Hi,
I am using SimCom SIM7100E modem. I have tested it for GSM and SMS successfully. Then, I have also tested it for internet connection, namely SMTP, POP3, HTTP, HTTPS, FTP, FTPS, GPRS, 3G, 4G, etc.. However, I got some errors while doing Internet Connection tests.
I opened the network (i.e. being client). I took an IP address from network, (it returns when I check it with AT commands), so I assume that I have correctly established Internet and Link Layers. I have also establish the Application Layer, i.e. SMTP, HTTP, etc.. However, when I open network and try to send an email, I took response "Server Error". Hence I think I cannot establish my TCPIP layer.
Indeed, I tried to use both transparent(data) and non-transparent(command) modes. I assume that I have to provide following 2 steps for internet connection on this module.
Hence, I should configure it for being both transparent mode and nontransparent mode; as being client.
I have studied the Internet Service Application Note, HTTP Application Note, FTP Application Note, Email Application Note ,TCPIP Application Note and also AT Command Manual for SIM7100E. However, these sources do not have any example code from beggining to the end of a GPRS, 3G, or LTE connection thru application layer.
I have also studied other SIMCOM GSM modules, indeed they had some example codes, but since Command Sets are different than SIM7100 and architecture are different, I could not use them.
How could I use the Command set of SMTP, HTTP or FTP etc. with this GSM modem and make a full internet connection? Is there any code examples, or a ordered list of the commands in order to help me to connect internet? What is your opinion? What should I do, in order to just use the modem as I use like in a mobile phone internet?
Best Regards
ONUR YILDIZ
I am using SimCom SIM7100E modem. I have tested it for GSM and SMS successfully. Then, I have also tested it for internet connection, namely SMTP, POP3, HTTP, HTTPS, FTP, FTPS, GPRS, 3G, 4G, etc.. However, I got some errors while doing Internet Connection tests.
I opened the network (i.e. being client). I took an IP address from network, (it returns when I check it with AT commands), so I assume that I have correctly established Internet and Link Layers. I have also establish the Application Layer, i.e. SMTP, HTTP, etc.. However, when I open network and try to send an email, I took response "Server Error". Hence I think I cannot establish my TCPIP layer.
Indeed, I tried to use both transparent(data) and non-transparent(command) modes. I assume that I have to provide following 2 steps for internet connection on this module.
- In the first step, I have to use non-transparent mode for Internet Configuration (When I select this mode, I could use any AT command i.e. SMTP or any other AT Commands. However, I could not send or receive data in this mode.)
- In the second step, namely transparent mode, I could send or receive any data. However, I could not use any SMTP configuration commands, or even enter any AT commands. When I try to send email, it gives no response.
Hence, I should configure it for being both transparent mode and nontransparent mode; as being client.
I have studied the Internet Service Application Note, HTTP Application Note, FTP Application Note, Email Application Note ,TCPIP Application Note and also AT Command Manual for SIM7100E. However, these sources do not have any example code from beggining to the end of a GPRS, 3G, or LTE connection thru application layer.
I have also studied other SIMCOM GSM modules, indeed they had some example codes, but since Command Sets are different than SIM7100 and architecture are different, I could not use them.
How could I use the Command set of SMTP, HTTP or FTP etc. with this GSM modem and make a full internet connection? Is there any code examples, or a ordered list of the commands in order to help me to connect internet? What is your opinion? What should I do, in order to just use the modem as I use like in a mobile phone internet?
Best Regards
ONUR YILDIZ