I ordered the EFCom Pro GSM module this month and to be honest it was beyond “fun” to get it working. Being cheap I ordered it for half of what. Power Supply: +5V; 1x GPRS Module -EFCom Pro; 1x 4 Frequency antenna; 4x Copper cylinder; Control via AT commands (GSM , and EFCOM. Only US$, buy EFCom Pro Wireless ///MHz GPRS/GSM Module w/ Antenna – White from DealExtreme with free shipping now.

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This section is a work in progress Here are the list of connectors and pin headers present on-board the GPRS:. A C program to perfom the same task as the serial relay sketch present above has also been developed and attached: Navigation Main page Product Tutorial Random page.

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EFCom Pro GPRS/GSM Module

Sending an SMS however took about seconds, so I have a delay ofideally I should have a loop checking for serial available but it wasn’t such sfcom complex project that required the additional code. The best way to do this using an Arduino board is described below.

Click here to buy: Bug Tracker is the place you can publish any bugs you think you might have found during use. But the library efcon. Now that our test setup is ready, let’s play around with some AT Commands before moving on to programming the Arduino to do it by itself instead of doing it manually.


The Arduino sketch for sending an SMS is presented below.

If, in spite of following the steps as specified above, you aren’t able to receive the message on the target handset, then it might be that you need to set the SMS Message Center number. The Additional Idea is the place to write your project ideas about this product, or other usages you’ve found.

You can ppro through the AT Commands reference manual to figure out the sequence of commands required to do a particular task. This page was last edited on 8 Mayat However, you must be aware that the buffer reserved for incoming messages are hardcoded to 64 bytes in the library header, “SoftwareSerial.

GPRS/GSM Module-EFCom Pro EFComPro

This module support software power on and reset. Arduino One boards are confirmed to work as well January Retrieved from ” https: Views Read View source View history. Extract the folder NewSoftSerial from within this. The program was developed on a Windows PC. Navigation menu Personal tools Log in.

I connected two switches, the aim was to send an SMS when either switch was triggered and a voice call with if the first switch was triggered. See example code below. The amount of time the module takes to register on the network does vary, on Cell C in South Africa it took around 8 seconds before I could start sending messages.

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If while developing an Arduino sketch, you find that the GPRS isn’t what you expected it to do, then you will need to check your AT Commands and their sequence. You may be getting funky characters, a favourite seems to be y For developing such a program, we require installation of a new Arduino library – NewSoftSerial Notice: This means that if the GPRS module responds with more data than that, you are likely to loose it with a buffer overflow!

Or you can write them on Projects page. Make sure efcon restart the Efclm IDE after the library. Being cheap I ordered it for half of what the official Arduino GSM modules goes for so was determined to get it to work even though the documentation available at present pretty much doesn’t exist. You just need connect as below: Send out a text SMS to your cell phone?