SN_L_user_manualx SN L User Manual V2.0
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SN-L user manual SN-L FixedWingFLightController + Pixel OSD Ver 2.0 FW 5.0+ LeFeiRC 2018/10/10 1 SN-L user manual WARING： Please strictly observe the relevant national laws and regulations for safe flight. We do not advocate flying high, flying far, experience the fun of the model airplane in a fully safe environment, and create a good environment for model airplane sports! Before using the flight control, you must fully understand the various safety details and deeply understand that the flight is risky. It is impossible to be completely reliable on the equipment and any electronic products on the aircraft. You should use the Sinan (SN_L) fixed-wing flight control to evaluate the product and use the system according to relevant regulations. The system provider does not use the product for any use. Responsible for direct or indirect losses and consequences. i. 目录 Flight Mode： ...................................................................................................................................................... 4 How to Switch Flight Mode： ......................................................................................................................... 4 FC Iinstal： ............................................................................................................................................................ 5 Remote Contoller： ........................................................................................................................................... 6 Pre Flight checklist：.......................................................................................................................................... 7 Flight and control： ........................................................................................................................................... 8 OSD Menu ............................................................................................................................................................. 9 Firmware upgrade............................................................................................................................................ 10 2 SN-L user manual FEATURE： size, 38*25mm; weight 6.8g Pixel OSD，no need to set parameters through the computer Built-in acceleration, gyroscope, magnetic compass, barometer Built-in high-performance AHRS algorithm for optimization of fixed wings Support for expanding high-precision digital airspeed meters Support SN_AAT(Automatic Antenna Track), built-in AAT algorithm, no need for external AAT onboard module Support firmware upgrade Support PPM, SBUS interface receiver, independent RSSI interface Support 4-channel PWM output, 2-channel AUX Support wing, v-tail, T-tail, 6 flight modes Interface： RSSI Connect to receiver RSSI channel PPM Connect to SBUS/PPM A1 Extend other functional interfaces A2 Extend other functional interfaces AIL Aileron servo interface ELE Elevator servo interface / Airspeed interface THR ESC interface RUD RUD servo interface GPS Connect to GPS PMU Power/Camera/VTX/Current, all in one interface Connect AirSpeed Meter Step1: connect ELE servo to AUX1/AUX2 channel Step2: set AUX1/AUX2 channel as ELE function Step3: connect airspeed meter to ELE channel Step4: power on again If you should change ELE servo direction, you should set AUX1/AUX2 channel direction Power Supply All the above interfaces are powered by the external 5v BEC module, and the flight controller does not output 5V to supply power to these interfaces. 3 SN-L user manual Flight Mode： MANUAL Remote control directly controls the aircraft STAB Auto level RTH Return to home HOVER Altitude hold and cycle。 