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- ```
- _______ _____ __ _ __ __ ______ _______ _______
- | | | \ | \_/ | ____ |______ | | |
- | __|__ | \_| | |_____| ______| | | |
-
- ```
-
- A small Arduino library for GPRS modules, that just works
-
- Currently only SIM800/SIM900 are tested.
- More modules may be supported later.
-
- ## Getting started
-
- 1. Using your phone:
- - Disable PIN code on the SIM card
- - Check your ballance
- - Check that APN,User,Pass are correct and you have internet
- 2. Ensure the SIM card is correctly inserted into the module
- 3. Provide a good, stable power supply (up to 2A, 4.0-4.2V or 5V according to your module documentation)
- 4. Provide good, stable serial connection
- (Hardware Serial is recommended)
- 5. Check if GSM antenna is attached
-
- ## Troubleshooting
-
- Sometimes (especially if you played with AT comands), your module configuration may become invalid.
- In this case, there may be different problems:
-
- * Can't connect to the GPRS network
- * Can't connect to the server
- * Sent/recieved data contains invalid bytes
- * etc.
-
- To return module to **Factory Defaults**, use this sketch:
- File -> Examples -> TynyGSM -> tools -> [FactoryReset](https://github.com/vshymanskyy/TinyGSM/blob/master/tools/FactoryReset/FactoryReset.ino)
-
- __________
-
- ### License
- This project is released under
- The GNU Lesser General Public License (LGPL-3.0)
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