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  • 27/05/2015

    I read the negative feedback so I was a little daunted. I have just received the shield and after setting a couple of jumpers and wiring to a Uno sent and received SMS no problem. THE REVIEWS ARE TOTALY WRONG. Works very good product. Peter

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  • 11/05/2017

    Although I have not tested all the functionalities, I got the shield to make a call, so I assume that the rest of the functions also work. So long story short, I am very happy with this shield. I found it a bit hard to start with though: After making sure the shield can connect to a network (led blinking with about 1 sec interval) I was not able to use the standard arduino libraries (GSM and GSMtiny) to send an sms/tekst or make a call. It was confusing how to use the jumpers etc. BUT, this item comes with a very usefull and elaborate manual. You can find ik in the questions section below or go here: Banggood, maybe it is a good idea to make a reference to this link in the main item page, just so people can find it quicker.

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  • 25/06/2015

    Devo ancora provarla , vi invio il link della documentazione

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  • 06/12/2015

    Works perfect. Writing a working sketch in arduino is a little bit more difficult because libraries found online doesn't work with this module. You must make your own library or sketch from beginning.

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  • 11/12/2019

    The SIM module is good, to send sms and to call. :)

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  • 25/02/2020

    I’ve been unable to make it work when it is directly plugged on my UNO clone. However it works perfectly when I use the Rx, Tx and Gnd pins from the UART under the Status and NetLight LEDs (as shown in picture). For my project it’s okay, but could be a problem if you want the shield to be stacked. In addition it’s clearly not brand new... but hey, at this price point I can’t complain since it’s working!

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  • 15/09/2019

    Its seems all ok. Just a litle mess in one solder component. Good produt

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  • 09/02/2017

    the DC-DC converter MIC29302WU on the board has 5 pins and uses about 7mA in standby. I cut all traces to pin 1 and 2 and connected pin 2 to RAW and pin 1 to an unused port. so i can shut down the DC-DC converter completely. HIGH on pin1: MIC29302WU working LOW on pin1: MIC29302WU shut down, no current use! best wishes from austria

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  • 09/12/2019

    Like on the description, delivery was fast, i am happy about it. I did not yet try it. Just a pity there is not the male pins to plug the shield directly on the arduino

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  • 26/08/2018

    Well it came very fast,like 7-8 working days. (location Greece) The package was in a good condition and the shield itself also. I havent tested it yet but I dont see any damage.

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