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USR-GM3 User Guide

1. Q 27 dA D 28 ilar Oa REC NT eer AGA AA NAA awan a AA 28 5 Parameters Setting 0111111171717170 0 eene anana nennen eene nenne tener n nenne sess sese esee nette eren nnns nasse sees esee eterna 29 5 1 Operating AT commande 30 oM V Command Mota 31 5 3 AT Command SOU E 33 EE LONG RR TTD Nm 51 elei ue K RE E 52 js velo s gera esi Update HON E 52 USR IOT Jinan USR IOT Technology Limited 2 53 tec Qusr cn A Quick Start USR IOT Be Honest Do Best USR GM3 User Manual www usriot com This chapter is a quick start guide for using USR GM3 module If it is the first time to use USR GM3 for you you should read this chapter carefully and then follow the tips try to do some tests by yourself It will help you to know about USR GM3 generally If you have experience of using USR GM3 please escape this chapter In this chapter you will be told how to make communication between serial device and TCP server Under default setting GM3 module works in network transmission mode it connects to our TCP test server address is test usr cn port is 2317 The server will respond what it receives All the software used in this document can be obtained from our website www usriot com You can also access USR customer support center http h usriot com 1 1 Testing environment The voltage of module is TTL 3 3V so you should not connect it with computer serial port directly an ada
2. Close kecy Options TCP Server a 2 Lacal hast IP 115 28 232 174 3 Local host port 1 DEL Listening Recv Options Le Ready Receive to file Add line return Receive As HEX Receive Pause cave Clear Send Options Data from file Auta Checksum Auto Clear Input Send As Hex Send Recycle Interval 1000 ms Load Clear Jinan USR IOT Technology Limited WWW WSF en Send Send 10 Hecv 26 Reset Send Le H Send 24 53 Receive to file Add line return Receive As HEX Receive Pause AWE Clear send Options Data from file Auta Checksum Auto Clear Input Send As Hex Send Recycle Interval 300 ms Load Clear Hecv Dese tec usr cn SG USR IOT Be Honest Do Best USR GM3 User Manual www usriot com E NE E O53Ks O ah EN 15 48 Wy 186156888377867 LL WA A Jinan USR IOT Technology Limited 25 53 tec usr cn x USR IOT 4 1 4 4 SMS AT Command Note every command string should terminate with carriage return Here we use OD 1 Query command password AT CMDPW We suppose the command password is usr cn here Besides customers need to configure SMS message transmission refer to chapter 4 1 4 3 After setting successful restart GM3 send usr cn AT VER to GM3 from cellphone then then you will get response from GM3 wall 11 04 130660056
3. OD means carriage return OxOD in hex number 20 means space 0x20 in hex number Restart module then send data www usr cn to HTTP server via serial port you will get www usr cn from server NOTE the server www usr cn is USR s HTTP test server if you send data www usr cn to it it will feed back the data after with TT including Jinan USR IOT Technology Limited 20 53 tec usr cn KN USR IOT Be Honest Do Best USR GM3 User Manual www usriot com Fle F Options O Help H LL M Settings LM part data receive Network data receive Mak ettings MEAE ipe Bauds 115200 TCP Server 2 Local host IP NONE E D Fatty 115 28 232 174 E bit z D ataB 3 Local hast port StapB I bit M 1 0000 Close ty Listening Recy Options Recv Options Receive to file Receive to file Add line return Add line return Receive As HEX Receive As HEX Receive Pause Receive Pause cave Clear SAFE Clear Send Options send Options Data from file Data from file Auta Checksum Auta Checksum Anto Clear Input Auto Clear Input Send As Hex Send As Hex Send Recycle Send Recycle Interval 1000 ms data www usr cn mu Interval 300 ms en Load Clear Load Clear L Ready Send 15 Recy 12 Reset Le R Send 0 Hecv D Reset In the step 1 serial device send data www usr cn to GM3 then GM3 prepares HTTP pa
4. CR LF NATEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT NATEN CR or AT NATEN CR Jinan USR IOT Technology Limited 37 53 tec usr cn A USR IOT e noc r set i Be Honest Do Best USR GM3 User Manual www usriot com CR LF NATEN status CR LF CR LF OK CR LF set parameter AT NATEN status CR CR LF OK CR LF parameter status enable or disable network command on enable e off disable AT UATEN function query or set enable disable serial port command format query parameter introductions AT UATEN CR CR LF UATEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT UATEN CR or AT tUATEN CR CR LF UATEN status CR LF CR LF OK CR LF set parameter AT UATEN status CR CR LF OK CR LF parameter status enable or disable serial port command on enable e off disable AT CMDPW function query or set command password format query parameter introductions AT CMDPW CR CR LF CMDPW lt password gt CR LF CR LF OK CR LF query current value of parameter AT CMDPW CR or AT CMDPW CR CR LF CMDPW password CR LF CR LF OK CR LF set parameter AT CMDPW password CR CR LF OK CR LF parameter password command password Jinan USR IOT Technology Limited 38 53 tec usr cn _ USR IOT l ve sat i Be Honest Do Best USR
5. WWW SY CIL Send 3 Reset Read Send 10 Recw 10 Reset 4 1 2 4 Special Type Of Sending Command www usriot com Mak ettings 1 Protocol TEP Server 2 Lacal hast IP 115 28 232 174 3 Local host port j DO AE Disconnect Recv Options Receive to file Add line return Receive As HEX Receive Pause SAFE Clear cend Options Data from file Anto Checksun Auto Clear Input Send As Hex Send Recycle Interval 300 ms Load Clear Besides under AT command mode customers can also send At commands under network transmission mode via serial or network This kind of commands is different from common ones customers should add command password and at the front of common command string Note every command string should terminate with carriage return Here we use OD 4 1 2 4 1 Serial AT Command 1 Set work mode as network transmission Jinan USR IOT Technology Limited 16 53 tec usr cn KN USR IOT AT WKMOD NET 0D 2 Enable serial command function AT UATEN on OD 3 Query command password AT CMDPW 0D Be Honest Do Best USR GM3 User Manual www usriot com We suppose the command password is usr cn here After setting successful restart GM3 then send usr cnZAT VER via serial Then GM3 will respond the firmware version aT e USR WIFI232 Setup V1 20 WA Plet PIL About A Common oprate ATTH ATT
