

Tri

910

13 11

510

610

Hex6+

Hex6X 11

11 10

913

6A2

Octo X

CCW

5.Copterinstallation

WheninstallingtheMultiWii_32U4_SEitisbestplacedatthecenterofyour

multicopter.

6.MultiWii Firmware&upload

TheMultiWii_32U4_SEisspeciallydesignedfortheusewithMultiWii

TheLeonardoissupportedwiththelatestArduino version.(1.0.1orlater).

The32U4_SEusesthesamesensors(andaxisorientation)asthepopularFreeIMUv043.

Toactivatethesensorsyouneedtouncommentthe'#defineFREEIMUv043'.

'#define FREEIMUv043

7.Externalsensors

YoumayconnectanyI2Csensortothe32U4_SEthatissupportedbythesoftware.

ButasGYRO,ACC,MAGandBAROwerepresentonthe32U4_SEtheonlyaddition

mightbeanexternalI2CGPS‐module.

ATTENTION:

TheexternalI2Cbusofthe32U4_SEmay

onlybeusedwith3.3Vsensors!

#define A32U4ALLPINS

Tomakeuseofthefullpotentialofthe32U4_SEyouneedtouncommentthe

'#defineA32U4ALLPINS'.

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