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SKYLINE32
4
[B]Withstand voltage 5VGPIO port, this pad connected with the STM32 PB5. Can be connected to 5V IO port.
[C]5V extented pad, this pad used for RC input & ESC connector, convenient for supply power for other 5v parts.
[D]3.3V extented pad.It offer power supply for other low voltage parts,such as spectrum,satelite RC or bluetooth
module,etc.
[E]
Ground pad.when use 5V and 3.3V entended power for out parts,the out parts could occupy same space with
flight controller.
[F] 3.3V ADC input pad,it is connected with PA5 of STM32
（ADC12_IN5）
.
Note: This pad with 3.3V,5V couldn’t be
connected.
Note:Right connection,avoid parts damage.
⑭
OSD Module power indicator(Blue) .
Note
:
Only SKOSD Version
⑮
OSD module serial port: this is used to update the firmware and interface setting for OSD module.
Note: Only SKOSD
.Because USB and OSD sharing this port,so please turn off the OSD when updating the
FC firmware and OSD firmware.(Switch OSD power to OFF),avoid any conflict that caused by using FC and OSD,FC
and USB meanwhile that couldn’t connected with computer.
⑯
OSD module status indicator. It can be judged by the indicator whether OSD module is under working condition.
Note: Only SKY OSD version.
[A] 3.3V voltage-resistant GPIO port, this pad connected with the STM32 PB5 pin. This pad can not be connected to
5V voltage, otherwise it will burn the device.
[B] 5V voltage-resistant GPIO port, this pad connected to the STM32 PA15 pin . Can be connected to the IO port of
5V.
[C] 5V expansion pads. This pad,RC input interface and 5V power with the same source,convenient to power other 5V
outer equipment up.
[D] 3.3V expansion pad. This pad supply power for equipment with low power, such as Spektrum satellite receiver or
Bluetooth module.
[E] Ground pad. When using 5V or 3.3V power supply to power outer equipment up, connect this pad could enable
outer equipment and flight control system with common ground.
[F] 3.3V ADC input pads. This pad is connected to the STM32 PA5 (ADC12_IN5), access to pad as the signal strength .
Note: This pad only limited within 3.3V pressure, couldn’t be connected with 5V.press.
[G]OSD power switch.
Note: Only for SKY OSD version.
As USB and serial OSD share the serial port, so please switch it to OFF when update the firmware of flight control and
OSD , to avoid serial ports conflicts when use flight control and OSD simultaneously, so that causeflight control and
USB can not connected with computer.
[H]OSD module connected to peripheral input / output pads. BAT1 / BAT2 are two battery test pads, VideoIN
connected camera signal, VideoOUT is connected with camera signal, RSSI is detection pad of signal strength , CURR
detection pad of current. NOTE: Only SKY OSD version valid. Camera, FPV and flight control must share
GND,which can be connected to soldering panel of the flight control.
[I] OSD module ISP communication pad used for download of OSD module boot code .
Note: Only SKY OSD version valid.
[K]RGB light pads. DI pads connected with CH5, can be used as RGB input.
Caution:
Please note that all the wires connecting direction of wiring, if reversed that may burn flight control board
or external device for access.