6. KN USR IOT Be Honest Do Best USR GM3 User Manual www usriot com USR GM3 User Guide USR GM3 File version Ver1 0 USR GM3B is highly integrated UART to GSM GPRS module Users can easily make communication between serial device and cellphone and network device with it This module is different from the common modules on the market it is the smallest GPRS DTU plug and play device Later version USR GM3S will be with SIM card inside more easier to use it just need power supply Jinan USR IOT Technology Limited 1 53 tec usr cn A Be Honest Do Best USR GM3 User Manual www usriot com Content BE RE E e ae an nO nn E ANA 1 Ie E LE NT aan Na aaa ba aaa E aaa bea Na NARA aaa NA I aga a ana ING ana apaa ana A WI Sam a aa a aana aa Ra E 3 Tete TESINI aler saa naga ai jab ahaaa a m 3 AA RA AT 4 PMA Tele Ee AA AA aan Ka aaa aana ban aa ie eaaa a aaa baa 6 Ze ae BP AA 6 ZZ IVA CIS E 6 Zi Wr SAU NE Tm 6 ZF PON CATION Te E T Se lge AR 8 CRINE PIN ESEP ION DEE 8 a a SA PA 8 3 1 2 Pn Assignment CIOP AAAH 8 SRM NC uid M E o AA 8 3 1 4 Pin AIC SOLID ION DEE 9 ONE SIS ET EE 11 Z Module FUNCTIONS E 11 Ala WORK MODE ee NEA 12 4 1 1 Switching Work dee EE 12 4 1 2 i ez i o ME 12 z Mag ING PA ma NB a BA FON CUO AA e 18 4 1 4 SMS Message Troansmisson a 22 dt 4 REJSIE Ol a2 9 Le E 25 rs Wei OB Y le ele AA 26 E Le 26 4 3 Heart Beat Package E 26 Ta l DESC Le len EE 2f ARA AA 2f KALAN m
7. query parameter introductions AT UARTZ CR CR LF UART lt 2400 4800 9600 14400 19200 28800 33600 38400 57600 115200 230400 460800 921600 gt lt NONE ODD EVEN gt lt 7 8 gt lt 1 2 gt lt NONE CRTS RS485 gt CR LF XCR LF OK CR LF query current value of parameter AT UART CR or AT UART CR CR LF UART baud parity data bit stop bit flow control CR LF CR LF OK CR LF set parameter AT UART baud parity data bit stop bit flow control CR CR LF OK CR LF gt parameter Jinan USR IOT Technology Limited 41 53 tec usr cn _ USR IOT A MAG sof i baud baud rate 2400 4800 9600 14400 19200 28800 33600 38400 57600 115200 230400 460800 921 600 parity NONE no parity e ODD odd parity e EVENT even parity data bit e 7 7 data bits e 8 8 data bits flow control e NONE no flow control e CRTS use RTS CTS for flow control e RS485 use RS485 function 22 AT RFCEN function query or set enable disable similar RFC2117 format query parameter introductions AT RFCENZ CR CR LF RFCEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT RFCEN CR or AT RFCEN CR CR LF RFCEN status CR LF CR LF OK CR LF set parameter AT RFCEN status CR CR LF OK CR LF gt parameter status enable disable similar RFC2117 on enable e off disable 23 AT APN function
8. A USR IOT Be Honest Do Best USR GM3 User Manual www usriot com EC 1 iefed No sevo fresponsene no operator KET Ten 4 lt OR gt lt LF gt lt CMD gt lt PARA gt lt OR gt lt LF gt lt OR gt lt LF gt lt OK gt lt CR gt lt LF gt retum parameter Type of command PC gt mom daescripuon Or 5 3 AT Command Set No command decido 00 Gu pemes NT 7 mmm le weyassewisdedieeko 4 ENIM uutfomcommandmode S 6 caren query orsetifalowtocal 8 UATEN query or set enable disable serial port command ER CMDPW query or set command password CACHEN query or set enable disable data cache STMSG query or set welcome message a E 18 RED restore default setings Jinan USR IOT Technology Limited 34 53 tec Qusr cn KN USR IOT Be Honest Do Best USR GM3 User Manual www usriot com SS uU PI SG Gall CI a GO II I UART query or set serial port parameters RFCEN query or set enable disable similar RFC2117 IE Rees Pu SOCKEL VDaramMmeter i 2 SOCKASL query or set socket A long or short connection 29 SOCKBSL SOCKBSL query or set socket B long or short connection SOCKALK query socket A connection status SOCKBLK query socket B connection status REGEN REGTP query or set register package data type REGID query or set register ID used for D2D REGDT query or set register user defined data REGSND query or
9. LF OK CR LF gt parameter status enable or disable echo on enable e off disable 4 AT ENTM gt function quit from command mode gt format setting AT ENTM CR CR LF OK CR LF 5 AT WKMOD gt function query or set work mode Jinan USR IOT Technology Limited 36 53 tec usr cn A USR IOT e noc r set i Be Honest Do Best USR GM3 User Manual www usriot com format query parameter introductions AT WKMOD 7 CR CR LF WKMOD lt CMD SMS NET HTTPD gt CR LF CR LF OK CR LF query current value of parameter AT WKMOD CR or AT WKMOD CR CR LF WKMOD mode CR LF CR LF OK CR LF set parameter AT WKMOD mode CR CR LF OK CR LF parameter mode work mode e CMD AT command mode e SMS SMS message transmission mode e NET network transmission mode e HITPD HTTPD mode AT CALEN function query or set if allow to call format query parameter introductions AT CALENZ CR CR LF CALEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT CALEN CR or AT CALEN CR CR LF CALEN status CR LF CR LF OK CR LF set parameter AT CALEN status CR CR LF OK CR LF parameter status enable or disable call on enable off disable AT NATEN function query or set enable disable network command format query parameter introductions AT NATEN CR
10. Send Hecv D Network data receive usr CN TVER V1 D 4 Peers Reset L Ready 18 53 1115 28 232 1 12497 20 232112497 r usr en ALTYER Send www usriot com NetS ettings 1 Protocol TCP Server 2 Local host IP 115 28 232 174 3 Local host port DIO AE Disconnect Recv Options Receive to file Add line return Receive As HEX Receive Pause S awe Clear Send Options Data from file Auto Checksum Auto Clear Input Send As Hex Send Recycle Interval 300 ms Load Clear Hecv Z2 F ezet tec usr cn USR IOT mg mg D Be Honest Do Best USR GM3 User Manual www usriot com A 4 1 3 HTTPD Function 4 1 3 1 Description HTTP Internet HTTP data data HTTP server Serial data GM Serial device Hitt Under this mode customer s serial device can request data from HTTP server via this module Module can also receive data from HTTP server analysis the data and transmit the data to customer s serial device Customers don t need to know the detail of communication just need some simple setting 4 1 3 2 Application Scenarios If customer want to request data from HTTP server and customer s serial device can t connect to Internet via a router But signal from base station is available so customer can use GM3 module to make this communication Customer just need to do some simple setting an
