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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The Arduino sketch for sending an SMS is presented below. The best way to do this using an Arduino board is described below. See example code below. If you want to make voice calls, you would also require a headset with microphone.

Arduino software serial has a limit of in baud rate due to the processing that would be required for faster baud rates. Please write down what you have to say, your answers will help us improve our. Send out a text SMS to your cell phone? On lro Mac you may use the command line application “screen” available through Terminal.

Views Read View source View history. 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. This edcom support software power on and reset.

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. Navigation menu Personal tools Log in. To do this, reload the serial relay sketch attached above in the getting started section into ATmegaP and type out the AT Commands manually and check the output.

For developing such a program, we require installation of a new Arduino library – NewSoftSerial Notice: I followed the advice nonetheless and powered both the Arduino and GSM module from a 5V 3A supply the smallest I had in the cupboard above 2A – just remember that the po comms rely on having a common ecom so if you power the Arduino from USB and the GSM module from a supply the serial seems to be a complete failure. Please follow the following steps for running this sketch.


This section is a work in progress Here are the list of connectors and efom headers present on-board the Efco. It has been tested on Arduino Duemilanove but will work on any compatible variant.

GPRS/GSM Module-EFCom Pro EFComPro

However, you must be aware that the buffer reserved for incoming messages are hardcoded to 64 bytes in pfo library header, “SoftwareSerial. XLoader is such a program which runs on Windows can upload. Now that you have gotten a taste of how the AT Commands work, you can try out some more of them before moving on to developing sketches for Arduino to use the GPRS.

Posted by Etienne le Ppro at You can go through the AT Commands reference manual to figure out the sequence of commands required to do a particular task.

You can get the message center number by calling up efckm customer care center of the GSM Service Provider and asking them for it. Newer Post Older Post Home.

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. Extract the folder NewSoftSerial from within this. You just need connect as below: To start off let’s try sending an SMS.

Another issue I encountered was the power requirement for the GSM module, many websites including the official one claims a need for a 2A supply testing I couldn’t get it to consume more than 0. Or you can write po on Projects page.

Make sure to restart the Arduino IDE after the library. Hope the above helps someone not pull out as many hairs as I have Now that our test setup pgo 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.


Sending an SMS however took about seconds, so I pdo a delay ofideally I should have a loop checking for serial available but it wasn’t such a complex project that required the additional code.

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. The program was developed on a Windows PC.

GPRS/GSM Module-EFCom Pro EFComPro (EF-03045)

Arduino One boards are confirmed to work as well January This page was last edited on 8 Mayat You may be getting funky characters, a favourite seems to be y For users with Arduino 1.

The Additional Idea is the place to write your project ideas about this product, or other usages you’ve found. A Ecom program to perfom the same task as the serial relay sketch present above has also been developed and attached: Efocm library can be obtained from here.

But the library used. Bug Tracker is the place you can publish any bugs you think you might have found during use. So you received your GPRSwhat would be the first thing you would want to do with it?

Retrieved from ” https: 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.

Click here to buy: This means that if the GPRS module responds with more data than that, you are likely to loose it with a buffer overflow! Navigation Main page Product Tutorial Random page.