Current Rating | 10 Amps |
---|---|
Brand | JBtek |
Operation Mode | Automatic |
Coil Voltage | 5 Volts |
Contact Current Rating | 10 Amps |
Maximum Switching Current | 10 Amps |
Specification Met | Ma |
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 |
4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Current Rating | 10 Amps |
Brand | JBtek |
Operation Mode | Automatic |
Coil Voltage | 5 Volts |
Contact Current Rating | 10 Amps |
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
Customers usually keep this item
This product has fewer returns than average compared to similar products.
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This Item JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM | Recommendations | dummy | dummy | dummy | dummy | |
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Price | $6.95$6.95 | $9.99$9.99 | $7.88$7.88 | $7.99$7.99 | $8.95$8.95 | $14.99$14.99 |
Delivery | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 |
Customer Ratings | ||||||
Value for money | 4.6 | 3.2 | — | 4.1 | 4.3 | — |
Easy to use | 4.3 | 5.0 | — | 4.1 | 4.5 | — |
Sold By | JBtek | DIYables | SuziePi | ELEGOO Official US | JBtek | HONGXINBAORUI |
max switch current | 10 amps | 10 amps | 10 amps | 10 amps | 10 amps | 10 amps |
— | 250 volts | 250 volts | 250 volts | 250 volts | — | |
— | — | — | — | — | — | |
— | — | — | — | — | — | |
coil voltage | 5 volts | 5 volts | 5 volts | 5 volts | 5 volts | 5 volts |
operation mode | Automatic | Automatic | Automatic | Automatic | Automatic | — |
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Customer Review: Great little relay module
CMYK Josh
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Additional Information
Customer Reviews |
4.6 out of 5 stars |
---|---|
Best Sellers Rank | #195 in Single Board Computers (Computers & Accessories) |
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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)
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the performance, value, appearance and ease of use of the relay. For example, they mention it works well, is good value for money and that it has a fantastic design indicating the relay connections. That said, opinions are mixed on the quality, indicator, and ease to use.
AI-generated from the text of customer reviews
Customers like the performance of the relay. They say it works well, is completely functional on arrival, and has no issues. Some customers also mention that the board itself is excellent.
"...Pros: Plug and play, just works. Will be getting more of these...." Read more
"...It has worked great, and I was really happy with how clean the wiriing ended up...." Read more
"...The unit works well with my Raspberry Pi 2 and Pi 3. I will be buying more.Addendum for Pi users...." Read more
"...The relay controls a 12V power supply connected to a solenoid. No issues, and no extra circuitry is necessary to protect the Raspberry Pi...." Read more
Customers appreciate the value of the relay. They mention it's a cheap and easy way to interface with anything. Customers also say it'll make an economical connection from almost any micro to. Overall, customers are happy with their purchase and recommend it to others.
"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
Customers are satisfied with the appearance of the relay. They mention that it looks great, functions superb, and has a simple design. Some appreciate the fantastic design indicating the relay connections and input pin connections.
"...Pros:Simple design10A relays are good for most requirementsCompactCons:None" Read more
"Everything looks great, and functions superb (Came in a sealed anti-static bag). I Should have bought two!..." Read more
"...Fantastic design indicating the relay connections and input pin connections." Read more
"A simple design, well made. Couldn't be more pleased...." Read more
Customers find the relay versatile and useful for their projects. They say it's great for Arduino projects and prop controller projects, and a good relay block for small home automation projects. Some customers also use it for light control with a Raspberry Pi Zero.
"Great product for my light control with a raspberry Pi Zero" Read more
"Perfect for arduino prop controller projects!" Read more
"Good relay block for small home automation projects. I have used it for Arduino and Raspberry projects and works fine with both." Read more
"Great for Arduino projects and lots of other uses. High isolation and high voltage/power handling capability...." Read more
Customers are mixed about the quality of the relay. Some mention it's very good quality, well built, and reliable, while others say that it has 1 bad relay and stopped working after a couple weeks of daytime use.
"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
"...Also, it appears that the relay turns on with low voltage." Read more
"...] Great little relay module. Wired it right up and it worked on the first firing...." Read more
"...Construction: Well built." Read more
Customers are mixed about the ease of use of the relay. Some mention that it works every time, is super-easy to integrate with an Arduino-type device, and is a cheap and easy way to interface with anything you want to turn on. However, others say that there's a lack of documentation for the inexperienced on wiring configurations and instructions from the manufacturer. Some say the schematic is missing and the directions could be much better. Overall, the product does require a certain knowledge base and is plug and play.