11. gt parameter type sending type e link send register data when socket connects e data send register data as the head of every TCP UDP package e link amp data support both of above two ways 37 AT HEARTEN function query or set enable disable heartbeat format query parameter introductions AT HEARTEN CR CR LF HEARTEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT HEARTEN CR or AT HEARTEN CR CR LF HEARTEN status CR LF CR LF OK CR LF set parameter AT HEARTEN status CR CR LF OK CR LF gt parameter status enable disable heartbeat function on enable e off disable 38 AT HEARTDT function query or set heartbeat data format query parameter introductions AT HEARTDT CR CR LF HEARTDT lt data gt CR LF CR LF OK CR LF query current value of parameter AT HEARTDT CR or ATtHEARTDT CR CR LF HEARTDT data CR LF CR LF OK CR LF set parameter Jinan USR IOT Technology Limited 48 53 tec usr cn _ USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A AT HEARTDT data CR CR LF OK CR LF gt parameter data heartbeat data hex string max length is 80 bytes for example 7777772E7573722E636E means www usr cn in ASCII 39 AT HEARTTP function query or set heartbeat package sending type gt format query paramet
12. user defined data 34 AT REGID function query or set register ID used for D2D format query parameter introductions AT REGIDZ CR CR LF REGID lt id gt CR LF CR LF OK CR LF query current value of parameter AT REGID CR or AT REGID CR CR LF REGID id CR LF CR LF OK CR LF set parameter AT REGID id CR CR LF OK CR LF gt parameter id register ID 35 AT REGDT function query or set register user defined data format query parameter introductions AT REGDTZ CR CR LF REGDT lt data gt CR LF CR LF OK CR LF query current value of parameter AT REGDT CR or AT REGDT CR CR LF REGDT data CR LF CR LF OK CR LF set parameter AT REGDT data CR CR LF OK CR LF gt parameter data user defined register data hex string max length is 80 bytes for example 7777772E7573722E636E means www usr cn in ASCII 36 AT REGSND function query or set register package sending type gt format Jinan USR IOT Technology Limited 47 53 tec usr cn 9 USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A query parameter introductions AT REGSND 7 CR CR LF REGSND lt link data link amp data gt CR LF CR LF OK CR LF query current value of parameter AT REGSND CR or AT REGSND CR CR LF REGSND type CRKLF CR LF OK CR LF set parameter AT REGSND type CR CR LF OK CR LF
13. and sends tok to device 5 Device receives tok it means module has gone to temporary command mode so device can send AT commands to module Back to previous mode 1 Device send command AT ENTM to module 2 Module receives AT ENTM and send OK to device 3 Device receives OK it means module has gone back to previous mode 5 2 AT Command Format AT commands work in asking answering mode asking means device sends commands to module answering means module responds to device Symbol Description content inside isnot necessary cm PARA CR LF carriage return hex number is OD operator parameter carriage return line feed Jinan USR IOT Technology Limited 32 53 tec usr cn USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A 1 The format of asking Command string lt AT gt CMD OP PARA lt CR gt PARA parameters of command Type of command Command string ei AT CMD CR query parameters AT CMD CR Query the value of parameter AT CMD CR execute action or query parameters AT CMD PARAM 3 CR Set the value of parameter 2 The format of answering There are two kinds of response with or without echo All the followings are using without echo as examples Command string CR LF CMD OP PARA CR LF lt CR gt lt LF gt OK lt CR gt lt LF gt Jinan USR IOT Technology Limited 33 53 tec usr cn
14. query or set APN code format query parameter introductions AT APN CR CR LF APN lt code gt CR LF CR LF OK CR LF query current value of parameter AT APN CR or AT APN CR CR LF APN code CR LF CR LF OK CR LF Jinan USR IOT Technology Limited 42 53 tec usr cn _ USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A set parameter AT APN code CR CR LF OK CR LF gt parameter code APN code 24 AT SOCKA function query or set socket A parameters format query parameter introductions AT SOCKA CR CR LF SOCKA lt TCP UDP gt lt address gt lt port gt CR LF CR LF OK CR LF query current value of parameter AT SOCKA CR or AT SOCKA CR CR LF SOCKA protocol address port CR LF CR LF OK CR LF set parameter AT SOCKA protocol address port CR CR LF OK CR LF gt parameter protocol communication protocol e ICP TCP e UDP UDP address server address IP or domain name port server port 1 65535 25 AT SOCKB function query or set socket B parameters format query parameter introductions AT SOCKB CR CR LF SOCKB lt TCP UDP gt lt address gt lt port gt CR LF CR LF OK CR LF query current value of parameter AT SOCKB CR or AT SOCKB CR CR LF SOCKB protocol address port CR LF CR LF OK CR LF set parameter AT SOCKB protocol address por
15. r set i Be Honest Do Best USR GM3 User Manual www usriot com A query parameter introductions AT SOCKASL 7 CR CR LF SOCKASL lt short long gt CR LF CR LF OK CR LF query current value of parameter AT SOCKASL CR or AT SOCKASL CR CR LF SOCKASL type CR LF CR LF OK CR LF set parameter AT SOCKASL type CR CR LF OK CR LF gt parameter type connection style short short connection e long long connection 29 AT SOCKBSL gt function query or set socket B long or short connection gt format query parameter introductions AT SOCKBSL 7 CR CR LF SOCKBSL lt short long gt CR LF CR LF OK CR LF query current value of parameter AT SOCKBSL CR or AT SOCKBSL CR CR LF SOCKBSL type CR LF CR LF OK CR LF set parameter AT SOCKBSL type CR CR LF OK CR LF gt parameter type connection style short short connection e long long connection 30 AT SOCKALK gt function query socket A connection status gt format query current value of parameter AT SOCKALK CR or AT SOCKALK CR CR LF SOCKALK status CR LF CR LF OK CR LF gt parameter status socket A connection status connected connected e disconnected disconnected Jinan USR IOT Technology Limited 45 53 tec usr cn _ USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A 31 AT SOCKBLK gt
16. set register package sending type 31 0 2 guery or set register package type a Bad L bi Pad 4 J A 4 25 3 3 3 3 4 3 9 3 3 36 iearibeat package parameters commanc HEARTEN query or set enable disable heartbeat HEARTDT query or set heartbeat data HEARTTP query or set heartbeat package sending type HEARTTM query or set heartbeat time HTPTP query or set HTTP request type HTPURL query or set HTTP URL HTPSV query or set HTTP server address and port HTPHD DSTNUM query or set destination phone number SMSEND send SMS message 40 4 42 query or set HTTP request head 8 9 3 5 7 8 9 1 43 44 45 6 4 1 AT H function help message Jinan USR IOT Technology Limited 35 53 tec usr cn _ USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A gt format query AT H CR CR LF help message CR LF CR LF OK CR LF gt parameter help message commands introduction 2 AT Z gt function restart gt format AT Z CR CR LF OK CR LF 3 AT E function query and set enable disable echo gt format Query parameter introductions AT E CR CR LF E lt on off gt CR LF CR LF OK CR LF query current value of parameter AT E CR or AT E CR CR LF E status CR LF CR LF OK CR LF set parameter AT E status CR CR
