Basic AT Commands for SIM900A GSM/GPRS Module

#Nexample #Arduino #Engineering
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AT To Check GSM MODULE
AT+CPIN? To Check The pin
AT+IPR=9600 To set the Baud Rate
AT&W To Save Baud Rate
AT+CGSN Request product serial
number identification
AT+CGMI Request manufacturer identification
AT+CGMM Request model identification
AT+CGMR Request revision identification
AT+CPAS Phone activity status
AT+CSQ Signal quality
AT+CMGF=1 To Set Message Format
AT+CMGS="Your Mobile Number" Request Message Sent
Type Your Message Press CTRL Z For Send
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[@jatinanand3726]

Nice video to setup a module.

[@vigneshwaran568]

where is the rx and tx pins in this module

[@Nexample]

You Can see print on board

[@vigneshwaran568]

no sir not found.please,tell me there is 20 pins was there which is rx and tx?

[@Nexample]

Can you Show image ?

[@vigneshwaran568]

this is the image sir !