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Geekcreit® 5V 1/2/4/8/16 Channel Relay Module Optocoupler For PIC AVR DSP ARM DSP 40% OFF Geekcreit® 5V 1/2/4/8/16 Channel Relay Module Optocoupler For PIC AVR DSP ARM DSP US$2.41 US$3.99 View It
  • Overall:
Top Positive Review for %s on Banggood, Shop best %s with lowest price on Banggood. Browse most helpful positive review for %s before you buy., rc toys, fun sports, fashion, popular electronics
Rien 05/07/2020
Great product, I would highly recommend it. You can control high voltage devices using the arduino by an electromagnet that is activated using a low voltage.
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