17. 15 26 232 174 3 Local hast port 10000 Listening Recy Options Receive to file Add line return Receive As HEX Receive Pause Save Clear Send Options Data from file Auto Checksum Auto Clear Input Send As Hex Send Recycle Interval 300 ms Load Clear Hecv D Dese tec usr cn SG USR IOT Be Honest Do Best USR GM3 User Manual www usriot com POWER on means normal power supply off means power supply failure blink means running correctly off means not running on means attached off means attach failure on means socket A has connected to server off means not connect on means socket B has connected to server off means not connect DATA blink means transmission off means no transmission 4 Wait for LINKA led on send data to module via serial port For example if you send www usr cn at the same time the DATA led will be on for a while Then you will get www usr cn in the receiving window from our test server y USR TCP232 Test RS232 to Ethernet Convert tester E E NN 9 4 Fle F Options O Help H LOM Settings COM port data receive Network data receive Met5 ettings e Io TCP Server Bauda 115200 DPaity NONE 2 Lacal hast IP 8 bit 115 28 232 174 Ke geng 3 Local host port Stoph I bit v 1 DODO Close ry Listening Recy Options Recy Options Receive to f
18. 3 tec usr cn _ USR IOT p 3c gt DH Be Honest Do Best USR GM3 User Manual www usriot com A 4 3 Heart Beat Package 4 3 1 Description Under network transmission mode customers can send Heart Beat Package to network server or serial device Sending heart beat data to network server is used to check if connection is alive If GM3 sends data unsuccessful for 3 times it will try to reconnect to server sending heart beat data to serial device is usually used to query information from serial device instead of sending query command from server To do this can cut Some communication flow 4 3 2 Usage 1 Enable sending heart beat package AT HEARTEN on 2 Setthe destination of heart beat package data for instance to network server AT HEARTTP NET 3 Set heart beat data for instance set data as string www usr cn customer need to convert it to hex string 7777772E 5 3 22E636E AT HEARTDT 7777772E7573722E636E 4 Set sending period for instance 30 seconds AT HEARTTM 30 Besides customers need to configure socket A or socket B for network connection refer to chapter 4 1 2 3 After setting successful restart GM3 When connection is establishing If device is idle for 30 seconds GM3 will send string www usr cn to server via socket A and socket B Jinan USR IOT Technology Limited 28 53 tec usr cn 9 USR IOT mg gt f Be Honest Do Best USR GM3 User Manual www usriot c
19. 35 2 China stepi ds send to GM3 usr cn VER V1 0 gt Step2 receive from GM3 Jinan USR IOT Technology Limited 26 53 tec usr cn _ USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A 4 2 Register Package 4 2 1 Description Under network transmission mode customers can send Register Package Register Package is used to make server know what device is sending data or as a password Customers can choose to send register package to network server or serial device Register Package could be sent when network connection is established or as the head of every TCP UDP package The type of register package could be ICCID IMEI D2D ID or user defined data 4 2 2 Usage 1 Enable sending register package AT REGEN on 2 Set the type of register package data for instance using user defined data AT REGTP REGDT 3 Set user defined register data for instance set data as string www usr cn you need to convert it to hex string 7777772E 5 3 22E636E AT REGDT 7777772E7573722E636E 4 Set sending type for instance send data when connection is established AT REGSND link Besides customers need to configure socket A or socket B for network connection refer to chapter 4 1 2 3 After setting successful restart GM3 When connection is establishing GM3 will send string www usr cn to server via socket A and socket B Jinan USR IOT Technology Limited 27 5
20. CR CR LF OK CR LF 15 AT CFGTF function save current setting as default setting format setting AT CFGTF CR CR LF OK CR LF 16 AT VER gt function query version gt format query current value of parameter AT VER CR or AT VER CR CR LF VER version CR LF CR LF OK CR LF gt parameter version firmware version 17 AT SN function query SN code format query current value of parameter AT SN CR or AT SN CR CR LF SN code CR LF CR LF OK CR LF gt parameter code SN code 18 AT ICCID function query ICCID code Jinan USR IOT Technology Limited 40 53 tec usr cn _ USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A gt format query current value of parameter AT ICCID CR or AT HICCID CR CR LF ICCID code CR LF CR LF OK CR LF gt parameter code ICCID code 19 AT IMEI function query IMEI code format query current value of parameter AT IMEI CR or AT IMEI CR CR LF IMEl code CR LF CR LF OK CR LF gt parameter code IMEI code 20 AT CNUM gt function query the MS ISDN related to the subscriber gt format query current value of parameter AT CNUM CR or AT CNUM CR CR LF CNUM phone number CR LF CR LF OK CR LF gt parameter phone number phone number 21 AT UART function query or set serial port parameters gt format
21. GM3 User Manual www usriot com A 10 AT CACHEN function query or set enable disable data cache format query parameter introductions AT CACHENZ CR CRHLF F CACHEN on off CRHKLFMCRAKLF OK CRALF query current value of parameter AT CACHEN CR or ATXxCACHEN CR CR LF CACHEN status CR LF CR LF OK CR LF set parameter AT CACHEN status CR CR LF OK CR LF gt parameter status enable disable data cache on enable e off disable 11 AT STMSG function query or set welcome message format query parameter introductions AT STMSG CR CR LF STMSG lt welcome message gt CR LF CR LF OK CR LF query current value of parameter AT STMSG CR or AT STMSG CR CR LF STMSG message CR LF CR LF OK CR LF set parameter AT STMSG message CR CR LF OK CR LF gt parameter message welcome message when module powers up it will show them this can be used to check if module starts up normally 12 AT S function save current settings gt format setting AT S CR CR LF OK CR LF 13 AT RELD Jinan USR IOT Technology Limited 39 53 tec usr cn _ USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A gt function restore default settings gt format setting AT RELD CR CR LF OK CR LF 14 AT CLEAR function restore factory settings gt format setting AT CLEAR
