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MyFlyDream Crosshair AutoPilot, Manual

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MyFlyDream Crosshair AutoPilot Manual Download Page 2

Thank you for purchasing the MyFlyDream CROSSHAIR AutoPilot (hereinafter referred to as AP).   
 
Notes and Disclaimer 
 
     Please follow this manual to get familiar with the AP and to operate it correctly. The AP is a 
precision  electronic  device.  Read  this  manual  carefully  to  avoid  damaging  the  device,  yourself, 
other people, your aircraft and other property.   
     The AP is designed to use with RC models only. Please use it in compliance with applicable 
local laws. The reliability and accuracy of navigation and/or tracking system depend on a number 
of factors. A strong electromagnetic interference, strong or gusty winds, bad GPS status and other 
reasons may lead to unwanted results. Please carefully consider all risks.   

Any  loss  or  damage  caused  by  the  AP  system  is  solely  the  operator’s  responsibility;  MFD,  its 
agents,  retailers,  any  parties  associated  with  MFD  shall  under  no  circumstances  be  held 
responsible for any loss or damage caused by using this AP.

 

Please do not start using this device unless you agree with the above paragraph.

 

     We reserve  the right  to  continuously  improve  the  product  performance,  so  this  document 
may  be  not  in  full  compliance  with  the  AP  you  purchased.  Please  check  our  website 
www.MyFlyDream.com for updated versions of the manual and the firmware. 
 

Summary of Contents for Crosshair AutoPilot

Page 1: ...al is a beta version Many new functions of Crosshair AP have not been described here yet Please check our website frequently to get a new update version www MyFlyDream com Copyright 2010 MyFlyDream Translated with the help of FPV Model MFD authorized reseller ...

Page 2: ...umber of factors A strong electromagnetic interference strong or gusty winds bad GPS status and other reasons may lead to unwanted results Please carefully consider all risks Any loss or damage caused by the AP system is solely the operator s responsibility MFD its agents retailers any parties associated with MFD shall under no circumstances be held responsible for any loss or damage caused by usi...

Page 3: ... a barometer One of the autopilot s two dedicated processors is used to compute and control the attitude of the model aircraft while another processor handles the OSD on screen display images and flight logic Based on these hard and software features the autopilot can be used to enhance the stability of the aircraft and carefully and precisely control the aircraft to make it fly by the user set ro...

Page 4: ...ching or the relative position and altitude of other aircrafts can be visualized on the screen as a color coded 3D model 6 A more comprehensive support of MAVLink protocol allowing the user to plan the route and set the waypoints with MFD ground station software as well as use parameter reading setting of Mission Planner app 7 Precise flight capability for professional missions such as aerial surv...

Page 5: ...2 WIRING AND CONNECTIONS The pins are grouped into A through E connectors based on their functions as shown in the chart above Connections to other parts ...

Page 6: ...mmend to use 12V to power the flight controller 12V power can be obtained from an optional MFD 12V DC DC power module or from a 3s battery in this case the AP will provide 12V directly to the camera and Vtx B GPS Connector B is for GPS PIN USED FOR B1 TX Connect to GPS RX B2 RX Connect to GPS TX B3 5V B4 GND C DATA Connector C is for data communication used with digital radio Bluetooth module USB ...

Page 7: ...AP D3 5V Out D4 GND D5 SDIO CLK TF Card Clock D6 SDIO CMD TF Card Command D7 SDIO D0 TF Card Data D8 CAN RX CAN BUS L D9 CAN TX CAN BUS H D10 UART_A RX D11 UART_A TX D12 ADC IN D13 Video OUT Connect to VideoTX D14 UART_B RX D15 UART_B TX D16 IIC CLK IIC Clock D17 IIC DAT IIC Data D18 D24 PWM1 PWM7Input D27 Also supports PPM and SBUS ...

Page 8: ...o channels 2 to 6 of the radio Rx Channels 1 6 are for PWM The input channels only have the signal wire Channel 7 is for input connector with complete 5V power and GND Video input connect to the camera Video output connect to monitor or VTx PWM Channel 7 connected to PPWM Sbus output of the radio Rx which is auto detected by the AP The red wire provides 5V power Airspeed connector RSSI 0 3 3V Anal...

