I am testing a Geeetech SIM900 GPRS Shield for use in one of my projects where I want to send periodic text messages with sensor readings. I have the shield up and running and sending the messages but I have run into a problem. Each message shows up twice on the receiving end.
Here's my code for ...
Search found 3 matches
- Sun Oct 19, 2014 12:52 am
- Forum: Open Hardware
- Topic: Getting Double Text Messages from GPRS Shield???
- Replies: 0
- Views: 4874
- Sat Sep 13, 2014 2:34 am
- Forum: Open Hardware
- Topic: Setup of SIM900 Shield
- Replies: 2
- Views: 6559
Re: Setup of SIM900 Shield
Thanks!
- Thu Sep 11, 2014 5:35 am
- Forum: Open Hardware
- Topic: Setup of SIM900 Shield
- Replies: 2
- Views: 6559
Setup of SIM900 Shield
My SIM900 Shield just arrived and I am now reading through the wiki in preparation for setting it up. I have two quick questions that I don't see addressed in the wiki. My apologies if I have missed something in my reading.
1. On the back of the circuit board there is a battery holder for a CR1220 ...
1. On the back of the circuit board there is a battery holder for a CR1220 ...