22. L gt format query parameter introductions AT HTPURL CR CR LF HTPURL lt URL gt CR LF CR LF OK CR LF query current value of parameter AT HTPURL CR or AT HTPURL CR CR LF HTPURL URL CR LF CR LF OK CR LF set parameter AT HTPURL URL CR CR LF OK CR LF gt parameter URL HTTP request URL 43 AT HTPSV gt function query or set HTTP server address and port gt format query parameter introductions AT HTPSV CR CR LF HTPSV lt address gt lt port gt CR LF CR LF OK CR LF query current value of parameter AT HTPSV CR or AT HTPSV CR CR LF HTPSV address port CR LF CR LF OK CR LF set parameter AT HTPSV address port CR CR LF OK CR LF gt parameter Jinan USR IOT Technology Limited 50 53 tec usr cn 9 USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A address server address IP or domain name port server port 1 65535 44 AT HTPHD function query or set HTTP request head format query parameter introductions AT HTPHD CR CR LF HTPHD lt head gt CR LF CR LF OK CR LF query current value of parameter AT HTPHD CR or AT HTPHD CR CR LF HTPHD head CR LF CR LF OK CR LF set parameter AT HTPHD head CR CR LF OK CR LF gt parameter head HTTP request head 45 AT DSTNUM function query or set destination phone number format quer
23. NO NON NON ON VV WV Y 2 3 Features Baud rate 2400 4800 9600 14400 19200 28800 33600 38400 57600 115200 230400 460800 921600 Operating voltage 3 40V 4 20V Operating current average 55mA 80mA maximum 750mA Operating temperature 40 85 C Storage temperature 40 125 C Storage humidity 596 9596 RH Max TX power GSM900 class4 2W DCS1800 class1 1W Jinan USR IOT Technology Limited 6 53 tec Qusr cn _ USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A 2 4 Application Field n power industry USR GM3 can embedded in the electric meter power application terminals and other equipment to realize of reactive power compensation monitoring distribution monitoring meter collection and copy street lamp controlling and other applications to achieve smart city gt In Heating field USR GM3 can be embedded in m BUS concentrator to achieve the integration of the concentrator and wireless communication gt In water industry USR GM3 is also plays a significant role in system of water set copy wa ter resource management and remote monitoring wireless communication of water pipe n etwork monitoring gt In Environmental protection USR GM3 module can be integrated into the on line monitori ng system of flue gas on line monitoring CEMS water quality online monitoring gt Inthe field of equipment maintenance Equipment maintenance field USR GM3 use in the system of e
24. RELII ATTVER ATTZ Send command via v COM HET mer cx AT VER D Ai 2 1 Send command Send command Send command Send conmand Senduszr crear t vVER Jinan USR IOT Technology Limited 17153 Oprate via COM Com port ttt a Fandrate 115200 ATTENTM WIFI232 T S H GZ default 115200 a B C D2 57600 Close Com Oprate via Het 7 Search Module IF MAC Version IF HO 10 100 254 ATE ATI tec usr cn KN USR IOT Be Honest Do Best 4 1 2 4 2 Network AT command 1 AT NATEN on AT CMDPW Enable network command function Query command password USR GM3 User Manual We suppose the command password is usr cn here Besides customers need to configure socket A or socket B for network connection refer to chapter 4 1 2 3 After setting successful restart GM3 When connection is establishing send usr cn AT VER from network po USR TCP232 Test RS232 to Ethernet Convert tester File F Options O Help H COM port data receive COMSettings Pot um COM x B audF 1115200 DPaty NONE D ataB E bit StopB bit Open Recy Options Receive to file Add line return Receive As HEX Receive Pause Save Clear send Options Data from file Auto Checksum Auto Clear Input Send As Hex Send Recycle Interval 1000 ms Load Clear lo Ready Jinan USR IOT Technology Limited Send
25. User Manual www usriot com A 4 Module Functions 4 1 Work Mode USR GM3 module can work in 3 modes e SMS message transmission mode network transmission mode e HITPD mode 4 1 1 Switching Work Mode Customers can change work mode by sending AT WKMOD Work mode SMS message transmission AT WKMOD 7 SMS CR Network transmission AT WKMOD 7 NET CR HTTPD AT WKMOD HTTPD CR Note After setting customer need to restart module CR means carriage return hex number is OxOD About more details of AT commands please refer to chapter 5 4 1 2 Network transmission 41 21 Description TCP UDP Internet TCP UDP PC data data Serial data GM Serial device HE tree Under this mode customer s serial device can send data to TCP or UDP server via this module Module can also receive data from server and transmit the data to customer s serial device Jinan USR IOT Technology Limited 12 53 tec usr cn Qe A Customers don t need to know the detail of communication just need some simple setting USR IOT Be Honest Do Best USR GM3 User Manual www usriot com GM3 support 2 sockets socket A and socket B they are standalone with each other GM3 only supports TCP Client and UDP Client 4 1 2 2 Application Scenarios If user want to make communication between serial devices and devices on the network but in the place where serial device stays using router to connect to network is not con
26. X Receive Pause E HM Clear Send Options Data from file Auta Checksum Auto Clear Input Send As Hex Send Recycle Interval 11000 ms Load Clear LM part data receive WWW SY CIL 1 www oer CT Send LF Read Send 10 Hecv 10 Reset Jinan USR IOT Technology Limited Network data receive Send Le Ready 15 53 Send ett ettings 1 Protocol TEP Server 2 Local host IP 115 28 232 174 3 Lacal host port 10000 Listening Recv Options Receive to file Add line return Receive As HEX Receive Pause AWE Clear send Options Data from file Auta Checksum Auto Clear Input Send As Hex Send Recycle Interval 300 ms Load Clear Hecv Pezet tec usr cn po USR TCP232 Test RS232 to Ethernet Convert tester Fle F Options Q Help H COM part data receive LL M Settings Portum COM x Baudbt 115200 DPaity NONE v D akah E bit ba StapB 1 bit a Open Recy Options Receive to file Add line return Receive As HEX Receive Pause cave Clear Send Options Data from file Auta Checksum Auto Clear Input Send As Hex Send Recycle Interval 1000 ms Load Clear LE Read Send KN USR IOT Be Honest Do Best USR GM3 User Manual Network data receive Receive from 115 278 734 1 12882 WWW SE CIL Peers All Conmechons
