RCbro®
SPARROW V3 Pro
LefeiRC www.lefeirc.com/
➢Large current
When the current is large, it is recommended to tin the exposed pad during soldering,
as shown in the picture below!
When the current is too large and the battery power supply capacity is insufficient, it
may cause the OSD to flicker. At this time, it is recommended to connect a low ESR large
capacitor in parallel with the FC, such as 470uf/30V(included in the accessories);Pay attention
to the positive and negative poles of the capacitor when using it. The common way to judge
is that the longer pin is the positive pole and the shorter pin is the negative pole, or you can
judge by the positive pole (+) or negative pole (-) marked on the capacitor shell,
In some ESCs, the battery voltage and 5V-BEC output voltage fluctuate greatly under
high current conditions, which will cause certain interference to the FC, such as OSD
flickering or even the sensor being affected, resulting in an attitude error. A low ESR large
capacitor is connected in parallel with the output terminal of the ESC (the closer the ESC is,
the better the effect). If space allows, a capacitor can be connected in parallel at the BAT and
ESC terminals of the FC.
➢Remote control and receiver
◐ PPM SBUS IBUS ELRS/CRSF
Just connect the signal to the RC channel, the FC will automatically recognize it;the
default channel sequence is A-E-T-R, which can be modified to T-A-E-R;it supports dual-
channel mode switching and is divided into MAIN-SUB mode channels.You can set 5 flight
modes at the same time. The main mode channel defaults to CH5, before using the sub
mode, you only need to set one of the main modes to
<SUB>
.
◐ Calibrate the RC
Enter the OSD menu
<RC>
-
<RC CALI>
, press and hold the stick for a few seconds
(ROLL to the right) until
< CFM?>
appears. Quickly dial the main mode channel several
times to complete the calibration. If
<ERR>
is displayed after calibration, it indicates that the
calibration failed. Observe whether there is an offset in the channel data displayed on the
OSD. 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>
.After
the calibration is completed, press and hold the stick for a few seconds (ROLL to the left) to
exit the calibration page.
