Modules working fine in the beginning, but after some time the LED intensity decreases and a random 7 segment element stops working. After some more time, the whole module shuts down. After a reset, the whole thing starts over again. I'm using an original Arduino and the tm1638 library and the wiring are like in one of the several youtube videos about this module.

Modules working fine in the beginning, but after some time the LED intensity decreases and a random 7 segment element stops working. After some more time, the whole module shuts down. After a reset, the whole thing starts over again. I'm using an original Arduino and the tm1638 library and the wiring are like in one of the several youtube videos about this module.

Modules working fine in the beginning, but after some time the LED intensity decreases and a random 7 segment element stops working. After some more time, the whole module shuts down. After a reset, the whole thing starts over again. I'm using an original Arduino and the tm1638 library and the wiring are like in one of the several youtube videos about this module.

Bardzo szybka dostawa, otrzymana 14 dni po zamowieniu. Dobry produkt.

Very fast delivery, received 14 days after order. Good product.

Bardzo szybka dostawa, otrzymana 14 dni po zamowieniu. Dobry produkt.

Doskonały produkt. Zamówiony 16 marca 2020, otrzymany 17 kwietnia 2020.

Excellent produit. Commandé le 16 mars 2020, reçu le 17 avril 2020.

Doskonały produkt. Zamówiony 16 marca 2020, otrzymany 17 kwietnia 2020.

Bien

Bien

Bien

Work as expected, good quality

Work as expected, good quality

Work as expected, good quality

o.k.

o.k.

o.k.

Prodotto di per se valido anche se di non facile utilizzo. Alcune librerie disponibili non sembrano funzionare correttamente a meno di laboriose ricerche su internet. Ha funzionato solamente con istruzioni ad hoc in linguaggio C

Prodotto di per se valido anche se di non facile utilizzo. Alcune librerie disponibili non sembrano funzionare correttamente a meno di laboriose ricerche su internet. Ha funzionato solamente con istruzioni ad hoc in linguaggio C

Prodotto di per se valido anche se di non facile utilizzo. Alcune librerie disponibili non sembrano funzionare correttamente a meno di laboriose ricerche su internet. Ha funzionato solamente con istruzioni ad hoc in linguaggio C

And everything works with both Arduino and ESP32.

And everything works with both Arduino and ESP32.

And everything works with both Arduino and ESP32.

Well built and coming with cable once plugged in it worked immediately. Very easy to communicate with with ready sketches available..

Well built and coming with cable once plugged in it worked immediately. Very easy to communicate with with ready sketches available..

Well built and coming with cable once plugged in it worked immediately. Very easy to communicate with with ready sketches available..

Everithing OK

Everithing OK

Everithing OK