27. ckage with head information set before so the package data Is GET 1 php data www usr cn HT TP 1 1 Host www usr cn Accept text html Accept Language zh CN User Agent Mozilla 5 0 Connection Keep Alive After sending data GM3 receives data HTTP 1 1 200 OK Date Wed 24 Jun 2015 04 08 35 GMT Jinan USR IOT Technology Limited 21 53 tec usr cn KN USR IOT mg gt Be Honest Do Best USR GM3 User Manual www usriot com Server Apache 2 0 63 Win32 mod ssl 2 0 65 OpenSSL 0 9 80 PHP 5 2 14 X Powered By PHP 5 2 14 Cache Control max age 600 Expires Wed 24 Jun 2015 04 18 35 GMT Content Length 19 Keep Alive timeout 15 max 99 Connection Keep Alive Content Type text html www usr cn After GM3 receives the above data it will analysis the information and send the result to serial device Jinan USR IOT Technology Limited 22 53 tec usr cn 9 USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A 4 1 4 SMS Message Transmission 4 1 4 1 Description Base station cell SMS SMS phone N Serial data GM Serial Mp a Device im Under this mode customer s serial device can send SMS message to a cell phone via this module Module can also receive SMS message from cell phone and transmit the message in serial data to customer s serial device Customers don t need to know the detail of communication just need some simple setting 4 1 4 2 Application Scena
28. d send request data GM3 could get the result from HTTP server and analysis it to get the useful data send the data to serial device 4 1 3 3 Usage Note All the AT commands terminate with carriage return OxOD we ignore it here About how to use AT commands please refer to chapter 5 We have one software for customers to operating AT commands customers can get it from our website http www usriot com Download 183 html Jinan USR IOT Technology Limited 19 53 tec usr cn A USR IOT e e mg D Be Honest Do Best USR GM3 User Manual www usriot com And we have one software for customers to do serial and network tests customers can get it from our website http www usriot com Product 78 html 1 1 2 3 4 5 Setting Set work mode as HTTPD AT WKMOD HTTPD Set request type as GET AT HTPTP get Set the address of HTTP server as www usr cn and set server port as 80 AT HTPSV www usr cn 80 Set the request URL as 1 php AT HTPURL2 1 php Set request head string AT HTPHD Accept text htmiI OD OA JAccept Language zh CN OD OA User Age nt Mozilla 5 0 0D OA Connection Keep Alive 0D 0A NOTE OD means carriage return it is OxOD in hex number OA means line feed it is OxOA in hex number Because this kind of data is not able to be put into AT commands string so it is tropical The rule is two bytes in means one byte in hex form For example
29. er introductions AT HEARTTP CR CR LF HEARTTP lt COM NET gt CR LF CR LF OK CR LF query current value of parameter AT HEARTTP CR or AT HEARTTP CR CR LF HEARTTP type CR LF CR LF OK CR LF set parameter AT HEARTTP type CR CR LF OK CR LF gt parameter type sending type e COM send data to serial port e NET send data to network 40 AT HEARTTM function query or set heartbeat time gt format query parameter introductions AT HEARTTMZ CR CR LF HEARTTM lt time gt CR LF CR LF OK CR LF query current value of parameter AT HEARTTM CR or AT HEARTTM CR CR LF HEARTTM time CR LF CR LF OK CR LF set parameter AT HEARTTM time CR CR LF OK CR LF gt parameter time strobe period unit is second 41 AT HTPTP gt function query or set HTTP request type gt format Jinan USR IOT Technology Limited 49 53 tec usr cn 9 USR IOT e noc r set i Be Honest Do Best USR GM3 User Manual www usriot com A query parameter introductions AT HTPTP CR CR LF HTPTP lt GET POST gt CR LF CR LF OK CR LF query current value of parameter AT HTPTP CR or AT HTPTP CR CR LF HTPTP type CR LF CR LF OK CR LF set parameter AT HTPTP type CR CR LF OK CR LF gt parameter type HTTP request type e GET get e POST post 42 AT HTPURL gt function query or set HTTP UR
30. function query socket B connection status format query current value of parameter AT SOCKBLK CR or AT tSOCKBLK CR CR LF SOCKBLK status CR LF CR LF OK CR LF gt parameter status socket B connection status connected connected disconnected disconnected 32 AT REGEN function query or set enable disable register package format query parameter introductions AT REGENZ CR CR LF REGEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT REGEN CR or AT REGEN CR CR LF REGEN status CR LF CR LF OK CR LF set parameter AT REGEN status CR CR LF OK CR LF gt parameter status enable or disable register package on enable e off disable 33 AT REGTP gt function query or set register package data type gt format query parameter introductions AT REGTP CR CR LF REGTP lt ICCID IMEI REGID REGDT gt CR LF CR LF OK CR LF query current value of parameter AT REGTP CR or AT REGTP CR CR LF REGTP type CR LF CR LF OK CR LF set parameter AT REGTP type CR CR LF OK CR LF Jinan USR IOT Technology Limited 46 53 tec usr cn _ USR IOT l ve sat i Be Honest Do Best USR GM3 User Manual www usriot com A gt parameter type type of register data ICCID ICCID code IMEI IMEI code REGID register ID for D2D function REGDT
31. ile Receive to file Add line return Add line return Receive As HEX Receive As HEX Receive Pause Receive Pause Save Clear C ave Clear Send Options Send Options Data from file Data from file Auto Checksum Auto Checksum Anto Clear Input kuto Clear Input Send As Hex Send As Hex Send Recycle Send Recycle Interval 11000 ms Interval 300 ms Load Clear Load Clear L Ready Send 14 Recy 14 Hec 0 Reset Jinan USR IOT Technology Limited 5 53 tec usr cn 9 USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A 2 Introduction 2 1 Short Description USR GM3B is new listing at 2015 it is one embedded GSM module USR GM3 is designed for embedded system it is so small and convenient that you can integrate it to your system easily 2 2 Characteristic Small and completed function GPRS DTU transmission between serial and GPRS Support GSM850 900 DCS 1800 1900 Support GSM GPRS EDGE support 2G 3G 4G SIM card but based on 2G network Support 2 sockets Support TCP and UDP 4KB cache for each of sockets user can choose to cache data or not Support register package and heart beat package Support setting parameters via SMS message Support 4 work modes SMS message transmission mode network transmission mode and HTTPD mode Support basic and extend AT command sets Support similar RFC2217 Support flow control RTS CTS Support RS485 VV
