lefeirc RCbro SPARROW 2 User manual

RCbro® SPARROW 2 User-Manual
LefeiRC www.lefeirc.com/
SPARROW 2
Manual v1.7
Description
On the basis of the SPARROW FC, SPARROW 2 has updated the
operation mode to simplify the user's use and enhance the operation
experience. At the same time, it adds support for a variety of receiver
signals, including PWM, PPM, SBUS, and supports DJI-OSD. For
specific functions and usage, refer to the detailed description below.

RCbro® SPARROW 2 User-Manual
LefeiRC www.lefeirc.com/
WARNING
Please strictly abide by relevant national laws and regulations
and fly safely. Before using the FC, you must fully understand the
safety details. The equipment and any electronic products on the
aircraft cannot be completely reliable. The necessary inspections
must be carefully performed before the flight.
Content
1. PARAMRTER ..............................................................................................................................3
2. INSTALLATION & WIRING ....................................................................................................3
3. REMOTE CONTROL.................................................................................................................5
4. GAIN.............................................................................................................................................7
5. FLIGHTMODE ............................................................................................................................7

RCbro® SPARROW 2 User-Manual
LefeiRC www.lefeirc.com/
1. PARAMRTER
2. INSTALLATION & WIRING
➢FC Installation Direction
➢Receiver
FC
Size
32*27*11mm
Weight
9.5g
Voltage
5V
GPS
Size
22*20*7mm
Weight
6g
Voltage
5V
Receiver
Type
PWM/PPM/SBUS
Others
Accessories
FC,GPS,Screwdriver,Wire(2), Double-sided tape
Protocol
DJI-OSD

RCbro® SPARROW 2 User-Manual
LefeiRC www.lefeirc.com/
*If you use a PWM receiver, it is recommended to select the 3-switch as a mode channel,
otherwise it will not switch to three flight mode!
➢GPS
*When installing, please bring the ‘Front’ towards the sky and facilitate positioning!
➢DJI
* DJI interface also supports voltage detection.
* DJI interface voltage detection ranges from 2~6s, pay attention to the DJI supply
voltage (7.4-17.6V) when wiring, so as not to burn equipment!
➢DJI-OSD
The display includes: Latitude/Latitude, Satellite, Height, GroundSpeed, ClimbRate,
Distance, Voltage (including single battery voltage),Attitude information, FlightMode,
RSSI(SBUS), Orientation-pointing.
* To display a single voltage, you need to connect the voltage detection line to the DJI
interface before the FC is powered on!

RCbro® SPARROW 2 User-Manual
LefeiRC www.lefeirc.com/
3. REMOTE CONTROL
➢Receiver Type
PWM PPM SBUS
*If using PPM or SBUS, please set the channel sequence to AIL->ELE->THR->RUD, CH5
is the flight mode channel, and it is recommended to set it to 3-switch!
➢How to judge whether the RC is normal?
3 green lights flashing at the same time indicate that the RC signal is not recognized；
Green light T and V flashing indicate that the RC signal has been recognized.
* When power-on, the sensor takes 10 seconds to initialize, please keep the FC stationary.
➢How to use the RC to unlock the FC?
Step 1: Keep the throttle at the lowest position after power on;
Step 2: Push the throttle to the highest position;
Step 3: Push the throttle to the lowest position, the green light starts to indicate the type
of plane and flight mode.
➢How to use the FC to calibrate the ESC?
Step 1: Push the throttle to the highest position in MANUAL mode;
Step 2: Power on;
Step 3: Green light T and △flash, pull the throttle to the lowest after hearing the ESC
tone, the green light starts to indicate the type of plane and flight mode.
➢How to use the RC to set the type of plane?
Set the type of plane through the quick hit mode switch (CH5) after using the RC to
unlock the FC.
*You need to stop one second after switching once to continue to switch.

RCbro® SPARROW 2 User-Manual
LefeiRC www.lefeirc.com/
➢How to use the RC to calibrate level?
FC is placed horizontally and kept still,choose a way to
dial the sticks as shown in the figure, until the three
green lights flash at the same time.
➢How to use the RC to set direction of the servo?
*Must be completed before unlocking the RC.
Step 1: Check the feedback direction.
Step 2: If the feedback direction is not correct, turn the AIL or ELE stick to the maximum
position and hold it until the direction of the servo changes.
Step 3: Check the feedback direction again.
➢How to set the RC direction?
*If the control direction is not correct, you can set the channel output reverse in the RC.

RCbro® SPARROW 2 User-Manual
LefeiRC www.lefeirc.com/
➢FailSafe
Type
Setting method
PWM
Set the mode channel output in the RC to ensure that the flight
mode is RTH after the RC is turned off.
PPM
SBUS
Automatically identify whether it is out of control.
*Must connect to GPS when using it, otherwise RTH mode cannot be used.
4. GAIN
*The knob adjusts the overall sensation of the flight control, and does not distinguish the
individual channel.
Minimum Middle Maximum
5. FLIGHTMODE
Red LED
Describe
OFF
NO GPS
Flash
NO Positioning.Can not fly.
nON
Successful Positioning.You can fly.
➢AUTO TAKEOFF
ALTHold mode: Push the throttle to the MAX and after the motor rotates, the plane will
automatically climb to a height of 25m.
MODE
Describe
Green LED
MANUAL
RC directly controls the aircraft
Slow Flash
STABILIZATION
Auto level
ON
ALTHOLD(NO GPS)
Plane holds altitude, 25m minimum height limit
Fast Flash
RTH(GPS OK)
Return to home. Circle within a radius of 50 m at an altitude of 70 m,13m/s
Fast Flash

RCbro® SPARROW 2 User-Manual
LefeiRC www.lefeirc.com/
RTH mode: Push the throttle to the MAX, shake the plane or give the plane an initial
speed. After the motor rotates(Start slowly), the plane will automatically climb and circle
at HOME.
➢Takeoff/Landing State
The motor is slowly activated only in the takeoff / landing state, when the altitude is
above 30m, the speed is greater than 3m/s, then enter the normal flight state,at this time,
switch to the RTH mode, the motor is no longer started slowly; when the altitude is below
15m, the throttle is minimum, the speed is less than 1 m/s, then enter the landing state,
at this time, switch to the RTH mode, the motor will start slowly.
➢Throttle Control
The throttle in the return home mode is controlled semi-automatically. If the cruising
speed is low, the user can manually raise the throttle to increase the speed; the throttle
in other modes is manually controlled.
➢Throttle Output
Before using RC to unlock the FC, the throttle is locked,no output! After unlocking, the
throttle output is determined by the GPS state, referring to the table below.
MODE
NO GPS
NO Positioning
Positioned
MANUAL
RC throttle
RC throttle
RC throttle
STABILIZATION
NO Output
ALTHOLD
RTH
RTH
RTH
ALTHOLD
NO Output
<Throttle Control >