SMS modem

$ 7.00

This A6 GPRS modem allows you to send and receive SMS.

It has a Micro-USB port which makes it easy to provide it with the power it requires. Make sure you use at least a 2.3A USB power supply.

Tip: if you buy a power adapter with two ports, then you can also power the Arduino from it at the same time.

Aliexpress You can find this part online.