NWave Technologies NWRM1000 Users manual

NWRM1000'User'Manual''

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The!NWRM1000!communicates!with!the!host!MCU!over!a!standard!asynchronous!serial!
interface!consisting!of!TX!and!RX!pins.!The!radio!module!has!got!embedded!AT!
commands!interpreter!to!adjust!settings!and!sends!messages!via!NWave!radio!protocol.!
Over!this!serial!interface,!the!NWRM!device!provides!a!standard!Hayes!“AT”!command!
set!used!to!control!the!module!using!ASCII!readable!commands!and!get!answers,!as!well!
as!to!send!or!receive!data.!This!interface!allows!twoKway!UART!communication!to!be!
performed!in!low!energy!modes,!using!only!a!few!μA!during!active!communication!and!
only!150!nA!when!waiting!for!incoming!data.!!
!
Below!can!be!found!serial!port!settings!and!supported!AT!commands!which!external!
processor!shall!use.!!

Serial'Port'Settings'

By!default!radio!module!settings!are!as!follows:!

• LVTTL!electrical!level!

• 9600!bps!

• 8!data!bits!

• 1!stop!bit!

• No!parity!

• No!software/hardware!control!

Bootloader'

The!NWRM1000!module!contains!an!integrated!bootloader!which!allows!reflashing!the!
module!firmware!either!over!the!RX/TX!UART!connection,!or!over!the!air!using!the!
builtKin!RF!transceiver.!

ADC'

The!NWRM1000!provides!an!interface!to!an!integrated!lowKpower!successive!
approximation!register!ADC,!capable!of!a!resolution!of!up!to!12!bits!at!up!to!1!Msps!or!6!
bits!at!up!to!1.86!Msps.!The!ADC0!and!ADC1!pins!provide!the!external!interface!to!the!
ADC.!When!not!used!for!ADC!operation,!these!2!pins!can!be!configured!to!perform!other!
functions!using!“AT”!configuration!commands.!
!

Carrying'Frequency''

Syntax:!

«AT+FREQ=[Carrying_frequency],[Bandwidth]»

Whereas!«Carrying_frequency»!is!a!value!of!carrying!frequency!in!Hz,!«Bandwidth»!is!a!
range!inside!of!which!the!module!sends!messages.!

Example:!

«AT+FREQ=868000000,25000»

Answer!in!case!of!success:!

«Ok»

Answer!in!case!of!error:!

«Error»

Sending'Messages'

Maximum!length!of!the!message!is!20!bytes.!

Syntax:!

«AT+SEND=[&hex_byte1][&hex_byte2]..[

[&hex_byteN]]»

Whereas!hex_byte[n]!represents!data!in!hex!format,!n!–!byte!number.!Before!each!byte!
it's!needed!to!put!«$»!sign.!!

Syntax:!

«AT+SEND=$23$0A$5D$5F»

In!case!of!success!the!module!answers!in!3K10!seconds:!

«Ok»

In!case!of!error:!

«Error»

Getting'Modem'Network'Address'

Syntax:!

«AT+SERIAL=?»

Example:!

«AT+SERIAL=?»

In!case!of!success!the!module!returns!number!in!hex:!

«0000F556»

In!case!of!error:!

«Error»

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