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4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM

Name: Amazon.com: JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
Price: 6.95 USD
Availability: InStock
Rating: 4.6 (592 reviews)

Brand: JBtek

592 ratings

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Connector Type	Through Hole
Contact Material	Silver, Copper, Or Alloy
Contact Type	Form C Or Spdt
Current Rating	10 Amps
Mounting Type	PCB Mount

About this item

Equiped with high-current relay, AC250V 10A ; DC30V 10A
5V 4-Channel Relay interface board, and each one needs 50-60mA Driver Current
Be able to control various appliances, and other equipments with large current
Application：Supports all MCU control, The industrial field, PLC control, Smart home control
Indication LED's for Relay output status

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This item: JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM

$6.95

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ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects

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EDGELEC 120pcs Breadboard Jumper Wires 10cm 15cm 20cm 30cm 40cm 50 cm 100cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Male to Male Female to Female Multicolored Ribbon Cables

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	This Item JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM	Recommendations ELEGOO 8 Channel DC 5V Relay Module with Optocoupler Compatible with Arduino UNO R3 MEGA 1280 DSP ARM PIC AVR STM32	JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM	ELEGOO 4 Channel DC 5V Relay Module with Optocoupler Compatible with Arduino UNO R3 MEGA 2560 DSP ARM PIC AVR STM32	AEDIKO 2pcs DC 5V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Suport High/Low Level Trigger
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Price	$6.95	$8.99	$8.95	$6.99	$8.99
Delivery	Get it as soon as Tuesday, Jul 1	Get it as soon as Tuesday, Jul 1	Get it as soon as Tuesday, Jul 1	Get it as soon as Tuesday, Jul 1	Get it as soon as Tuesday, Jul 1
Customer Ratings	4.6592	4.6114	4.5503	4.5110	4.658
Sold By	JBtek	ELEGOO Official US	JBtek	ELEGOO Official US	Aediko US
contact type	Form C Or Spdt	Normally Open, Normally Closed	Normally Open	Normally Open	Normally Closed
max switch current	10 amps	10 amps	10 amps	10 amps	—
contact material	Silver, Copper, Or Alloy	—	Silver	Tungsten	Nickel
	—	250 volts	250 volts	250 volts	250 volts
	5 volts	30 volts	5 volts of direct current	5 volts	0.5 volts of direct current
	—	—	—	—	—
coil voltage	5 volts	5 volts	5 volts	5 volts	5 volts
mounting type	PCB Mount	Screw Mount	PCB Mount	PCB Mount	Screw Mount
operation mode	Automatic	Automatic	Automatic	Automatic	Off

Product Description

5V Relay Module 4-ChannelThis is a 5V 4-Channel Relay interface board. It can be controlled directly by Micro-controller (Raspberry Pi, Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)

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Technical Details

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Other Technical Details

Connector Type	‎Through Hole
Contact Material	‎Silver, Copper, Or Alloy
Contact Type	‎Form C Or Spdt
Current Rating	‎10 Amps
Mounting Type	‎PCB Mount
Brand	‎JBtek
Operation Mode	‎Automatic
Coil Voltage	‎5 Volts
Contact Current Rating	‎10 Amps
Maximum Switching Current	‎10 Amps
Minimum Switching Voltage	‎5 Volts
Specification Met	‎Ma
UPC	‎520361134553
Item model number	‎4450182
Item Weight	‎0.32 ounces
Product Dimensions	‎2.56 x 1.97 x 0.79 inches
Item Dimensions LxWxH	‎2.56 x 1.97 x 0.79 inches
Manufacturer	‎JBtek
ASIN	‎B00KTEN3TM
Is Discontinued By Manufacturer	‎No
Date First Available	‎June 6, 2014

Additional Information

Customer Reviews	592 ratings 4.6 out of 5 stars
Best Sellers Rank	#565 in Single Board Computers (Computers & Accessories)

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

Product Warranty: For warranty information about this product, please click here

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592 global ratings

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Customers find the relay module works well with Raspberry Pi 3 and appreciate its straightforward setup and good value for money. The build quality is reliable, and customers like the power handling capability, with one noting very low current draw on the coils. The activation rate receives mixed feedback, with several customers reporting issues with active LOW operation, and the LED status is also mixed, with some customers reporting missing LEDs. The reliability of the relays is mixed, with some customers reporting failures after a year of use.

