1.3 KiB
		
	
	
	
	
	
	
	
			
		
		
	
	
			1.3 KiB
		
	
	
	
	
	
	
	
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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
- Using your phone: - Disable PIN code on the SIM card - Check your ballance - Check that APN,User,Pass are correct and you have internet
 - Ensure the SIM card is correctly inserted into the module
 - Provide a good, stable power supply (up to 2A, 4.0-4.2V or 5V according to your module documentation)
 - Provide good, stable serial connection (Hardware Serial is recommended)
 - 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
License
This project is released under The GNU Lesser General Public License (LGPL-3.0)