Useful Technical Information

How to create contact list?

Please refer to our training video https://youtu.be/c79Rm80zGm4 .

How to resolve code 10 error?

Please refer to our video https://youtu.be/tG7Z8i6tOwg .

What are the AT commands?

Almost all of the Hayes modem commands start with the two letter sequence AT – for getting the modem’s attention. Because of this, modem commands are often called AT Commands. Below are the complete summary and explanation of the AT command set.

AT commands

How to change Baud Rate from 115200 to 9600 ?

1. Start-> Accessories-> Communication-> Hyperterminal
2. Open new connection
3. “Connect using:” the correct COM port, you will see a
windows->change Bits per second to “115200
4. Type “ATE1” and press Enter (it’ll show “ok”)
5. Type “AT+IPR=9600” and press Enter (it’ll show “ok”)
6. Click on “disconnect” icon
7. Go to Properties and change the Bits per second to “9600
8. type “AT&W” and press Enter (it’ll show “ok”)

Then it’ll be changed to 9600.

How to change Baud Rate from 9600 to 115200 ?

1. Start-> Accessories-> Communication-> Hyperterminal
2. Open new connection
3. “Connect using:” the correct COM port, you will see a
windows->change Bits per second to “9600
4. Type “ATE1” and press Enter (it’ll show “ok”)
5. Type “AT+IPR=115200” and press Enter (it’ll show “ok”)
6. Click on “disconnect” icon
7. Go to Properties and change the Bits per second to “115200
8. Type “AT&W” and press Enter (it’ll show “ok”)

Then it’ll be changed to 115200.

How To Send SMS From Computer Using AT Commands With GSM/GPRS Modem?

1. Plug In Your GSM/GPRS modem
2. Find out which COM Port the modem is connecting
3. Start-> Accessories-> Communication-> Hyperterminal
4. Open new connection
5. “Connect using:” the correct COM port, you will see a
windows->change Bits per second to “9600” (for GSM) “115200” (for GPRS)
6. Type “AT” and press Enter (it’ll show “ok”)
7. Type “AT+CMGF=1” and press Enter (it’ll show “ok”. It is to set the GSM / GPRS modem to operate in SMS text mode. )
8. Type “AT+CMGW=”+651234567″ ” and press Enter (it’ll show “>”.”+65″ is country code, “1234567” is recipient’s number)
9. Start typing SMS. When finished, press Ctrl + Z (it’ll show “+CMGW:1”, it means the message is stored as index:1 in the message storage)
10. Type “AT+CMSS=1” and press Enter (It’ll show something like “+CMSS: 219”. “219” is the reference no of the sent message)
11. If it shows “OK” at the end, it means the message is successfully sent.

How To Receive SMS Using Computer With GSM/GPRS Modem?

1. Plug In Your GSM/GPRS modem
2. Find out which COM Port the modem is connecting
3. Start-> Accessories-> Communication-> Hyperterminal
4. Open new connection
5. “Connect using:” the correct COM port, you will see a
windows->change Bits per second to “9600” (for GSM) “115200” (for GPRS)
6. Type “AT” and press Enter (it’ll show “ok”)
7. Type “AT+CMGF=1” and press Enter (it’ll show “ok”. It is to set the GSM / GPRS modem to operate in SMS text mode. )
8. Type “AT+CMGL=”ALL” ” and press Enter (there is message received, it’ll show
” +CMGL: 1,”REC READ”, “+651234567″,,”01/01/09,09:20:20+12
Hi, How are you? ” )
9. It shows “OK” at the end.

How To Check SMS Delivery Status Report & Newly Received Message?

1. Do The Step 1 To 6 As Above
2. At The Hyper Terminal, Type The Following AT Command

AT+CSMP=49,167,0,0
OK
AT+CNMI=2,2,0,1,0
OK
AT+CMGS=”Mobile Number”
> Message content (Ctrl+Z)
+CMGS: 72
OK
+CDS: 6,228,”Mobile Number”,129,”08/10/22,10:08:35+32″,”09/10/22,10:08:38+32″,0
+CMT: “Mobile Number”,,”08/10/22,10:09:17+32″
testing

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