User`s manual

AscTec Hummingbird with AutoPilot User’s Manual
1.1.2 AscTec Hummingbird
PowerBoard
The PowerBoard is used to distribute power and
communication lines to all motor controllers. It
comprises a switching power regulator to generate a
stable 6V supply for the AscTec AutoPilot board, a
high-power MosFET to switch the motor current ON
and OFF and a 5V regulator to supply any custom
payloads like e.g. a 2.4 GHz wireless video camera.
There are also some soldering pads where extension
boards can be connected to an SPI or I2C bus of
the AscTec AutoPilot’s high level processor. The
ON-OFF switch is designed active low, so if for
some reason the mechanical switch breaks or looses
connection the vehicle is switched ON by default.
AutoPilot
connectors
HL interface
SDA SSEL MOSI
SCL SCK MISO
Motor I
2
C
Motor I
2
C
Power
connector
+
–
X-BLDC
power supply
–
+
–
+
–
+
+
–
top side
Motor I
2
C
Motor I
2
C
5V
–
+
12V
–
+
–
+
PWR
switch
connector
bottom side
1.1.3 AscTec AutoPilot
The AscTec AutoPilot is the sensing and flight control
unit of your Hummingbird.
Ascending Technologies GmbH - 5 - www.asctec.de