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Sixfab GPRS and Raspberry Pi 3 B+ Communication

Resultado de imagen de gprs shield and raspberry pi


Introduction


In this post will be shown how to communicate the GPRS shield of Sixfab with Raspberry Pi 3 B+. 

The Sixfab GSM/GPRS Shield allows the Raspberry Pi to connect to Internet. This shield uses AT commands to receive orders and execute a function, for example an AT command to test if AT system works correctly. So the aim is to send an AT command and receive an OK answer, "I'm ready". 


Note: Sixfab GSM/GPRS Shield uses UART. As Raspberry Pi only have one UART, using this shield we lose the Raspberry Pi UART communication.

Requeriments

Raspberry Pi 3 B+

Sixfab GPRS


Disable Serial Communication

By default GPIO 14 and GPIO 15 of Raspberry Pi are active as console. So it need to be disabled as serial console is not being used. In this Sixfab tutorial you can see how to disable it (Steps 7 to 9). Follow the next steps to communicate with the GPRS shield. 


Communicate with GPRS shield

In the next Sixfab tutorial you can see how to communicate with the GPRS shield. If you send an AT command and receive OK, great! you've managed to establish connection. 

From step 8 onwards it explains how to send a message. 


 

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