Which cheap/primitive GSM modem to choose?

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Just__Alex2015-12-01 01:53:12

Iron

Just__Alex, 2015-12-01 01:53:12

Hello! Before me was approximately the same task as in this post GSM modem with an API for receiving SMS . Previously, I did not encounter such tasks. For me, the most difficult thing now is the GSM modem.
I found the following as an option: www.odduino.com/shop/373/desc/gsm-gprs-modul-sim800l , but I don't understand how to connect and configure it to a PC. (Does this require an arduino?)
Any advice would be greatly appreciated. Thank you so much.

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5 answer(s)

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Dmitry, 2015-12-01
@zmeyjr

Yes, like any GSM-"whistle"-modem from OpSoSa. It, like the good old Internet and fax modems, works through AT commands. Decide on the OS, then look for the software for your needs.

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nirvimel, 2015-12-01
@nirvimel

You probably mean GPRS modem (GSM - voice transfer protocol , modem - data transfer device ). Today, the market is mainly 3G modems. Pure GPRS can even cost more (this is a rare legacy and if the buyer has no choice, then he pays as much as they ask). But there is a simple solution - (almost) any old phone with a USB cable (the connector on the phone itself may not look like USB) can be put into AT-command mode (the main mode is an external drive) and used as a GPRS modem.

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iv_k, 2015-12-01
@iv_k

- the cheapest is a usb whistle, but there may be problems with AT commands (some require flashing / unlocking and other dances with a tambourine)
- modems that support GSM0507, GSM0707, such as cinterion, irz and similar, are usually stuck in the comport. but they are not cheap.
- modules like SIM900, SIM800, telit, etc. They need adapters to attach to a computer. Cheap but not for everyone

S

solalex, 2015-12-01
@solalex

I have an old dir-320 router with an E1550 3g modem. Openwrt is installed on the router + a flash drive is used in the modem as extroot. Raised Asterisk. It is used as a GSM-SIP gateway, in addition it receives sms and sends them using ssmtp and mutt to mail. Everything works autonomously and is quite stable.

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skreg, 2015-12-11
@skreg

Standard Baline modem huawei E3131 + Beeline Usb-Modem program.
A very big plus is that all data is stored in the SQLite database. Database without a password.
+ The program itself combines large SMS.
- binding to the operator.
The modem comes with a SIM card, which fits 3-4 sms. Therefore, a phone SIM card was bought.
Good luck.