SIM800L to send SMS

Official Hardware Retired GSM Shield
1

Hey...
Just wanted to ask how do I use the Arduino with the SIM800L component to send an sms using a SIM? I've researched online, but I'm not able to get much info...

Thanks and Regards,
MathCoder

2

No you did not.

First link:
https://www.bitfoic.com/components/sim800l-gsm-module-description-pinout-features-and-how-to-use-sim800l-with-arduino?id=76

3

Okay, thanks... I will only be able to use a 3.7V Li-Po battery for powering the board, right? Will 9V be too much of an external supply, if I plan to use an LCD display and a keypad along with the SIM800L?

4

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