"...from the GPIO pins which protects the Pi and means that this board is plug and play...." Read more
"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
"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
"...The rest were very straightforward....simply hook a GPIO to each of the ports and off you go...." Read more
Customers are mixed about the indicator. Some mention it's a nice setup with indicating LEDs built in, and it shows the state for each relay. However, others say that the indicator LED is missing, the status LED was DOA, and the LEDs on the relay board 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
"...figure out when Relay1 didn't work before I noticed that the indicator LED is missing...." Read more
Customers are dissatisfied with the pins of the relay. They mention that the headers were bent, the product was damaged, and the led was broken off. Some customers also report that the pin sticks out of the bag.
"...the GPIO library (under Python) or shutdown the Pi, the GPIO pins are floating - this leads to undesirable relay chatter without the pull-downs...." Read more
"Delivery: Mine arrived with three pins bent, sticking out of the plastic wrapper...." Read more
"...As best as I can tell, the led was broken off...it just wasn't installed." Read more
"Opened the package to find that ALL of the pins had been bent..." Read more
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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.
Simple Setup (using Arduino UNO):
Connect the VCC to the 5V power supply
Connect the GND to the ground on the controller
Connect IN1-4 to DIO pins on the controller
Leave the JD-VCC to VCC jumper
Connect your common to the center pole on the relay and your feed line to the left pole for Normally Open (off) and right pole for Normally Closed (on).
Program your controller to digitalWrite(pin, LOW) when you want the relays to switch.
Pros:
Simple design
10A relays are good for most requirements
Compact
Cons:
None
One thing that tripped me up is that it activates when you send a LOW vs. HIGH. One other 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. Overall I love how simple this was and will probably get more for future relay work
Addendum for Pi users. When the Pi first boots the GPIO pins are not yet defined as outputs. The LEDs on the relay board are dimly lit which suggests there are pull-down resistors in operation. However, once you define the GPIO pins as outputs the relays immediately switch on. You can turn off the relays by sending the GPIO output high (GPIO.output(xx, True) where xx is the corresponding pin number).
To resolve these issues I decided to add inverters between the GPIO pins and the relay card. For this I chose a quad, 2-input schmitt NAND gate device (4093B). I also added pull-down resistors (47k ohm) to the 4093B inputs because when you cleanup the GPIO library (under Python) or shutdown the Pi, the GPIO pins are floating - this leads to undesirable relay chatter without the pull-downs. You can power the 4093B from the 3.3V power supply on the Pi's interface. You can probably substitute a 4011 Quad NAND for the 4093 but I haven't tried it. The picture shows my inverter card which solders direct to the relay card.
Using GPIO pins 23 through 26 the code to initialize then turn on relays 1 and 3 would look something like this:
import RPi.GPIO as GP
GP.setmode(GP.BCM)
GP.setup([23,24,25,26], GP.OUT)
GP.output([23,24,25,26], [True, False, True, False])
...
to turn on / off relay 2 would be:
GP.output(24, True)
GP.output(24, False)
...
GP.cleanup()
Reviewed in the United States on November 2, 2016
Addendum for Pi users. When the Pi first boots the GPIO pins are not yet defined as outputs. The LEDs on the relay board are dimly lit which suggests there are pull-down resistors in operation. However, once you define the GPIO pins as outputs the relays immediately switch on. You can turn off the relays by sending the GPIO output high (GPIO.output(xx, True) where xx is the corresponding pin number).
To resolve these issues I decided to add inverters between the GPIO pins and the relay card. For this I chose a quad, 2-input schmitt NAND gate device (4093B). I also added pull-down resistors (47k ohm) to the 4093B inputs because when you cleanup the GPIO library (under Python) or shutdown the Pi, the GPIO pins are floating - this leads to undesirable relay chatter without the pull-downs. You can power the 4093B from the 3.3V power supply on the Pi's interface. You can probably substitute a 4011 Quad NAND for the 4093 but I haven't tried it. The picture shows my inverter card which solders direct to the relay card.
Using GPIO pins 23 through 26 the code to initialize then turn on relays 1 and 3 would look something like this:
import RPi.GPIO as GP
GP.setmode(GP.BCM)
GP.setup([23,24,25,26], GP.OUT)
GP.output([23,24,25,26], [True, False, True, False])
...
to turn on / off relay 2 would be:
GP.output(24, True)
GP.output(24, False)
...
GP.cleanup()
I just send a low signal to the corresponding GPIO when I turn on my program. At no point does the relay do anything unintentional with that setup.
Good job JBtek!