AH Aircraft hold altitude and flight route(with GPS) ACRO Gyro mode SUB-MODE Switch mode to slave mode RTH Mode When the return altitude is higher than the set height, for example, returning at a height of 150m. If the set return altitude is 120m, the aircraft will return at a height of 150m, and then decrease the altitude to 120m when approaching the home position. If the return altitude is less than 30m, the aircraft will climb to 30m before turning. The RC cannot control the aircraft during the RTH mode, but the throttle can be raised by the throttle stick. In auto cruise mode, the throttle is automatically calculated based on the speed. In the case of a downwind or a large wind, the throttle can be raised by the remote control to prevent the aircraft from stalling. for example if auto throttle is 45%, but the RC throttle is 50%, then FC output 50% throttle. subMode If you want to use subMode switch, you must set a subMode in mode switch,. AltHold mode FC will lock the route if GPS is connect. Otherwise only hold altitude. When GPS is connected, RUD stick can change the head direction, ELE stick can control climb down/up speed; if move AIL stick FC will enter stab mode. How to Switch Flight Mode： th SN_L sets the RC channel 5 as the main mode switch, so the 5 channel of the RC must be set to a three-segment switch; the subMode switch can be selected or not used when the remote controller is calibrated. Example: ModeSwitch subModeSwitch STAB RTH SUB-MODE HOVER MANUAL ALtHold 4 SN-L user manual FC Iinstal： ① PMU Module CAM-12V 5V 12V FC PMU BAAT : BAAT connect to battary old version new version ② Power Interface PMU Module input 3S-6S battery, output 12v-3A & 5v-3A，max current 85A 。 Servo and Receiver is powered by external 5v Power Module 。 FC and GPS is powered by PMU 。 Do not overload the PMU 。 ③ Install direction 3 install direction：-> 0° Arrow point to head 180° Arrow point to rear 90° Arrow point to left The FC installation should try to avoid the vibration source and keep away from the motor; try to install it near the center of gravity. Be sure to recalibrate the level after changing the installation direction ④ How to connect servo Interface AIL ELE THR Wing Servo1 Servo2 ESC T tail AIL servo ELE servo ESC V tail AIL servo ESC RUD AUX1 AUX2 ALL ALL RUD servo ALL ALL ELE servo1 ALL ALL Type ELE servo1 It is recommended that you use an external 5v power module to servos and receiver. 5 SN-L user manual AUX channel AUX channel can extend other functions, such as outputting RC channels, or multiplexing AIL，ELE，THR. ⑤ Correct Control Surfaces Movement Switch to stab mode, your servo should move like this: OSD Picture： Waring info Flight mode Ground speed Alt Air speed Total voyage Home Distance Some wide dynamic (WDR) cameras may cause OSD images to be garbled or jittery. Try to turn off WDR. Although we have tested a variety of WDR cameras to work properly, inevitably there will be incompatibilities. It is recommended to use a PAL camera to get a more detailed picture. After Landing, OSD will show flight summary. Remote Contoller： Calibrate RC Please make sure all channels of AIL,ELE,THR,RUD are in the first four channels. Make sure the fifth channel as mode switch is a three-segment switch. When a new RC is connected to the FC, it will pop up a calibration screen: Page1：reset all channels，flip mode switch enter next step Clear all offsets, sticks is homed, and the RC does not set the range limit Page2：throttle Up，flip mode switch enter next step Get throttle MAX value Page3：throttle Down，flip mode switch enter next step Get throttle MIN value Page4：Keep the AIL stick to the Left, flip mode switch enter next step Get AIL channel MIN value Page5：Keep the ELE stick to the Down, flip mode switch enter next step Get ELE channel MAX value Page6：Keep the RUD stick to the Left, flip mode switch enter next step Get RUD channel MIN value Page7：flip subMode switch，flip mode switch enter next step Detect subMode switch 6 SN-L user manual Enter RC Calibrate： -> ① When you can’t enter RC calibrate menu for some reason； follow steps like this: Power on FC -> make RC sticks move to the side-> wait until RC calibrate menu display ② Before OSD initialization is complete, don’t move sticks, otherwise you would enter RC calibtate menu again ③ After calibrate，don‘t change RC thrim FailSafe PPM receiver FC can’t recognize whether the RC is out of control, need to be set in advance. SBUS receiver can automatically identify if it is out of control Enter OSD menu -> FAILSAFE MODE GPS connect, HOLD satellites>6 GPS disconnect/GPS lose signal Hold current mode Hold current mode RTH Return to home Switch to stab mode, close throttle, Circling down① STAB Switch to stab mode, close throttle, Circling down Switch to stab mode, close throttle, Circling