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Functionality Ease of use Value for money Build quality Power requirement Relay reliability Led status Activation rate

131 customers mention "Functionality"119 positive12 negative

Customers report that the relay module works great with Raspberry Pi 3 and has no issues.

"Excellent board for Raspberry Pi. Assuming you have a solid power supply, you can run this board off the +5v provided on the pin header (Pin #2)...." Read more

"...Good board, just got burned because I didn’t do my research." Read more

"These work great with an Arduino...." Read more

"...It has worked great, and I was really happy with how clean the wiriing ended up...." Read more

25 customers mention "Ease of use"20 positive5 negative

Customers find the relay module straightforward to use and hook up, with one customer noting it's super convenient for programmable boards.

"...driving the GPIO pin low (FALSE) should turn it off, but it's easily fixed in software. Pros: Plug and play, just works...." Read more

"...The rest were very straightforward....simply hook a GPIO to each of the ports and off you go...." Read more

"This is a solid board that is easy to use. It can be triggered by either 3.3V or 5V Arduinos and probably most other controllers...." Read more

"...Our only complaint was the lack of a schematic to help us work quicker, so we created our own and then things went much quicker...." Read more

22 customers mention "Value for money"22 positive0 negative

Customers find the relay module to be good value for money, describing it as cheap and an economical connection.

"1 star off for no documentation but otherwise a very cost effective relay board. Provides optical isolation and some degree of physical isolation...." Read more

"Amazing tech for such an affordable price. Would buy again for use with my 3B+." Read more

"...person who wants to automate using the Raspberry Pi, and the price can't be beat...." Read more

"Great price and works great with the Raspberry Pi for programming with the I/Os...." Read more

20 customers mention "Build quality"20 positive0 negative

Customers find the relay module well made and reliable.

"Good quality product and as described." Read more

"...The build seemed to comparable to brand-name Arduino card. It's mechanical so there's a click -- you can hear it in the video...." Read more

"...Construction: Well built." Read more

"This is a solid board that is easy to use. It can be triggered by either 3.3V or 5V Arduinos and probably most other controllers...." Read more

8 customers mention "Power requirement"6 positive2 negative

Customers appreciate the relay module's power requirements, with one customer noting its low current draw on the coils and another mentioning its high voltage capability.

"With low side input voltage the board is great for 3.3 and 5V micro controllers or single board computers (e.g. Raspberry Pi)...." Read more

"...it uses opto-isolators on the front end, the Pi can easily sink the tiny amount of current (around 2 ma) needed to energize each relay...." Read more

"...I suspect it's a power problem because sometimes I can get one of the relays to activate but instead of the solid click I get a buzz...." Read more

"Worked great for 2 mos. still gets power but relays will not switch over any longer with 120v AC power on otherside...." Read more

19 customers mention "Relay reliability"10 positive9 negative

Customers have mixed experiences with the relay module's reliability, with some finding it great while others report issues, with one customer noting that two units failed after a year of use.

"With low side input voltage the board is great for 3.3 and 5V micro controllers or single board computers (e.g. Raspberry Pi)...." Read more

"...The onboard LEDs on this unit will all be dim, relays inactive until you set your GPIO mode..." Read more

"...The relays can handle 10A but even 16AWG wire is a pain to shove into those holes. Also, it appears that the relay turns on with low voltage." Read more

"...these fail after about a period of a month or two - the relay stuck in the off position, or flipped back and forth rapidly from off to on...." Read more

8 customers mention "Led status"5 positive3 negative

Customers have mixed opinions about the relay module's LEDs, with some appreciating the built-in indicators while others report missing LEDs. One customer notes that the LEDs are dimly lit.

"...thing that I thought was really really nice is that there is a built in LED indicator of which ones are activated and which aren't...." Read more

"...The LEDs on the relay board are dimly lit which suggests there are pull-down resistors in operation...." Read more

"Works really fine. and it also shows with onboard SMD LEDs the state for each relay...." Read more

"...The little LED's are nice for troubleshooting." Read more

13 customers mention "Activation rate"0 positive13 negative

Customers have mixed experiences with the relay module's activation rate, with several noting that it operates in active LOW mode rather than active HIGH, and one customer reporting issues with the relays not switching properly.

