common abbreviations

 

Abbreviation	Interpretation
ACC	Accelerometer
ACCU	German (among other languages) for rechargeable Battery
APP	Anderson Power Poles
ARM	Advanced RISC Machine, now the proper name for ARM Ltd.
ATV	Adjustable Travel Volume
BEC or BESC	Battery Eliminator Circuit
BOM	Bill Of Materials
CC	CopterControl
CC3D	Copter Control 3D
CG or COG	Center Of Gravity
CPU	Central Processing Unit (ST ARM SOCs on OP boards)
CRC	Cyclic redundancy check
ESC	Electronic Speed Controller
EPA	End Point Adjustment
FC	Flight Controller
FPV	First Person View
GCS	Ground Control Station
GND	Ground (mostly referring to the minus of the battery)
HK	Hobbyking
HPF	High-pass Filter
I2C	Inter Integrated Circuit, (A communication bus)
IMU	Inertial Measurement Unit
INS	Inertial Navigation System
JST-SH	A type of Connectors
JTAG	Joint Test Action Group
KK	Kaptein Kuk (Multicopter controller by Rolf Bakke)
LiPo	Lithium-Polymer-Akkumulator (Battery)
LOS	Line Of Sight, also can mean Loss Of Signal
LPF	Low-pass Filter
MEMS	Micro Electro Mechanical System
MK	Mikrokopter
MWC	MultiWii Copter
Nick	German for fore/aft pitch or elevator
OP	OpenPilot
OSD	On-screen Display
PCB	Printed Circuit Board
PCM	Pulse-code Modulation
PID	Proportional-Integral-Derivative
PFD	Primary Flight Display
PPM	Pulse Position Modulation
PWM	Pulse Width Modulation
PWR	Power (often referring to the plus of the battery)
RC	Remote Controlled
RCG	RCGroups
RX	Receiver
SCCP	Source Code Control Program (OP uses Git for this)
SCL	Serial Clock Line (I2C bus)
SDA	Serial Data Line (I2C bus)
SOC	System On a Chip
SVN	A revision/version control system
Sx	Servo
TX	Transmitter
UART	Universal Asynchronous Receiver/Transmitter
UAV	Unmanned Aerial Vehicle
UAV-Talk	An open binary protocol
USART	Universal Synchronous-Asynchronous Receiver/Transmitter
VCP	Virtual Communication Port
VTOL	Vertical Take Off & Landing
WMP	Wii Motion Plus
XT60	A type of connector