Update README.md

This commit is contained in:
Volodymyr Shymanskyy
2016-12-02 20:07:51 +02:00
committed by GitHub
parent e7edbfdaf6
commit 2b5d010bea

View File

@@ -44,9 +44,9 @@ TinyGSM pulls data gently from the modem, so it can operate on very little RAM.
- 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)
3. Provide a good, [stable power supply](wiki/Powering-GSM-module) (up to 2A, 4.0-4.2V or 5V according to your module documentation)
4. Check if serial connection is working (Hardware Serial is recommended)
Send an ```AT``` command using [this sketch](tools/AT_Debug/AT_Debug.ino)
5. Check if GSM antenna is attached
## Troubleshooting