Arduino Forum

Topics => Home Automation and Networked Objects => Topic started by: Jose_Laguna on Mar 07, 2018, 01:57 am

Title: GSM not working with Arduino UNO
Post by: Jose_Laguna on Mar 07, 2018, 01:57 am
Hi, I've beeb trying to set a sketch to send and receive SMS but it looks there is a problem with my SIM card, I tried different options setting up the module to be able to standby to read messages. I tried CNMI (1,2,0,0,0) and (2,2,0,0,0) but no one works. I live in Mexico and I'm using Movistar operator. Would you please help me with any recommendations or a sketch to verify what the problem is?
Thank you!