TOP
1.
Motor 2 pads (4x pads).
2.
RSSI pad.
3.
5V and GND headers.
4.
UART1 headers.
5.
Motor 1 pads (4x pads).
6.
Motor 8/7 signal pads.
7.
Motor 5/6 signal pads.
8.
IR LED headers.
9.
Battery pads.
10. Buzzer headers.
11. UART2/Receiver headers.
12. 3.3v pad.
13. LED Strip pad.
14. Motor 4 pads (4x pads).
15. Motor 3 pads (4x pads).
16. Camera pads.
17. VTX + Audio pads.
10
UART2 RX/TLM
(11)
1
n
GND
2
l
5v
3
l
RX/PPM
4
l
TX/TLM
UART2/PPM - Serial RX or PPM RX + Telememetry
For receiver connections.
Note: Some receivers like the FrSky XSR/X8R require the use of two serial ports for RX and Telemetry in this
case use UART2 (for RX) and UART5 (for Telemetry) - See also the receiver connector on the bottom of the PCB.
SPRacingF7DUAL
http://seriouslypro.com - http://cleanflight.com
Page 5
A. MicroUSB socket.
B. UART5/Camera OSD
socket.
C. SWD debug socket.
D. Micro SD socket.
E. 5V OK LED (Green).
F. Status OK LED (Red).
G. 3v3 Voltage Regulator.
H. Dual Gyro and Acceler-
ometer sensors.
I.
Stacking connector.
J.
3V OK LED (Blue).
K. SP Racing Logo.
L. Cleanflight Logo.
M. OSD.
N. 4mm Mounting Holes.
O. MIC/PID-Audio balance
control.
Table Legend
1. Port name
2. Port number
3. PCB marker / Pad
shape
4. Pin number
5. Signal Name
6. Signal/Wire Color
UART2
(2)
1
l
GND
2
VIN
3
TXD/SWDCLK
4
RXD
3
5
1
6
2
4
4
8
9
LED Strip Pads
(13)
1
n
LED Strip Data Out (DO)
2
n
5V BEC
3
n
GND
LED Strip Pads
Pads for connecting an LED strip. Note that some LED strips require a MAXIMUM voltage LESS than 5V. In
this case connect a DIODE between the LED strip + and the 5V BEC pad to drop the voltage. See Cleanflight
manual for further details. The LED Strip signal pad is marked “LED” and closest to the middle of the board.
BATTERY
(9)
1
l
B
2
n
Battery -
BATTERY -
IMPORTANT:
DOUBLE CHECK
and
TRIPLE CHECK
POLARITY!
For connecting a 2-5S LiPo battery (21V MAX). Connect to battery MALE connector, e.g. the XT60 with the
pins. Your battery should have with a female connector.
RSSI
(2)
2
n
RSSI
RSSI
RSSI is for
0 - 5v
PWM RSSI or
0 - 3.3v
Analog RSSI - Disabled until RSSI select pads (see Bottom) are set.
UART1
(4)
1
n
TXD (T1)
2
l
RXD (R1)
UART1
Use for connecting to OSD/GPS/BlueTooth.
5v
signals
OK
.
IR LED
(8)
1
n
IR -
2
l
IR +
IR LED
IR headers are used to a connect single IR LED - either direct-solder the LED or attach the LED via a cable. The
LONG leg of the LED goes in the ROUND hole. The SHORT leg of the LED goes in the SQUARE hole.
C
1
5
K
B
A
M
2
3
6
7
11
15
13
D
F
H
G
I
L
E
12
14
J
O
N
16
17
Motor Pads
(1,5,14,15)
1 -
Battery - -
2 +
B
3 M Motor Signal
4 G
Motor Signal Ground
Motor 1-4 Pads
4 pads per motor/ESC. Pads are inside the white border.
Connect /Battery - pads to ESC power pads/wires.
Connect Signal and GND to ESC signal and ground pads/wires.
When using 4in1 ESC do not use /- pads; Use 4in1 PADS instead (see Bottom).
5V/GND
Primarily used for Stacking VTX board. May be used to power other 5V devices.
5V/GND
(3)
1
n
GND
2
l
5V
Motor Pads
(6, 7)
1
n
Motor Signal
2
n
Motor Signal
Motor 5-8 Pads
1 pad per motor/ESC.
Ensure each ESC is also connected to a Motor Signal Ground pad. e.g. from M1-4 pads.
BUZZER
(10)
1
n
BUZZER- (B-)
2
l
(B+) / 5v
BUZZER
Use 5V and BUZZER- to connect to an external buzzer.
5.0v
is also supplied when powering via USB.
3.3v Pad
(12)
1
n
3.3v
3.3v Pad.
This pad is for use when connecting to 3.3v received, e.g. Spektrum Satellite receiver.
