GPRS/GSM - EFCom Arduino Compatible Module
Description
- EFCom arduino compatible module
- Fully compatible with AVR/Arduino/ARM/FPGA
- Super capacitor power supply for the RTC
- Supply voltage range of 3.1 to 4.8V
The GPRS/GSM - EFCom Arduino Compatible Module is an ultra compact and reliable wireless module. It is a breakout board and minimum system of SIM900 Quad-band GSM/GPRS module. It can communicate with controllers via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands). This module support software power on and reset. The GPRS is configured and controlled via its UART using simple AT commands. Just connect on the Arduino/AVR/ARM/FPGA/CPLD board, and easily use AT command to control it.
Features:
- Free serial port connecting, you can select Hardware/software serial port control
- Quad-Band 850/ 900/ 1800/ 1900 MHz
- GPRS multi-slot class 10/8
- GPRS mobile station class B
- Low power consumption: 1.5mA(sleep mode)
ZIP File
- Power Supply: +5V
- 1x GPRS Module -EFCom Pro
- 1x 4 Frequency antenna
- 4x Copper cylinder
- Control via AT commands (GSM 07.07 ,07.05 and EFCOM enhanced AT Commands)
Compliant to GSM phase 2/2+
- Class 4 (2 W 850/ 900 MHz)
- Class 1 (1 W 1800/1900MHz)
Ken, It only works with Rogers in Canada because they still use the 850mhz GSM band for voice calls. Bell and Telus switched over to LTE for both voice and data. It may be best to get the LTE module since you don't know when the GSM bands with cease.
Fast and reliable module. Software power and reset is a good feature. If you're using an Arduino Mega, look carefully pin connection. The module is used through serial AT commands. It's quite easy to program.
I purchased 2 of these units, But they will not connect to Telus or Koodo networks in Canada. Tried both with a number of different unlocked sim cards that do work in cell phones
Have purchased 8 units so far, all are working well. Only improvement would be to have them work with major Canadian carriers like Telus and Bell. Works well on the Rogers network , but Rogers doesn't have as much service area as Telus and Bell
I recently gave this unit a zero as it would not connect with telus or koodo , but it does connect with rogers. It would be nice if future units/firmware would work with telus as their network is larger in canada
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Refund Policy
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
Please review the Return Conditions, Return Exceptions and the process on How to Request a Return Authorization (RA) before initiating a return request.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at RoboItchi's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
- A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
- The RA number is valid for 30 days. The returned item must be received within that period.
- The RA number must be included with the return.
- Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
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- Refunds are processed within 7 days after receipt and inspection of the returned item.
- A ¥10,000 cleaning fee may apply to domestic robots returned in used or unclean condition.
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Return Exceptions
The following products are not eligible for return or refund under this policy:
- Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
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- On-Demand Items — Standard catalogue products not stocked by RoboItchi and ordered specifically to fulfill a customer request.
- Professional & Specialized Equipment — See the Professional & Specialized Equipment Warranty page and Professional & Institutional Buyers (B2B) section in the Terms & Conditions.
How to Request a Return Authorization (RA)
To request a return, submit a support ticket from your account under My Support Tickets to obtain a Return Authorization (RA) number. Returns without an RA number will be refused.

