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Brand: SainSmart
SKU: 101-70-101
4-Channel 5V Relay Module
SKU: 101-70-101
10
$9.99
The Relay module allows a wide range of microcontrollers such as Arduino, AVR, PIC, ARM with digital outputs to control larger loads and devices like AC or DC Motors, electromagnets, solenoids, and incandescent light bulbs.
Memorial Day 15% OFF, Learn more about Coupon-eligible products.
Code: MEM15
SPECIFICATION
- 5V 4-Channel Relay interface board, and each one needs 15-20mA Driver Current
- Equiped Equipped 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 active low)
- Opto-isolated inputs
- Indication LED’s for Relay output status
WHAT'S IN THE PACKAGE
1 x 4-Channel 5V Relay Module
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Customer Reviews
4.9 Based on 10 Reviews
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W
09/28/2020
wim 
Belgiumnot a perfect fit for raspberry pi out-of-the-box, but easy workaround possible
nice and decent relay module, with optocouplers to have a second isolation barier (provided you disconnect the jumper and use an isolated supply for jd-vcc). yet, two important thoughts; * Although the relays are rated 10A, I doubt that the used pcb traces are able to carry that kind of current. fixable by adding (soldering) some wires between the relay terminals and the screw terminals. * digital inputs are dimensioned for 5V signals (due to how the monitor LEDs are hooked up). Raspberry pi has 3.3V gpio. Can be adapted easily for 3.3V signals by solder-bridging these LEDs (the 1.7V supply difference matches the LED forward drop pretty well). Of course the LEDs will no longer function in that scenario.
JD
04/08/2020
John D. 
United StatesSainsmart Relay
Works as intended and very easy to use!
K
01/03/2014
KK4HFJ Very useful relay board
Easily control heat, a/c fans, and de-humidifier with this 4 port relay board. Upgraded my Arduino weather station to a full HVAC control system.
B
12/23/2013
Bruce Great board
I wired this to an RF receiver from adafruit and some household AC sockets and gave it as a gift. Now the recipient has 4 individually toggled remotely controlled AC sockets.
F
11/12/2013
Fok I like sainsmart
I think SainSmart is really a fair-price online shop. They offer many varieties and selection of Arduino tools, one-stop shop make me more convenient to find tools for my project, Yeah, it is pretty good.
P
11/10/2013
Parsons Good
Have used it for several days. Smooth operation and no problem were found. Not bad!
R
11/07/2013
Ron Good store
I think SainSmart is really a fair-price online shop. They offer many varieties and selection of Arduino tools, one-stop shop make me more convenient to find tools for my project, Yeah, it is pretty good.
T
10/31/2013
Thomas looking for my second order
it's a nice relay board for my arduino projects. Good product an unbeatable price, I will buy the next time if needed.
K
01/15/2013
Ken Great price, easy to use
Got my order in exactly 2 weeks, quicker then I expected coming from China to Canada. Had it up and running within minutes, took longer to strip the wire then it did to hook it up and write the code. The only thing that I had to search for was what the VCC-JDVCC jumper did. If you remove the jumper you can use a separate power supply to run the relays if you hook it up to JDVCC. With the jumper in place the power for the relays comes from VCC aka your arduino.
E
07/12/2012
Elliott Well-made module
I watch at Amazon a video customer review about this relay module. I thought it was great so I bought one here. It is well made and it works as it should
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