lefeirc RCbro SPARROW 3-OSD, Manual, Page: 5 / 10

RCbro ®
SPARROW
3-
OSD
LefeiRC www.lefeirc.com/
➢
Flight controller working voltage
FC is powerd by external 5v BEC.
➢
High current working state
When the motor need to work with high current, it is recommended to plate tin on the
exposed pad, as shown in the figure below!
➢
Remote control and receiver
◐
PWM
The flight controller supports 5 PWM inputs, including CH1-4 and RC. The specific
settings are that CH1 is AIL, CH2 is ELE, CH3 is THR, CH4 is RUD(A-E-T-R), and RC is the
mode channel. It is recommended to use a 3-SW for the mode channel.
◐ PPM SBUS IBUS CRSF
Just connect the signal to the RC channel, the FC will automatically recognize it, the
channel sequence is A-E-T-R, and the mode channel is CH5 by default. Some CRSF(ELRS)
receivers have only two states for CH5, which makes it impossible to switch the three flight
modes. At this time, you can change the mode channel to CH6 in the OSD setting item.
◐ Calibrate the RC
Ensure that the throttle is at the lowest level before calibration, and other sticks have no
offset .Select the
<RC CALI>
item, when <CFM?> appears, quickly dial the mode
channel(CH5/CH6) several times to complete the calibration. If <ERR> is displayed after
calibration, it indicates that the calibration failed. If the calibration fails and the RC cannot be
calibrated again, you can turn the roll and pitch stick to the MAX, and then restart the FC , it
will automatically enter
<RC CALI>
.
◐ RSSI
RSSI channel can be selected, and the range of RSSI value is the same as that of other
channels.