"...This board is turning on the relays when the inputs are LOW!!!!..." Read more

"I would give it 5 stars except it's active low. The problem with active low is the outputs on many control systems default low on power-up...." Read more

"...Problem is this board needs me to output LOW instead of the HIGH required by the relay shield...." Read more

"...use make it too easy to glitch the input signal and trigger the relay at undesired times, e.g. during program initialization...." Read more

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William
As described with good quality
Reviewed in the United States on June 5, 2025
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Good quality product and as described.

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Matt
This board + Raspberry Pi + good power supply = A great combination!
Reviewed in the United States on March 22, 2016
Verified Purchase
Excellent board for Raspberry Pi. Assuming you have a solid power supply, you can run this board off the +5v provided on the pin header (Pin #2). The relay board is fully buffered, meaning that the relay coils are not directly driven from the GPIO pins which protects the Pi and means that this board is plug and play. If you're going to be doing a lot of work with the RasPi, I highly recommend a USB voltmeter/ammeter combo so you can monitor your power usage. At full load, you want to ensure that your voltage on your USB port is as close to 5.0VDC as possible, anything less than 4.65VDC will cause problems with the Pi and stability. Your amperage should never exceed the USB power supply's capability. I use a 2A (2000mA) power supply and with full load (all relays on), the board + Raspberry Pi B+ only gets to .56A (560mA) so I'm well with spec. With all relays off, I pull about .24A (240mA)

HOW TO HOOK IT UP:
The board has a six pin header labeled GND, IN1, IN2, IN3, IN4, VCC and a two pin jumpered header labelled VCC/JD-VCC. Leave the jumper installed. For GND, you can connect to any of the GND pins on the Pi's header (Pins 6,9,14,20,25,30,34,39). For VCC, connect to pin 2 (+5V). Connect each of the IN pins to a GPIO pin (I used GPIO 8,9,10,11 which are pins 24,19,21,23 respectively).

HOW TO CONTROL IT:
Use Python (should be available in your RasPi distro) along with the RPI.GPIO library. You'll need to run your scripts with sudo as manipulating the GPIO pins requires root access. You can set the GPIO pin using GPIO.output(PIN, True) to turn off the relay, and GPIO.output(PIN, False) to turn it on. My only nitpick is that the logic is backwards. Driving a GPIO pin high (TRUE), should turn on the relay while driving the GPIO pin low (FALSE) should turn it off, but it's easily fixed in software.

Pros: Plug and play, just works. Will be getting more of these. You don't have to worry about building interface circuits, transistors, load calculations down to the mA or anything overly complicated. Basic research into the GPIO library for Python, a couple of GPIO pinouts for the RasPi and I was up and running within minutes.

Cons: Logic is backwards, you have to send a GPIO pin LOW to turn on the relay but this is a very minor thing and can be easily fixed in software.

Verdict: If you are looking to be able to control equipment using a Raspberry Pi, this is the board to use.

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52 people found this helpful

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LOTS OF MISINFORMATION EXISTS IN REVIEWS, PLEASE READ
Reviewed in the United States on February 14, 2016
Verified Purchase
Making the documentation myself:

As there is no documentation, I was very skeptical of this unit trying to sink too much current to my RasPi's GPIO pins (which can only sink/source a max of 16mA per pin). Reading the datasheets for the individual components "confirmed" this believe by the Optocoupler (817C) showing normal operating current of 20mA - yikes!

I crunched the numbers and took some readings from my relay module in use and found that the unit only sinks ~2.1mA on the IN'X' pins, well within the tolerance of the RasPi (most Arduinos can sink/source 40mA or so, so even less of a problem there). The reason why is there is a 1k ohm resistor in series with the optocoupler and an LED, so basically 2 LEDs and a 1k resistor (the input side of the Optocoupler is just an LED).

Why did they make the optocoupler run at suboptimal current? It enables the relay to be de-energized when using 3.3V as is common on Arduino and is the only voltage the RasPi's GPIO can handle.

