Uploaded April 2013 | Updated September 2026, 2 weeks ago

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HOW TO TEST

1. INSERT THE SIM CARD INTO SIM TRAY BACKSIDE
2. CONNECT THE RS232 CABLE TO THE PC SERIAL PORT - SERIAL PORT PROPERTIES ( RESTORE DEFAULTS - 9600 BAUD RATE)
3. OPEN HYPER TERMINAL FROM WINDOWS START, PROGRAMS, ACCESSORIES, COMMUNICATIONS, HYPER TERMINAL
4. SELECT THE COMPORT WITH BAUD RATE 9600
5. TYPE .AT. ECHO .OK. IF ECHO IS .OK. COMMUNICATION IS OK

Voice call
Initiating outgoing call:
ATD+ mobile number; press enter
For disconnecting the active call:
ATH press enter
For receiving incoming call:
ATA press enter

For sending SMS in text Mode:

AT+CMGF=1 press enter
AT+CMGS="mobile number" press enter
Once The AT commands is given' ' prompt will be displayed on the screen.
Type the message to sent via SMS. After this, press ctrl+Z to send the SMS.
If the SMS sending is successful, "ok" will be displayed along with the message number.


For reading SMS in the text mode:
AT+CMGF=1 Press enter
AT+CMGR= no.
Number (no.) is the message index number stored in the sim card. For new SMS, URC will be received
on the screen as +CMTI: SM 'no'. Use this number in the AT+CMGR number to read the message.
Voice call
Initiating outgoing call:
ATD+ mobile number; press enter
For disconnecting the active call:
ATH press enter
For receiving incoming call:
ATA press enter


**************************************************USEFUL AT COMMANDS FOR SETTINGS *****************************************************************

TO CHANGE BAUDRATE - AT+IPR=BAUDRATE(Ex 9600) 0-115200

TO SAVE THE SETTINGS AT&W

TO RESTORE FACTORY DEFAULTS TYPE AT&F THEN SAVE IT AT&W


TISHITU
ISO: 9001-2008
RESEARCH AND CONSULTANCY CELL OF INDUSTRIAL APPLICATION
A Joint Accreditation System of Australia and New Zealand
Copyright © All Rights Reserved tishitu.org Reg No.08122629691/SSI
Accreditation No. M3111204IN

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Please watch: "Lifi Communication by Arduino UNO Download Project"
youtube.com/watch?v=c4gC8dbaiZg
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