04-04-2017, 01:36 AM
(03-28-2017, 05:39 PM)tllim Wrote: There are several eSMS services that you can subscribed such as IBM Watson, this allows you to send SMS message without additional hardware. Under certain amount and for person usage, I think the SMS service is free under Watson.
Thank you. The online eSMS services are good, but when no internet connection they are unusable. I think the alert messages (breaking a car or a house - cut internet cables) need to be using independent networks. Maybe I will try some Arduino GSM developer board.