READ HERE FOR HOW TO HOOK THIS BAD BOY UP THE RIGHT WAY (WITHOUT BLOWING UP YOUR PI OR ARDUINO):

Arduino:
Most Arduinos can handle I/O DC current of up to 40mA (This relay module only draws 2.1mA from the I/O pin). You probably won't encounter a microcontroller that cannot handle this current (if you do, that means you are probably an embedded engineer and this guide isn't for you). Some Arudinos can operate at 3.3V (not from USB), if this is your case then you will need a separate 5V circuit to power the relay module.

RasPi:
Raspberry Pi's are a bit more limited I/O wise than their Arduino brethren, only being able to take I/O DC current up to 16mA. Again, this is still well within the limits. We are using the Raspberry Pi's power bus, which the supported current is dependant on the USB powersupply you have chosen - if you are using a 2A charger like you should be, you won't encounter any issues.

Relay Board:
There are two rows of input pins (GND IN1 IN2 IN3 IN4 VCC) and (JD-VCC VCC) with the latter coming with a jumper bridging the pins (keep the jumper on!). Connect a wire from GND on your device to GND on the relay module. Connect a wire from the 5V pin on your micro to the VCC pin that is adjacent to IN4 (not the one next to JD-VCC!). Also note the 5V pin I mentioned is the actual 5V rail of the micro, not the GPIO or I/O pin that you are going to be using to trigger the relay. Finally hook the GPIO or digital I/O pin up to IN1 and set the pin to 'low' or 0V in the software to activate and 'high' or 3.3V-5V to deactivate.

Special Considerations:
If your board cannot source ~60mA from the 5V rail or if your board only runs at a maximum of 3.3V you have to use a secondary power source to power the relay.

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207 people found this helpful

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Jordan Johnson
Actuates on low input
Reviewed in the United States on October 2, 2024
Verified Purchase
You need to know that it only takes a low input to actuate and that if you need to actuate using a high input aka high output from your source you should get a different one with options. Good board, just got burned because I didn’t do my research.

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Chet V
Nice construction with clearly marked connections
Reviewed in the United States on October 7, 2024
Verified Purchase
With low side input voltage the board is great for 3.3 and 5V micro controllers or single board computers (e.g. Raspberry Pi). The board has been in service for a year without any problems (switching 2 to 8amps)

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Francisco
good item
Reviewed in the United States on November 8, 2024
Verified Purchase
Very Happy whit my purchase

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Steve in Monterey
Work great, but note the 5V current draw
Reviewed in the United States on August 1, 2018
Verified Purchase
These work great with an Arduino. Just be aware that they draw enough 5V power that you can't reliably use more than one or two sets powered directly from the Arduino. With three I was causing the Arduino's internal voltage to drop, which caused random resets. The fix is simple - just provide 5V power to the pins on these modules from another source. Be sure that the ground is at the same level as the Arduino's, since the control pins use that as a reference.

I soldered a thick wire on the underside to connect all 4 center pins. They are aligned so that you can do this without hitting other pins. That allows a single connection to provide output power (120VAC, for example) for all four relays in the set. Of course you must be careful that nothing conductive touches that live wire!

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Cliente de Amazon
Buen producto
Reviewed in Mexico on October 24, 2018
Verified Purchase

Funciona perfecto

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Cliente
falta informacion tecnica
Reviewed in Mexico on July 9, 2018
Verified Purchase
la tarjeta no trae nada de información, aunque puede ser intuitiva la manera de conectar, siempre es útil que se proporciona

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4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM

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5.0 out of 5 stars As described with good quality

5.0 out of 5 stars This board + Raspberry Pi + good power supply = A great combination!

5.0 out of 5 stars LOTS OF MISINFORMATION EXISTS IN REVIEWS, PLEASE READ

4.0 out of 5 stars Actuates on low input

5.0 out of 5 stars Nice construction with clearly marked connections

5.0 out of 5 stars good item

5.0 out of 5 stars Work great, but note the 5V current draw

Top reviews from other countries

5.0 out of 5 stars Buen producto

3.0 out of 5 stars falta informacion tecnica

As described with good quality

This board + Raspberry Pi + good power supply = A great combination!

LOTS OF MISINFORMATION EXISTS IN REVIEWS, PLEASE READ

Actuates on low input

Nice construction with clearly marked connections

good item

Work great, but note the 5V current draw

Buen producto

falta informacion tecnica