Send and receive real SMS text messages with your Arduino! A self-contained texting device with its own SIM card and phone number.
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A user emailed me to ask:
could you please help me make another menu for phone numbers?
I already made the pager and can receive and send messages, but would like to send messages to other friends too? It would be nice if you could help!
I'm not able to sit down and do this myself, but was able to offer a few hints at least, and responded:
Hi thanks for reaching out! I’m happy to give you a few pointers. I haven’t done it myself, but I can take a stab at some ideas. The number to send to is defined in line 48. You could add a step in the “sendSMS” function (line 216) to select a number instead of just displaying and using what is in memory (line 227 could call a new menu function). The selection could work like the menu used for choosing the message (main loop line 252).
Thanks and good luck with your project!
Everyone should also make sure that the GSM board is powering on! It does not do so automatically -- I had to solder a jumper. See the documentation section for more info: https://www.arduino.cc/en/Main/ArduinoGSMShield
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