Page 9: ...e flying wing and V tail aircraft E2 Elevator or the right rudder of the flying wing and V tail aircraft E3 Throttle servo or ESCs E4 Rudder servo E5 Reserved based on firmware version VTOL composite wings etc E6 Reserved based on firmware version VTOL composite wings etc E7 Reserved based on firmware version VTOL composite wings etc E8 Reserved based on firmware version VTOL composite wings etc E...

Page 10: ...ase refer to the diagram below for typical setup The arrow on the flight controller case needs to point to the nose If the flight controller is installed at Left90 Right90 180 relevant menu settings must be edited As most parameter settings need to be done thru OSD menu for the first calibration we recommend connecting the AP video output directly to a monitor When Crosshair Autopilot detects the ...

Page 11: ... value or to enter the next level sub menu Moving ELE to LEFT to quit editing an item or to go back to the upper level menu When editing values switch CH6 to LOW MID HIGH position to select 1 5 10 step length During the initial installation of the Autopilot on the aircraft follow the procedure Initial setup Please follow this procedure to setup the AP 1 Enter OSD menu SAVE LOAD LOAD PRE SET and se...

Page 12: ...rough the AP to the servos If your servos work correctly before you install the AP you don t need to reverse the servo setup of your transmitter in this step We also suggest to use 100 100 travel range end points setting in your transmitter 3 CH5 in LOW CH6 in MID AP is in STB stabilized mode now The OSD will display STB instead of MAN Banking the plane in STB mode we should see the servos always ...

Page 13: ...or instance if when the plane nose up elevator goes upward you have to reverse the PLANE SETTINGS ELE status 4 Execute a Common calibration This is to tell the AP how it s installed in the plane Keep the plane still make sure the right wing and left wing are level and the pitch are on the normal fly attitude Normally we need a bit nose up to create an attack angle for the wing Enter the OSD menu n...

Page 14: ...SORS CAL JOY STICK 3 AP alignment angle errors You can also modify this parameters manually by OSD menu 3 4 PLANE SETTINGS ROLL TRIM and 3 5 PLANE SETTINGS PITCH TRIM Now Exit the menu you should see the OSD artificial horizon line AHL almost matches the real horizon line 1 OSD Layout OSD display will slightly change according to the fly modes OSD display elements introduction 1 Flying time mm ss ...

Page 15: ...ly display when an air speed sensor is connected to AP 11 Throttle indicator Comparing with the speed bar beside the throttle indicator a full length line of the speed bar indicates 100 throttle output The throttle value of this screenshot is about 25 12 Relative altitude Refers to the altitude of the HOME location It s from the baro meter The unit is in meter or feet 13 Climbing rate indicator A ...

Page 16: ...ETTINGS BR AREA LON LAT GPS ASL AboveSeaLevel longitude latitude ROLL PITCH ROLL PITCH angle of the plane EFFICIENCY ROLL RATE G Force The data shown in the screenshot is EFFICIENCY 24 TopView Radar This small icon indicates your plane flying on the map The center of the screen is the location you tookoff The 12 clock direction on the screen aligns to NORTH 25 26 Plane icon This icon is always sho...

Page 17: ...t one of the 2 modes via PLANE SETTINGS CH5 H CH6 M Circle mode AP will use the position that you engage Circle mode as the center to circle You can use ELE to adjust the altitude that AP maintains Altitude mode AP will maintain the altitude that you engage Altitude mode You can use ELE to adjust the altitude that it maintains AP will also lock the cruise direction after you release all sticks for...

Page 18: ...air when you release all the control sticks In ideal case AP should control the plane to fly straight and maintain the altitude well But sometimes it doesn t Land the plane and follow the procedures below to tune it better a If the plane oscillates in roll that means the ROLL P is too high Go to the OSD setting menu and navigate to AUTO PILOT SETTINGS ROLL P decrease the ROLL P value If the plane ...

Page 19: ...T SETTINGS CRUISE P 1 or 2 then try again b If the plane flew oscillating on its path just like a snake that means the CRUISE P is too big Decrease AUTO PILOT SETTINGS CRUISE P and try again c If the plane not able to reach the SAFE ALT and maintain the altitude increase AUTOPILOT SETTINGS ALT P If the plane oscillates around the altitude decrease AUTOPILOT SETTINGS ALT P d If the plane speed is t...

Page 20: ...cruise speed based on his own setup variables 1 6 CRUISE THROTTLE In percent It s a recommended value defined by the user For example your plane needs 50 throttle to fly at CRUISE SPEED please set this parameter to 50 The AP will refer to your recommended value but won t lock on it 1 7 THROTTLE P The gain of automatic throttle control Don t attempt to change this value It s for experts only 1 8 RO...

