Introduction

This post it is showed the basics to work with GPRS SIMCOM SIM900 quad band GSM shield fully compatible with Arduino.

Requirements

Ethernet or 20 I/Os PLC:      Ethernet PLC     20 I/Os PLC    

Industrial Shields boards:   Industrial Shields Boards

GPRS SIMCOM SIM900 quad band GSM Shield

Specifications

This shield has the following features:

1. Quad-Band 850/900/1800/1900MHz
2. GPRS multi-slot class 10/8
3. GPRS mobile station class B
4. Compliant to GSM phase 2/2+
5. Class 4 (2W@850/900MHz)
6. Class 1 (1W@1800/1900MHz)
7. Control via commands (GSM 07.07, 07.05 and SIMCOM enhanced AT
   Commands)
8. Short message service
9. Free serial port selection
10. 3.5 inch standard sonic sockets for MIC and phone
11. Operation temperature: -40℃ ~ +85℃

The pins of the shield are the following ones:

Implementation

To connect this shield with our Products you just simply need to connect Rx and Tx to an RX/TX interface of our devices. You also need to connect the GND to the GND of the PLC. The last thing is to power supply VCC that this shield is powered with 5V. It can be used for the 5V output of the PLC. To configure the shield now only depends on the software.

If you use an external power supply you have to take in mind that you need to connect the GND to have a common GND for the supply, the PLC and the shield.

It will be let a link to see a simple tutorial and how it is done the software part:

https://arduino-kit.ru/userfiles/image/GSM-shield-datasheet-Arduino-tutorial.pdf