32. ive Pause Cave Clear Send Options Recv Options Receive to file Add line return Receive As HEX Receive Pause Cave Clear Send Options Data from file Auto Cheeksum Auto Clear Input Send As Hex Send Recycle Interval 300 ms Load Data from file Auta Checksum Auto Clear Input Send As Hex Send Recycle Interval 1000 ms Load Feers All Conmections Send Send Clear Clear Send 0 Hecv 0 Reset er Ready send Hec Reset Le Read 2 Set Module Parameters 1 Set work mode as network transmission AT WKMOD NET 2 Enable socket A AT SOCKAEN on 3 Set socket A as TCP client server address is test usr cn domain server port is 2317 AT SOCKA TCP test usr cn 2317 Jinan USR IOT Technology Limited 14 53 tec usr cn KN USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 3 Restart GM3 wait the connection of socket A has been established send data to module via serial port then you will get data at network server software And send data to module via network then the data will be got at module serial port po USR TCP232 Test RS232 to Ethernet Convert tester a E Fle F Options O Help H LL M Settings Porth urn CUME E Bauda 115200 DPaity NONE v akah E bit StapB 1 bit Close kecy Options Receive to file Add line return Receive As HE
33. license to intellectual property rights Except the responsibility declared in the product sale clause USR does not assume any other responsibilities In addition USR does not make any warranties for the sale and use of this product including the suitability of the product for a particular purpose merchantability or fitness for any patent copyright or other intellectual property infringement etc USR may make changes to specifications and product descriptions without notice Appendix C Update History 2015 6 20 V1 0 basic version created 2015 6 20 V1 0 6 fix some errors change reload pin function lt END gt Jinan USR IOT Technology Limited 53 53 tec usr cn
34. o set the parameters of GM3 module There are two kinds of commands basic AT commands and extended AT commands Basic AT commands are used to setting the running parameters of GM3 under SMS message transmission network transmission and HTTPD modes Extended AT commands are used to design new functions by customers About how to use extended AT command please refer to GM3 extended AT commands User Guide 5 1 Operating AT command When GM3 works in one of the three modes SMS message transmission network transmission or HTTPD mode You can get module into command mode by sending specific timing data to it then send commands to change module s running parameters If changing is done get module back to previous work mode Sending data to module T a AT ENTM Sending data to device n ok In the above figure abscissa axis means time the data above time axis is sent to module from device and the data bellow time axis is sent to device from module time requirement T1 gt 200ms T2 lt 50ms T3 lt 50ms T5 lt 3s Go into command mode Jinan USR IOT Technology Limited 31 53 tec usr cn _ USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A 1 Module is in SMS message transmission network transmission or HTTPD mode 2 Device send to module then module send a to device 3 If device receives a it must send a to module within 3 seconds 4 Module receives a
35. om A 4 4 UART 4 4 1 RS485 4 4 1 1 Description GM3 module supports RS485 function RS485 is half duplex the direction of transmitting data should be controlled manually If customer enables module s RS485 function the pin 7 of module is used to control the direction of communication Refer to command AT UART 4 4 1 2 RS485 Reference Circuit GM3 4 4 2 Similar RFC2217 4 4 2 1 Description This function is similar to RFC2217 Customer can change the parameters of serial port dynamically via network This modification is temporary when module restarts the parameters changed will return back to previous values Jinan USR IOT Technology Limited 29 53 tec usr cn Qe A 4 4 2 2 Definition of similar RFC2217 USR IOT Be Honest Do Best USR GM3 User Manual www usriot com This protocol contains 8 bytes details as the following form Baud Rate Bits Parameters Check Sum Fixed Refer to the Sum of Baud Rate interpretation MSB data following table and Bits Parameters Exmaple1 55 AA 55 01 C2 00 83 46 115200 N 8 1 Exmaple2 55 AA 55 00 25 80 83 28 9600 N 8 1 Interpretation of bits parameters 1 0 Data bits Stop bits Co jee EN Enable disable parity 5 4 Parity type No defined Jinan USR IOT Technology Limited 30 53 tec usr cn 9 USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A 5 Parameters Setting Sending AT commands is the only way t
36. pter is necessary NOTE 1 If itis the first time to use our module for you please use our EVK Evaluation Kit it may save you lot of trouble and time 2 keep default setting in this test Jinan USR IOT Technology Limited 3 53 tec usr cn 1 2 a Be Honest Do Best USR IOT Transmission USR GM3 User Manual www usriot com 1 Put SIM card into the socket on EVK connect COM1 to PC s serial port with cable 2 Open test software USR TCP232 Test set right serial port number and baud rate and open it As the following figure 3 Power up the EVK with DC 5V adapter then the POWER led will be on several seconds later the WORK led will twinkle and then GPRS LINKA led will be on 7 Jinan USR IOT Technology Limited S USR TCP232 Test R5232 to Ethernet Convert tester Fb v EK E E e 4 Fle F Options O Help H LL M Settings Pol um COM bi Bauda 115200 DPaity NONE xl D atab E bit M Stoph 1 bit Close Recy Options Receive to file Add line return Receive As HEX Receive Pause Saws Clear Send Options Data from file Auto Checksum Auto Clear Input Send As Hex Send Recycle Interval 1000 ms Load Clear Le Ready Meaning of led Send COM port data receive Network data receive Send Send Hec D Send Reset L Ready 4 53 NetSettings 1 Protocol TCP Server 2 Local host IP 1
37. quipment remote monitoring such as elevator monitoring air conditioning monitoring Other GPRS communication applications Jinan USR IOT Technology Limited 7 53 tec usr cn KN USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 3 Hardware 3 1 Pin Description 3 1 1 Outside View T Tr input 3 4 4 2Y UART to GPRS 3 1 2 Pin Assignment Top Jinan USR IOT Technology Limited 8 53 tec usr cn KN USR IOT Be Honest Do Best USR GM3 User Manual www usriot com 0 87 D Wi co 1 27 P i O Co O 2f 9t La LxLxH 27 94x24x4 4 Umit mm 3 1 3 PCB Layout 25 40 III HIT 20 94 Unit mm Jinan USR IOT Technology Limited 9 53 tec Qusr cn _ USR IOT A 3 1 4 Pin Description Note P for power T for input O for output N for not connect Pin Name Type Description a veo P Powersupply awiowoma 2 vec LE Powersupply 33Vtgoud Ls ew P Powrgwnd lt Ta on P Powerground 75 Reload 1 z n ts restore default seting 3s restore factory seting Te wc n koeprocomesing OO OOO L7 Reus o mmIRSASRXTX Ta wc In keem To Res 1 been pulkaown tgforrestah Tro cens 0 GPRS status high for attached ow for not attached Tar nka o SocketA status righ for connected ow for not connected GT
