|Shipping:||Free Shipping To UNITED STATES|
Ships within 7-10 business days
|Color||Red + Blue|
|Features||2 Indication LEDs for status, PCB location hole: 3mm|
|Specification||Power supply: 12V; Drive level: 12V TTL (High level drive)|
|Application||Great for Arduino DIY projects|
|Packing List||1 x Relay module|
To enable volume discounts on this site, use coupon code: BULKRATE during checkout. You will see a discount applied at the bottom of the shopping cart. Competitive pricing is available. Contact us for details.
|Quantity||3+ units||5+ units||10+ units|
|Rate||USD$ 6.62 shipped||USD$ 6.6 shipped||USD$ 6.58 shipped|
What is Bulk Rate? BulkRate is a semi-wholesale system with items priced separately from retail. When you use bulk rates, a flat $1.70 registered air mail fee will automatically be added to your cart to ensure delivery of package. While BulkRate's intention is to offer cheaper prices when you buy in bulk, because it is priced separately it on occassions show a higher than retail price. That's why we ask you to enter BULKRATE as a coupon code to manually activate the rates. You can always opt not to use the bulk rates. If you are looking for wholesale prices please feel free to contact us.
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100% of customers would recommend this product to a friend (1 out of 1)
Involvement Level: Expert (understands the inner workings)
Pros: It's easy to use, when you know, where should be connected what. It comes without scheme, but connection is easy: VCC + GND = +12V DC and GND IN1 .. IN4 = your 5V outputs from microcontroller COM = your GND from microcontroller GND = the same as 12 V GND Note: there is a jumper for connecting COM (=microcontroller GND) and GND (=12V source GND), to have the same potential. But this is not needed, when disconnected, the circuit of microcontroller and other 12V circuit are isolated (unless there is any other connection)... Other pros: red LEDs showing state of relais (on/off), one LED is ON when 12V DC supply is present.
Cons: Not everybody likes pinhead connectors, maybe using any terminals can be welcomed.
Other: Worthy to buy. Cheaper than buy the parts anf build by yourself.
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