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TinyGSM_Senseright
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TinyGSM_Senseright/README.md

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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

License

This project is released under The GNU Lesser General Public License (LGPL-3.0)