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  • December-19 2020 02:02:26

    very good product and good price. If you don't know how that work i found one good tutorial. https://www.makerguides.com/max7219-led-dot-matrix-display-arduino-tutorial/ If you try the programs and see that they do not work with the first one. Try changing the names of the pins you will use and reload the program on Arduino. e.g. CS_PIN 10 DATAPIN 11 CLK_PIN 13

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  • March-15 2020 05:52:18

    Very good price. The quality is there. Perfect for diy projects with an arduino. I recommend

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  • February-06 2020 01:06:45

    the delivered part is not as the product photo and other parts i have got already. It has a gab of 1,5 mm between the elements an is not suitable for running magazine! But you can use the 8x8 LED for DIY.

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  • October-28 2020 05:08:39

    Very good. Proper old-school red led matrix. Four modules on one board which could be cut apart if required, perhaps to make a 16x16 instead of 32x32. This daisy chained with the last one I bought and is working well. The picture shows it just pushed together at right angles with the last one for a quick test. Brightness set to zero is quite bright still, and possible to run marquee powered via an Arduino Nano. Be warned, at full brightness and all on (e.g. test mode), this willl likely draw too

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  • February-01 2020 01:26:33

    LED-matrices are not placed side to side, but between them are more than 1 mm gap. Instead of 128 mm main-board width, as promised in your page, main-board is 132 mm wide. :( They are not usable for scrolling text because of gap between led matrices and due main-board bigger size...

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  • January-15 2021 18:52:35

    excelente, llegó sin problemas y antes de lo establecido.

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  • BDRVIP5
    HU
    October-09 2020 04:01:39

    Jó minőségű termék,. Köszönöm!

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  • August-11 2020 16:21:50

    Um módulo de qualidade, compacta e de resposta rápida

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  • July-24 2020 06:06:31

    It only has the cable and two right angle male connectors. The pins interconnecting the four modules are not supplied. As such, only the first module works without extra parts.

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  • April-21 2020 08:07:17

    Très bien!

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