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5V 1 Channel Level Trigger Optocoupler Relay Module 67% OFF 5V 1 Channel Level Trigger Optocoupler Relay Module US$2.99 US$8.99 View It
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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
Hugo-gm 12/07/2015
I have bought 3 modules and use them with arduino modules. They work like a charm. A green led indicates that the Relay is powered, and a blue LED indicates that it is being activated. You can power it directly from the 5V output of arduino, and it consumes much less than 40mA from the control pin on the Arduino board. Therefore, great to use with Arduino. up to now, there are no cons on the relays.
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