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Topic: Trash compactor, Arduino Mega1280 and GSM module recommendation (Read 1 time) previous topic - next topic

catador4255

I'm just beginning a project using an Arduino Mega1280. It'll control (standalone) a trash compactor and send information via SMS. There are two areas of development: control and communication.
In the control part I don't see any obstacles: 7 digital inputs and 7 digital outputs, 2 of them connected to relays to operate forward and reverse rotation of a motor.
In the communication part I need help. I plan to send a SMS messages every hour through a GSM module.
These are the options:
1-   Arduino GPRS Quadband Module. Costly, but this shield looks good.
http://www.cooking-hacks.com/index.php/shop/wireless/gsm-gprs/arduino-gprs-module.html

2-   Cellular shield SM5100B seems to have problems
http://www.sparkfun.com/products/9607

3-   Arduino GSM SIEMENS TC35 SMS Wireless Module UART/232A - lot cheaper ($37.90!!!) but it brings lots of additional work like physical connection of RS232 with USB and programming the communication between the two.
http://www.ebay.com/itm/Arduino-GSM-SIEMENS-TC35-SMS-Wireless-Module-UART-232-/260842341023

Please, share any experiences or thoughts you have. Most likely it'll save me some white hair. Thanks!

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