down ①The AIL is 10 degrees to the left, the ELE is 15 degrees down, and the throttle is closed. Calibrate ESC ① Switch flight mode to manual ② Disconnect ESC from PMU, don’t disconnect battery ③ Move throttle UP ④ Connect ESC ⑤ After “di-di”, move throttle down RSSI Support independent RSSI and RSSI signal channels in SBUS or PPM signals; can be selected by OSD menu. The independent RSSI automatically recognizes the RSSI signal type, PWM or AD type; the RSSI signal of some models of receivers may cause the OSD picture to flicker due to the RSSI modulation into a high frequency pulse signal. FC does not return to home based on the RSSI signal value. ARM&DISARM Satellites GPS connect GPS disconnect <=6 >6 DISARM ARM ARM ARM *If flight mode is manual mode, you can control the throttle in any situation Pre Flight checklist： 1 Check the rudder feedback is correct 2 Check the firmware version to keep the firmware up to date 3 Check if the FC attitude line is level. If it is not calibrated for a long time or the temperature changes too much, you need to recalibrate. 4 Check if the battery voltage 5 Confirm the position of each mode 6 Confirm that the Home location has been updated. 7 Confirm the vibration of the body and open the acceleration curve display. If the vibration is too large, the attitude will be disordered. It is recommended to keep the vibration amplitude within the warning line while maintaining horizontal flight. * Recalibration level is also required after changing the direction of FC installation 7 SN-L user manual * If you do not calibrate for a long time, or if the temperature changes too much, you need to recalibrate level (even if the attitude line looks level) Check accel health - - ① The vibration is in good condition. When the plane is flying flat, the vibration point is scattered within the two warning lines. ② The vibration is large, and most of the vibration points fall outside the warning line, which easily leads to the FC can’t calculate the correct attitude Calibrate Level Ensure that the aircraft is level and stationary during horizontal calibration. ① Horizontal calibration is required after changing the mounting direction. ② If you have not calibrated for a long time or the temperature difference has changed too much, you need to recalibrate. Sensitivity adjustment Sensitivity adjustment follows a simple rule that the smaller the wingspan, the smaller the sensitivity; the faster the flight speed, the smaller the sensitivity. Two points to note for gain adjustment: 1 --- : The larger the value, the faster the reaction speed and the excessive jitter. 2 --- --- : The larger the value, the faster the response joystick will be, and the jitter will be exceeded. Adjustment steps: Step1: set , normally reduce feed forward gain to 40 Step2: Set the . The span of 1m or less can set The parameter to about 45. If it exceeds 1m, it can be defaulted. After the parameters are set, you can fly test; firstly fly in manual mode, check whether the aircraft is mechanically balanced; then switch to the stabilization mode. If the aircraft is found to be shaking during the flight, reduce the sensitivity in the basic settings. If the aircraft is found to be unresponsive, then The sensitivity of the basic setting can be appropriately increased; under the premise that the basic sensitivity is set, the size of , can be appropriately increased. The larger the value, the more the aircraft follows the action of the RC sticks, but too large will cause the aircraft to shake. Flight and control： When a small arrow appears in the center of the screen, it indicates that FC has get “home” position; it can take off right now. You do not need to check this if you don‘t connect GPS. Auto TakeOff 8 SN-L user manual ① AltHold Mode: ② RTH Mode: Push the throttle to enough power and the aircraft will automatically climb to a height of 10m. Push the throttle stick away from the lowest position (if the throttle stick is at the lowest level below 20m, the motor will never start), give plane a speed until motor start. It is recommended that the hand throw speed be 2-3m/s and the ejection speed be 10-15m/s. Throttle and speed control ① Airspeed meter disconnect Speed is controlled by the ground speed, curise speed is setted in - . ② Airspeed meter connect Airspeed control keeps the aircraft from getting enough lift. In the case of connecting an airspeed meter, the speed of the aircraft is determined by the airspeed meter, and the airspeed is also controlled in the altitude mode. When the aircraft is less than , the speed of the aircraft is kept at the minimum ground speed, preventing the aircraft from stopping in the event of a headwind and swinging left and right. In general, it is recommended to set to about 10m/s. OSD Menu Enter OSD menu Flip mode switch twice AIL move left Exit the current menu or exit the selected mode AIL move right Enter menu or select setting item ELE move up or down Change item index or select parameter * in flight can’t enter the setup menu Flight summary After the landing, the OSD screen will display the flight summary, and each component will display the maximum value. Restart the flight control to eliminate the flight summary. BASE FUNCTION 1.3 AIL BASE The default gain can be adapted to most models. FUNCTION The heading gain only works in the T-tail type. The V-tail and the delta-wing heading are 1.4 ELE BASE FUNCTION manually controlled, and the flight control does not participate. 1.5 RUD BASE FUNCTION 1.1 AIRFRAME TYOE T-Tail, V-Tail, Wing 1.2 AP DIRECTION 0, 180, 90 1.7 FLIGHT MODE 1.8 WARING BATTARY Voltage warning value, OSD will prompt low voltage information 1.9 AUX 2.0 CALI RC Remap RC channel, get cannel range and direction 2.1 FAILE-SAFE MODE 2.2 RESET HOME updata home location 2.4 UNIT Switch metric system: “M”/”Ft” 2.3 RESET SETTINGS Reset all settings 1.6 SERVO AIL EXP Adjust the exp of the RC, the larger the value, the smaller the control amount near the center of the joystick; it only takes effect in the MANUAL mode. AIL TRIM Adjusting the servo offset , can be used to fine tune the rudder surface. 9 SN-L user manual AIL RANGE Adjust the rudder amount of the RC. The smaller the value, the smaller the stroke of the joystick control servo. ADVANCE FUNCTION 2.1 ADVANCE STAB GAIN ALT-HOLD GAIN NO NEED SPEED GAIN In the case of automatic cruising, if the throttle changes in a wave shape, this value needs to be reduced. FEED-FORWARD GAIN The adjustment range is 0~100; the larger the value, the more flexible the hand feel, the default is 70. If this value is too large, it will cause the aircraft to shake. The small aircraft is recommended to be set to around 35-45. 2.2 CONTROL RATE Control the rotation speed of the aircraft's roll and pitch. The larger the value, the more flexible the aircraft, and the larger the wingspan can be set larger. 2.3 MAX ROLL ANGLE 2.4 MAX PITCH ANGLE 2.5 RTH ALT The lowest altitude in the home mode, when the aircraft returns, it will hover according to this height 2.6 HOVER RADIUS 2.7 MIN GROUND SPEED When airspeed is connect 2.8 TAKE-OFF SPEED In the home mode, trigger the speed at which the motor starts (ground speed); used to assist the takeoff; hand throw 3-5m / s; ejection 15m / s; 2.9 CURISING SPEED 3.0 CURISING BASE THR 3.1 CURISING MAX THR 3.2 FAILSAFE TIME 0-3s ① ① For example, if it is set to 3s, when the remote control is out of control, wait for 3s before entering the failsafe mode（RTH mode）. 传感器 3.1 CALI LEVEL&GYRO Keep the aircraft level, and still 3.2 CALI BATT 3.3 CALI COMPASS NO NEED RSSI CHANNEL RSSI CHANNEL：“0”= Independent RSSI channel wiring “1-18”= Map the corresponding RC channel 3.4 CALI RSSI Firmware upgrade The way of get firmware and user manual: www.lefeirc.com https://github.com/HelloLeFei/SN_L/releases 10 SN-L user manual Step1: Download upgrade software and drivers and install： Please install “CP210x USB to UART Bridge” driver. Step2: download firmware： Step3: open FL software： Step4: connect FC： Don’t power on FC at first ! Connect the upgraded board like this picture; check the serial port number in the computer management. Then select the corresponding serial port number in the software. And click on "connect" Step5: Load firmware and update Click the "open" button to load the bin file, then click flash;； The computer will have a 10s countdown, please power on the FC within 10s; After the FC is powered on, the firmware will be written; 100% indicates that the updata firmware is successfully! 11
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