Page 21: ... sticks in natural position OSD will display NEED STB MODE Switch CH5 to LOW then switch CH6 to MID OSD displays LAUNCH and we are ready to go Just give enough power then throw your plane out to launch it You can only activate the LAUNCH MODE when speed 5kmph 1 23 MAINTAIN ALT Force the plane to maintain the current altitude when RTH at distance 500m Can t be below SAFE ALT At distance 500m the pl...

Page 22: ... keep enough attack angle to flight A positive value trim the plane to nose up A negative value trim the plane to nose down ROLL TRIM and PITCH TRIM are both set according to the attitude of the plane when execute COMMON CALIBRATION 2 7 RUDDER MIX Mix rudder to the aileron Use this parameter to tell the plane to turn with both its aileron and rudder A too big value will cause to a extremely turnin...

Page 23: ...he upper left corner Looks like WPT 12 23 Before time is up AP will not switch from WPT mode to RTH mode That means the plane will not RTH even you turn off your transmitter now We can activate the EXCEED MODE when we attend to fly to a waypoint which is beyond our radio control range Move the RUD stick again to quit EXCEED MODE The minimum timeout value is 30 seconds The maximum timeout value is ...

Page 24: ...alibration procedure no need to keep the plane level strictly which is necessary for COMMON CALIBRATION This calibration will take about 8 seconds You need to warm up MFD AP for at least 3 minutes before you calibrate GYRO ACCL 4 2 CAL MAG Calibrate the compass IC After activate this calibration you have 20 seconds to turn rotate the plane in 360 degrees then turn the plane over and do a 360 degre...

Page 25: ...peration 5 2 DATA RADIO Select the baudrate of the DATA port to work with a MAVLink GCS GroundControlStation Available options are MFD 1200 9600 19200 38400 57600 115200 MFD mean the data port use MFD protocol to instead of MAVLink protocol on DATA port MFD protocol is used for an audio tracking AAT But with 5 0 or higher version AAT we have a great video downlink so the audio downlink becomes uni...

Page 26: ... to move the way point to UP DOWN LEFT RIGHT N S E W To change the altitude of the way point please put CH6 MID To set the altitude lower than SAFE ALT you need to put CH6 HIGH You can also zoom in out this map with your THR stick To quit this screen please lower your THR and move your THR stick to LEFT 6 11 CLEAR ALL Clear all way points data There are 2 kinds of waypoints A Defined by the above ...

Page 27: ...h attitude of the plane if you have a proper data radio setup Many GCS that support MAVLink can be used We take APM Planner as a example here First we need to establish a connection between AP and your computer cellphone A data radio a pair of bluetooth modules or a USB TTL cable does its job Let s say we use USB TTL cable First we plug the USB TTL cable to the 4pin DATA port The black wire in the...

Page 28: ... on the map with your mouse Make sure you set the correct altitude for the way points AP can handle maximum 20 way points When all way points are defined click Write WPs button on the bottom right corner to upload the way points to AP ...

Page 29: ...Here Select CIR mode on the transmitter right click on MissionPlanner main window and click Fly To Here from the context menu Input the altitude your plane will fly to the point and circle above it Viewing and Editing parameters by mission planner Select CONFIG TUNING Full Parameter List in mission planner you can view and edit some important parameters of the AP With a pair of data radio you can ...

Page 30: ... control panel Device Manager to see the COM port number that assigned by the system For example it is COM4 as shown in the picture below 1 Plug the USB TTL blue connector in the GPS port of AP Also blue 3 Download the update program http www myflydream com inc lib download download php DId 43 Run the MFD_Update exe program Select corresponding COM port 4 Download the most update firmware ...

Page 31: ... from our website 6 Click Update Wait until complete 9 FAQ Q Why I can t see OSD on my monitor A You need to feed video signal from a camera to MFD AP to get video output Q Why my receiver and servos are not powered by the AP A AP doesn t supply power to your receiver and servos You need to use a BEC to power them ...

Page 32: ... plane can fly almost levelly in MAN mode If it can t please use mechanical electric trims to adjust it Once you trim it on the radio please remember to CAL JoySticks Then test it in STB mode If it sinks please increase the AOA Plane settings PITCH TRIM a little bit to increase the lift during level flight If the plane still not able to climb to the altitude we need in ALT RTH WPT CIR modes increa...

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