ACI	Application Controller Interface
ADC	Analog-to-digital converter
A/D	Analog-to-digital
BLE	Bluetooth Low Energy
CDCA	Coordinated duty cycle algorithm
COPD	Chronic obstructive pulmonary disease
CPU	Central processing unit
DC	Direct current
DMM	Digital multimeter
DSO	Digital sampling oscilloscope
ECG	Electrocardiogram
FDMA	Frequency-division multiple access
GATT	Generic attribute
IEEE	Institute of Electrical and Electronics Engineers
ISM	Industrial, scientific, and medical
LR-WPAN	Low-rate wireless personal area network
MCU	Microcontroller unit
PCB	Printed circuit board
PDA	Personal digital assistant
PHY	Physical layer
RC	Resistor-Capacitor
RF	Radio frequency
RTC	Real-time clock
RX	Receive
SBC	Single board computer
SIG	Special Interest Group
SPI	Serial peripheral interface
sps	samples per second
TDMA	Time-division multiple access
TX	Transmit
WBAN	Wireless body area network
WPAN	Wireless personal area network
WSN	Wireless sensor network