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This optoisolated 4 relay module is used for controlling several devices operating at high voltages appliances making it ideal for home automation and for your projects.
See description for more details about the product.
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This optoisolated 4 relay module is used for controlling several devices operating at high voltages appliances making it ideal for home automation and for your projects. It can control various appliances remotely via Internet or Bluetooth using an Arduino development board and necessary shield.
Foarte utile!
La ce le-am folosit eu:
https://youtu.be/IH4dWBFF_6A
Alimentarea
VCC ul modulului trebuie conectat la sursa externa, nu la arduino...
Bun si rapid si cu opto-comanda
Mare atentie, un releu trage ~70-80mA - daca este alimentat modulul de la Arduino, nu actionati toate releele simultan ca il ardeti. Folositi sursa externa de alimentare pentru modul.
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