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4.33 out of 5
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  • 02/12/2021

    Absolutely a great product. The 4 relays work as described and activate with the phone's bluetooth using the "BlueSPP" app that can be downloaded from the Play Store. My card is called JDY-31-SPP and it is supposed to connect automatically for how I set it up but it doesn't, however pressing any button you just pick the card and it activates in 0 seconds. There are two distinct features, one the "Keyboard," has 12 buttons and each one turns on or off. The second one is called "Switch" and each button turns on or off with a touch. When you turn on the button's black shadow turns blue. I translated with google translator the instructions of the app adding also two configuration examples. I will use the Switch card, fewer buttons to manage. I hope it's a product that lasts over time because it's really functional and responsive. I'm trying it out with a phone charger and it works great. The relays logically have the contacts separate from the power supply so it can also be used to manage home lamps or other. Example Switch: The button at each touch turns on and off. Press and hold a button and you enter the "Button editor" Button Text - Status OFF: Light OFF - Select HEX and write the code: A0 01 00 A1 Status ON: Light ON - Select HEX and write the code: A0 01 01 A2 Keyboard example: a button does only one operation, turn on or off. Codes should be written the same in the two fields otherwise it does not work. I entered two examples and the codes to make it work are written in the pdf instructions so it's not difficult to get the app to work. It works perfectly from one side of the housing to the other and the 10 m guaranteed are all there, indeed the walls did not stop the signal, but this depends on the phone vs. If you need write that I will turn the instructions in English. Hello

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  • 15/01/2022

    good product

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