Abbreviations	Description
SNR	Signal noise ratio
WSN	Wireless sensor networks
MQTT	Message queuing telemetry transport
UDP	User datagram protocol
TCP	Transmission control protocol
RPI	Raspberry Pi
SCP	Secure copy protocol
NTP	Network time protocol
CLI	Command line interface
UART	Universal asynchronous receiver-transmitter
ADC	Analogue to digital converter
WAP or AP	Wireless access point
UTC	Universal time coordinated
mTS	Milliseconds time stamp
TS	Time stamp
PTP	Precision time protocol
SSH	Secure shell
LAN	Local area network
Variables	Description
numtotalsamples	Number of total samples in actual block register
countsamplespkt	Number of samples included in frame to send
mdelay	Average delay of 16 calculated values
mDrift	Average drift of 16 calculated values
vectordmm	Buffer with those values less than mdelay
vectorDmm	Buffer with those values less than mDrift
DELAYM	Average delay of the selected values
DRIFTM	Average drift of the selected values