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SainSmart 16-Channel 12V Relay Module For PIC ARM AVR DSP Arduino MSP430 TTL Logic

SKU:20-018-103

Availability: In stock

$20.99

Feature:

  • 12V 16-Channel Relay interface board, and each one needs 15-20mA Driver Current
  • Equiped with high-current relay, AC250V 10A ; DC30V 10A 
  • Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)   
  • Indication LED’s for Relay output status
QTY UNITY PRICE DISCOUNT
30 + $19.35  save 8%
100 + $17.85  save 15%
300 + $15.75  save 25%

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Details

Description:

This is a 12V 16-Channel Relay interface board, Be able to control various appliances, and other equipments with large current. It can be controlled directly by Micro-controller (Raspberry Pi, Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) .

Feature:

  • 12V 16-Channel Relay interface board, and each one needs 15-20mA Driver Current
  • Equiped with high-current relay, AC250V 10A ; DC30V 10A 
  • Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)   
  • Indication LED’s for Relay output status

Christmas Light Project

 

Documents:

Customer Reviews

Items 1 to 10 of 11 total

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Not so badReview by Jam
Quality
Price
Value
I have ordered 6 items in your store and they were posted via China Post, It took me 21days before I received my package. It is really a long time, however, the items all I get are just good, they worth waiting. (Posted on 11/13/13)
very wellReview by Blake
Quality
Price
Value
Very well built. A little bit expensive, but it is worth. (Posted on 11/11/13)
long time shippingReview by Bradham
Quality
Price
Value
I have ordered 6 items in your store and they were posted via China Post, It took me 21days before I received my package. It is really a long time, however, the items all I get are just good, they worth waiting. (Posted on 11/8/13)
GoodReview by Kevin
Quality
Price
Value
This relay controller is really worth purchasing, the high quality and reasonable price. Perfect! (Posted on 11/4/13)
work prefectReview by Aliee
Quality
Price
Value
When I first looked at this product, I was attracted to its design. After viewing the customer’s reviews, I decided to buy it .Now I received this relay controller and it is absolutely amazing after using it. (Posted on 10/31/13)
Good for RaspberryReview by Richard
Quality
Price
Value
This board works well with the Rpi but requires a little thought to implement correctly.

First of all the VCC-JD jumper must be removed to isolate the coil voltage from the signal voltage.

The logic is backwards from what might be expected. When the Rpi GPIO or port expander pin is "off" (sinking voltage) the relay is energized.

The two relay version of this board is easily modified so that when a high is presented, the relay energizes. A trace cut and a couple of jumpers are all that are needed.

Other than that, no other considerations are needed.

There are some that say that another driver transistor is needed to interface this to the Rpi. This is NOT true. Having said that, there is the advantage that the logic is reversed (GPIO Hi=ON) when a transistor is added. One could add a hex inverter like a 74HC540 and do the same thing. The VCC-JD/VCC jumper must be re moved and +5 volts from a separate power supply be fed to VCC-JD. A wall-wart works nicely and maintains isolation.

I recommend that a I2C port expander such as the MPC23107 or MPC23008 be used with this relay board. An SPI bus port expander could also be used (MPC23S17 or MPC23S08) with the Rpi. Utilizing both I2C buses on the RPI, that means that a total of 256 relays can be connected to the Rpi. In addition another 256 relays can be connected via the SPI bus. for a grand total of 512 relays controlled by a single Rpi.













(Posted on 6/16/13)
opto-isolatorReview by Antonio
Quality
Price
Value
What kind of opto-isolator have you used in this PCB? (Posted on 5/27/13)
Great Relay Review by Terri
Quality
Price
Value
I just got the relay. After some test, it works great as expected. (Posted on 3/14/13)
Functional but a couple of surprisesReview by John
Quality
Price
Value
Board works well. Would have liked to see better specs in the documentation. The IC's were specified on the schematic but the values of the resistors were not. I had to calculate the input current and the total load current for the +12v supply after I received the board. I also measured the values and confirmed my calculations.
Input current: 3.8 mA per input
Total current required for +12v with all relays closed: 510 mA measured (640 mA calculated worst case)
Happily surprised that total current draw was less than I thought.
One big drawback is that the design of the opto-isolation is really lame. The board has a separate 5v regulator that pretty much defeats the purpose of the opto-isolators. The bias network for the input opto's uses the non-isolated 5v supply that is derived from the +12v. If any transient hits the board, the spike can kick back into the driving circuit. I think that their idea was to make it easy to interface to the board, but I feel that they should have required the user to supply power for the input bias drivers. That way the driver circuit would have been truly isolated. (Posted on 2/8/13)
Great relay boardReview by Paul
Quality
Price
Value
This is a great product at a great price. I have one in service switching broadcast transmitters every day. I am now ordering a second one for another broadcast transmitter site. (Posted on 7/23/12)

Items 1 to 10 of 11 total

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SainSmart 16-Channel 12V Relay Module For PIC ARM AVR DSP Arduino MSP430 TTL Logic http://www.sainsmart.com/media/catalog/product/cache/1/image/265x/9df78eab33525d08d6e5fb8d27136e95/2/2/222.jpg
$20.99