I am looking for the most cost-effective cellular solution that will work with all current US cellular networks. The project is a send-only Iot device that will send a few lines of information (far less than this post) only if a specific and rare safety condition occurs. In the lifetime of the devi…

Which GSM/GPRS/GPS shield do you recommend?

ThresholdEngineering September 23, 2018, 3:12pm 5

THIS is actually quite helpful !!

Topic		Replies	Views
GSM GPRS Shields Arduino GSM Shield	3	1254	May 6, 2021
Arduino Cellular Boards Project Guidance	3	536	May 5, 2021
LTE module recommendation Hardware	11	4105	August 2, 2022
GSM shields Project Guidance	6	642	May 5, 2021
4G Voice Shield for Uno? Project Guidance	13	2508	June 15, 2022