38. rios If user s device is a serial device it is placed at remote area User wants to communicate with this device by SMS message to check what status the device is in or to control the device 4 1 4 3 Usage Note All the AT commands terminate with carriage return OxOD we ignore it here About how to use AT commands please refer to chapter 5 We have one software for customers to operating AT commands customers can get it from our website http www usriot com Download 183 html And we have one software for customers to do serial and network tests customers can get Jinan USR IOT Technology Limited 23 53 tec Qusr cn KN USR IOT Be Honest Do Best USR GM3 User Manual www usriot com it from our website http www usriot com Product 78 html 1 Setting 1 Set the destination phone number AT DSTNUM phone number 2 Set work mode as SMS message transmission AT WKMOD SMS 2 Reset module and send message to module via serial port then you will get the message on your cellphone Then send a message back to module then you will get the message from module s serial port po USR TCP232 Test RS232 to Ethernet Convert tester ka EI E File F Options O Help H LL M Settings LM part data receive Network data receive MetS ettings PotNum COME rege A Te er STRA T 1 Protocol Bauds 115200 P aity NONE E D atab E bit ad
39. t CR CR LF OK CR LF gt parameter protocol communication protocol e ICP TCP Jinan USR IOT Technology Limited 43 53 tec usr cn 9 USR IOT l nac sat i Be Honest Do Best USR GM3 User Manual www usriot com A e UDP UDP address server address IP or domain name port server port 1 65535 26 AT SOCKAEN function query or set enable disable socket A format query parameter introductions AT SOCKAEN CR CR LF SOCKAEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT SOCKAEN CR or AT SOCKAEN CR CR LF SOCKAEN status CR LF CR LF OK CR LF set parameter AT SOCKAENsstatus CR CR LF OK CR LF gt parameter status enable or disable socket A on enable e off disable 27 AT SOCKBEN function query or set enable disable socket B format query parameter introductions AT SOCKBEN CR CR LF SOCKBEN lt on off gt CR LF CR LF OK CR LF query current value of parameter AT SOCKBEN CR or AT SOCKBEN CR CR LF SOCKBEN status CR LF CR LF OK CR LF set parameter AT SOCKBEN status CR CR LF OK CR LF gt parameter status enable or disable socket B on enable e off disable 28 AT SOCKASL function query or set socket A long or short connection format Jinan USR IOT Technology Limited 44 53 tec usr cn _ USR IOT e noc
40. unke o oket status high for connected ow for not connected Tro Dara o pata status high for transmission low for not transmission Tra work o Running status high for normal kr 1 ang 1 Shut down pulldown for shut modue Tir ono P Powergiound Cis SPEAKER o peakernegatvetominal Tro SPEAKER 0 Speaker positive termina SSS al we 1 Microphone negative terminal SSS Tar mor 1 Microphone postive terminal Cz vsw P Power supply for Sim car Cz omcwr o lockineforsiM Cz smRsr o Res mefrsM Cm veao P baam Jinan USR IOT Technology Limited 10 53 Be Honest Do Best USR GM3 User Manual www usriot com tec usr cn SG USR IOT Be Honest Do Best USR GM3 User Manual www usriot com a ne EE s mer o XWetram Ca mer 1 Riner Tar ers o jTsmetram Ca rst bien NEN NEN To NEN RF output 38 41 Ta ew NC GND 3 1 5 Outside Antenna 1 Theline of Antenna should be short to make the insert loss lower and routed as RF line strictly to keep 50ohm matching 2 Its better to put the antenna pad on the edge of the PCB Jinan USR IOT Technology Limited 11 53 tec usr cn _ USR IOT Be Honest Do Best USR GM3
41. venient for user But signal from base station is available so GM3 module can build a bridge between serial device and devices on the network 4 1 2 3 Usage Note All the AT commands terminate with carriage return OxOD we ignore it here About how to use AT commands please refer to chapter 5 We have one software for customers to operating AT commands customers can get it from our website http www usriot com Download 183 html And we have one software for customers to do serial and network tests customers can get it from our website http www usriot com Product 78 html 1 Set CP server software log in remote server via remote desktop connection gt Remote Desktop Connection Lo jm unii Remote Desktop Mot Connection Computer test usr cn User name AY 13052816 You will be asked for credentials when you connect Options Help Then open network test software set the parameters as the bellowing Jinan USR IOT Technology Limited 13 53 tec usr cn KN USR IOT Be Honest Do Best USR GM3 User Manual www usriot com File F Options O LOM Settings PortNum COM3 gt Bauda 115200 Local host IF NONE D Palty 115 28 232 174 Datab E bit E 3 Local host port Open Disconnect Help H COM port data receive Network data receive MetS ettings 1 Protocol TCP Server Recv Options Receive to file Add line return Receive As HEX Rece
42. y parameter introductions AT DSTNUM 7 CR CR LF DSTNUM lt number gt CR LF CR LF OK CR LF query current value of parameter AT DSTNUM CR or AT DSTNUM CR CR LF DSTNUM number CR LF CR LF OK CR LF set parameter AT DSTNUM number CR CR LF OK CR LF gt parameter number destination phone number in SMS mode 46 AT SMSEND gt function send SMS message gt format query parameter introductions AT SMSEND 7 CR CR LF SMSEND lt number gt lt 1 2 3 gt lt data gt CR LF CR LF OK CR LF set parameter AT SMSEND number type data CR Jinan USR IOT Technology Limited 51 53 tec usr cn Be Honest Do Best KN USR IOT USR GM3 User Manual www usriot com CR LF OK CR LF gt parameter number destination phone number type coding scheme e 1 ASCII coding compressed e 2 8 bits coding not compressed e 3 UCS8 coding data content of SMS message Jinan USR IOT Technology Limited 52153 tec usr cn 9 USR IOT Be Honest Do Best USR GM3 User Manual www usriot com A Appendix A Contact Company Jinan USR IOT Technology Limited Address 1 728 Huizhan Guoji Cheng Gaoxin Qu Jinan Shandong China Tel 86 531 55507297 86 531 88826739 Web http www usriot com Support http h usriot com Email sales usr cn Appendix B Disclaimer This document provides information about USR GM3 modules this document does not grant any

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