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4.96 out of 5
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  • 20/04/2021

    times of little longer than usual cause covid but as always very acceptable all as per description sin is not present a row of contacts for the rest excellent

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  • 23/05/2017

    i already use this module to communicate more arduinos togheter, the interface is simple and with perfect line of sight i can communicate with included antenna for around 1.5Km. using internal in a house is perfect for this and with hight baudrate bidirectional. for external usage is good but data trasmitted is low and latency is around 2 seconds, really useful to lanch command to a remote machine. some useful information and command can be found here https://www.elecrow.com/download/HC-12.pdf http://avrproject.ru/112/rf_hc12/2016-01-14_122335_HC-12_v2.3B.pdf attached here is some test of distance

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  • 06/07/2017

    it is a good product value for money quality is nice ...

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  • 23/08/2017

    Very nice item,quick delivery.

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  • 23/05/2017

    Very well packed, quality is very good. Work very well. Good service and information. price is spot on.

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  • 19/10/2021

    Great little module. I was able to get a communication range of around 500m with a direct line of sight. Another antenna might improve that a bit. Worth the money. There are a bunch of libraries and instructions out there, so getting these to work is pretty quick if you have a little bit of experience with Arduino programming. If you want more range, you need to buy the HC-12 with the SI4463 chip instead of the SI4438, but this one is substantially more expensive.

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  • 23/09/2021

    Very happy received these parts in good order

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  • 25/03/2021

    got it, works well

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  • 27/11/2020

    incredible little gizmo

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  • 20/11/2020

    It works great!

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