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  • 03/08/2022

    because I have this little gadget now I don't have to butcher my Arduino nano anymore for communicating to the devices, another nice thing is that this board already has two voltages 3.3V & 5V built in that you can select with a jumper so I don't need the voltage shifter board in between. This saves me a lot of hassle. I tested it of course and it works fine.

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  • 15/04/2018

    Paid USD 1.53 - a total bargain as postage included. Ordered 02-04-2018 delivered to my UK address 13-04-2018 (11 days order to receipt). Module has 6 pins labelled with board printing on underside as follows: 1. 5V 2. VCC 3. 3V3 4. TXD 5. RXD 6. GND A shorting jumper was supplied with the module - but as supplied it was shorting pins 4 (TXD) and 5 (RXD). I note that the module shown in the main description photo shows the jumper shorting pins 2 (VCC) and 3 (3V3). I assume that the position of the shorting jumper is used to change between 3.3V and 5V operation. The entire board is coated with a transparent heat shrink sleeve giving the board a certain level of insulation/protection from external entities. I have yet to power up this module and put it to work (reflashing Sonoff modules with Tasmota firmware) - but at present confidence level is high!

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  • 29/07/2018

    Kleines Gerät mit viel Leistung. Ist mit Windows 10 kompatibel und läuft sogar mit einen USB 3 Port gut zusammen.

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  • 30/07/2020

    Good products, delayed a little but satisfied.

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  • 02/10/2019

    The device has arrived very soon. It works very well

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  • 31/08/2019

    Working well. Good product for the price.

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  • 01/12/2020

    100% working. Good price and fast delivery.

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  • 25/09/2020

    Thank you

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  • 19/06/2020

    came in on time. cool!

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  • 16/05/2019

    Item as advertised.

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